unit MapFunctionEx;interfaceuses SysUtils, Windows, ADODB, Classes, Types, Contnrs, MapFunction, ComCtrls, StrUtils, KD_MAPBASIC;type TKDPoint = class(TObject) Public X: double; Y: double; constructor Create(); Overload; constructor Create(X: double; Y: double); Overload; constructor Create(pt: TKDPoint); Overload; function IsEqual(pt: TKDPoint): boolean; Overload; function IsEqual(pt: TKDPoint; tolerace : double): boolean; Overload; end; TKDSegmentPoint = class(TObject) Public X: double; Y: double; SegmentInedex: integer; constructor Create(); Overload; constructor Create(pt: TKDPoint); Overload; constructor Create(gpt: TKDSegmentPoint); Overload; function Copy(): TKDSegmentPoint; function ToPoint(): TKDPoint; end;type TKDTrackTable = class(TObject) Private m_TrackTableName: string; m_FilePath: string; m_WinID: integer; Public constructor Create(WinID: integer); property TrackTableName: string Read m_TrackTableName; procedure CreateTrack(structTable: string); procedure ClearTrack(); procedure DropTrack(); procedure PackTrack(); function TrackLine(): string; function TrackPolygon(): string; function TrackPoint(): string; end;type /// 图形数据类型 TGrapiDataType = set of (gdtPoint, gdtPolygon, gdtLine, gdtText);type TKDMapinfoProxy = class(TObject) Private MapInfo: Variant; procedure GetOrderIntersectNodes(tagetMapinfoGeo: string; mapinfoGeo: string; intersectNodes: TObjectList); procedure QueryNodesOfGeomety(mapinfoGeo: string; partIndex: integer; nodeList: TObjectList); Overload; Public constructor Create(oleMapinfo: Variant); procedure AddTable(tableName: string; mapId: integer); function TableExists(tableName: string): boolean; function CreateMap(tableName: string; mapName: string; hwnd: integer): integer; procedure OpenTable(tablePath: string; tableAlias: string); procedure CloneTableStructure(sourceTabla: string; destTablePath: string); procedure SaveTableToFile(sourceTabla: string; destTablePath: string; whereClause: string); procedure DropTable(tabName: string); procedure DeleteTable(tableName: string); function QueryTableRecordCount(tableName: string): integer; function QueryTableColumnCount(tableName: string): integer; function QueryTableColumnName(tableName: string; colIndex: integer): string; function QueryTableColumnIndex(tableName: string; colName: string): integer; function QueryTableColumnType(tableName: string; colName: string): integer; procedure CloseTable(tableName: string); procedure ClearTable(tableName: string); procedure SaveAllTable(); function TableIsSaved(slName: string): boolean; procedure PackTable(tabName: string); procedure SplitLineTable(tableName: string; splitTableName: string); procedure RepeatPoints(tagetTable: string; repeatTable: string); procedure SplitLineTableEx(tableName: string; splitTableName: string); procedure SplitLineByRegion(lineTableName: string; regionTableName: string); function QueryNodeOfGeomety(mapinfoGeo: string; partIndex: integer; nodeIndex: integer): TKDPoint; function QueryPartsOfGeomety(mapinfoGeo: string): integer; function QueryNodesOfGeomety(mapinfoGeo: string; partIndex: integer): TObjectList; Overload; function QueryNodeCount(mapinfoGeo: string; partIndex: integer): integer; Overload; function QueryNodeCount(mapinfoGeo: string): integer; Overload; procedure QueryNodePoint(mapinfoGeo: string; Polygon_num, node_num: integer; var X, Y: double); function ObjectCvtPolygon(bm1, bm2: string): string; procedure ObjectCvtPolygonEx(sourceTable, destTable: string); function ObjectCvtLine(bm1, bm2: string; ProBar: TProgressBar = nil): string; function GetObjType(objName: string): integer; function CheckTableObject(TableType: TGrapiDataType; bm: string): integer; procedure SaveTable(tableName: string); procedure CommitTable(tableName: string); procedure RollbackTable(tableName: string); procedure CopyTableData(srcTableName: string; destTableName: string; whereClause: string); procedure CopyTableDataEx(srcTableName: string; destTableName: string; whereClause: string; fieldList: string); procedure CopyTableGhraphData(srcTableName: string; destTableName: string; whereClause: string); procedure EraseObjects(srcTableName: string; eraseTableName: string); function EmnuTableColumn(tableName: string; withName: boolean = true): string; function QuerySourceTableName(selectionName: string): string; function QuerySelctionCount(): integer; function QuerySelctionTableName(): string; procedure UnitePolygon(strYTableName: string; strMBTableName: string; CurWinID: integer); procedure SetProgressBar(bOn: boolean = true); procedure SetTableEnable(tableName: string; bUserBrowse: boolean = true; bUserMap: boolean = true; bUserClose: boolean = true; bUserRemove: boolean = true; bUserDisplayMap: boolean = true); procedure LineSplitPolygon(strLineTableName: string; strPolygonTableName: string); procedure EarsureObj(strYTableName: string; strMBTableName: string; bBosom: boolean = true); function CheckRepeatPolygon(checkedTable, errorViewTable : string; toleranceArea: double; units: string) : boolean; function CheckPolygonState(strTableName: string; var rowId : string ): boolean; procedure AutoSnap(tableName: string; tolerance: double; units: string; whereClause: string); procedure SimplePLine(tableName: string; distance: double; units: string; whereClause: string); procedure SimplePLine_2(tableName: string; bend: double; distance: double; units: string; whereClause: string); procedure RemoveRegion(tableName: string; area: double; units: string; whereClause: string); function GetIntersectNodes(tagetMapinfoGeo: string; mapinfoGeo: string): TObjectList; function GetBevelRate(pt1: TKDPoint; pt2: TKDPoint; precision: integer): double; function BetweenOnPointsX(targetPt: TKDPoint; fromPt: TKDPoint; toPt: TKDPoint): boolean; function BetweenOnPointsY(targetPt: TKDPoint; fromPt: TKDPoint; toPt: TKDPoint): boolean; function BetweenOnPoints(targetPt: TKDPoint; fromPt: TKDPoint; toPt: TKDPoint): boolean; procedure ConvertPolyongToSimplePline(polyTable, polyUidField, plineTable, plineUidFiled: string); //重新排序图层 procedure ReOrderAllLayer(CurWinID: integer; OrderNumString: string); procedure LayerToLayerIndex(CurWinID: integer; LayerIndex, ToLayerIndex: integer); function GetLayerCount(WinID: integer): integer; function GetLayerIndex(WinID: integer; strTabName: string): integer; function GetLayerName(WinID: integer; strTabIndex: integer): string; function CheckTableObjec(X, Y: double; strTableName: string; radius: double; flag: integer): boolean; //分解图层中的对象 procedure Disaggregate(strTableName: string; bAll: boolean); procedure UnitePiecePolygon(strTableName: string; intArea: double = 100); procedure UonionObject(tableName: string; whereClause: string); procedure LineSplitPolyong_2(lineTable: string; polyTable: string); procedure LineAntitone(strTableName: string; RowID: integer); procedure ShowArrows(LayerName: string; bShow: boolean = true); function GetSelectionLayerName(): string; //将图形转换为折线对象 procedure CvtToPLine(mapinfoGeo: string); procedure CvtToRegion(mapinfoGeo: string); //面层分割面层 procedure SplitByPolygon(tableName: string; splitTableName: string); procedure CvtToPLineTable(strTableName: string; strTableName2: string; CurWinID: integer); Overload; procedure CvtToPLineTable(srcTable: string; destTable: string; whereClause: string); Overload; procedure CvtToPLineTableEx(srcTable: string; destTable: string; whereClause: string; fieldList: string); procedure RemoveMapInWindow(WinID: integer); procedure CloseMapinfoTable(); procedure CloseMapinfoTempTable(); procedure CloseTempTable(); function QueryOpenedTable(): integer; function TrackLine(): string; function TrackPolygon(): string; function TrackPoint(): string; procedure DoMapinfoSql(sql: string); { //2006-3-27 变更图形处理函数 ma procedure SplitLineTable(tableName : string; splitTableName : string); procedure UnitePolygon(strYTableName:String;strMBTableName:String); procedure LineSplitPolygon(strLineTableName:String;strPolygonTableName:String); } end;implementationuses Math, BasicFunction;///------------------Type TKDPoint method------------------constructor TKDPoint.Create();begin self.X := 0; self.Y := 0;end;constructor TKDPoint.Create(X: double; Y: double);begin self.X := X; self.Y := Y;end;constructor TKDPoint.Create(pt: TKDPoint);begin self.X := pt.X; self.Y := pt.Y;end;function TKDPoint.IsEqual(pt: TKDPoint): boolean;begin if (self.X = pt.X) and (self.Y = pt.Y) then result := true else result := false;end;function TKDPoint.IsEqual(pt: TKDPoint; tolerace : double): boolean;begin if (self.X + tolerace < pt.X) and (self.X - tolerace > pt.X) and (self.Y + tolerace < pt.Y) and (self.Y - tolerace > pt.Y) then result := true else result := false;end;///------------------Type TKDSegmentPoint method------------------constructor TKDSegmentPoint.Create();begin self.X := 0; self.Y := 0; self.SegmentInedex := -1;end;constructor TKDSegmentPoint.Create(pt: TKDPoint);begin self.X := pt.X; self.Y := pt.Y; self.SegmentInedex := -1;end;constructor TKDSegmentPoint.Create(gpt: TKDSegmentPoint);begin self.X := gpt.X; self.Y := gpt.Y; self.SegmentInedex := gpt.SegmentInedex;end;function TKDSegmentPoint.Copy(): TKDSegmentPoint;var point: TKDSegmentPoint;begin point := TKDSegmentPoint.Create(); point.X := self.X; point.Y := self.Y; point.SegmentInedex := self.SegmentInedex;end;function TKDSegmentPoint.ToPoint(): TKDPoint;begin result := TKDPoint.Create(self.X, self.Y);end;///------------------Type TKDTrackTable method------------------constructor TKDTrackTable.Create(WinID: integer);begin self.m_FilePath := AppPath; self.m_TrackTableName := 'KDTrackingTable'; self.m_WinID := WinID;end;procedure TKDTrackTable.CreateTrack(structTable: string);var path: string;begin path := m_FilePath + '/' + m_TrackTableName + '.TAB'; goMapinfoProxy.CloneTableStructure(structTable, path); goMapinfoProxy.OpenTable(path, m_TrackTableName); goMapinfoProxy.AddTable(m_TrackTableName, m_WinID);end;procedure TKDTrackTable.ClearTrack();begin goMapinfoProxy.DeleteTable(m_TrackTableName);end;procedure TKDTrackTable.DropTrack();begin goMapinfoProxy.DropTable(m_TrackTableName);end;procedure TKDTrackTable.PackTrack();begin goMapinfoProxy.PackTable(m_TrackTableName);end;function TKDTrackTable.TrackLine(): string;var mapinfoObj: string;begin mapinfoObj := goMapinfoProxy.TrackLine(); goMapinfoProxy.DoMapinfoSql('insert into ' + m_TrackTableName + ' (obj) Values(' + mapinfoObj + ')'); goMapinfoProxy.CommitTable(m_TrackTableName); result := mapinfoObj;end;function TKDTrackTable.TrackPolygon(): string;var mapinfoObj: string;begin mapinfoObj := goMapinfoProxy.TrackPolygon(); goMapinfoProxy.DoMapinfoSql('insert into ' + m_TrackTableName + ' (obj) Values(' + mapinfoObj + ')'); goMapinfoProxy.CommitTable(m_TrackTableName); result := mapinfoObj;end;function TKDTrackTable.TrackPoint(): string;var mapinfoObj: string;begin mapinfoObj := goMapinfoProxy.TrackPoint(); goMapinfoProxy.DoMapinfoSql('insert into ' + m_TrackTableName + ' (obj) Values(' + mapinfoObj + ')'); goMapinfoProxy.CommitTable(m_TrackTableName); result := mapinfoObj;end;///------------------Type TKDMapinfoProxy method------------------///@author: yzhou///@date: 2006.3.20///@description: TKDMapinfoProxy构造函数constructor TKDMapinfoProxy.Create(oleMapinfo: Variant);begin MapInfo := oleMapinfo;end;///@author: ma///@date: 2006.04.4.9///@description: 将图形分割。///@para tableName: 要被分割的层// @para splitTableName: 分割层procedure TKDMapinfoProxy.SplitByPolygon(tableName: string; splitTableName: string);var colNum: integer; i: integer; mapinfoSql: string; whereClause: string; colStr: string; Tempstr: string; str1: string; IntersectRow: integer; recordCnt: integer; RowID: string; cutterId: string; rowTemp: integer;begin colNum := self.QueryTableColumnCount(tableName); for i := 1 to colNum do begin str1 := self.QueryTableColumnName(tableName, i); Tempstr := Tempstr + str1 + '=' + str1 + ','; end; colStr := LeftStr(Tempstr, Length(Tempstr) - 1); whereClause := ' where obj Intersects Aobj '; whereClause := whereClause + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select obj from ' + tableName; mapinfoSql := mapinfoSql + whereClause; mapinfoSql := mapinfoSql + ' into Temp'; MapInfo. do ('select * from ' + splitTableName + ' where object into Temp2'); recordCnt := self.QueryTableRecordCount('Temp2'); //循环分割层 for i := 1 to recordCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from Temp2'); //mapinfo.do('select * from temp2 where rowid='+inttostr(i)); MapInfo. do ('Aobj = Temp2.Obj'); RowID := MapInfo.Eval('Temp2.rowid'); MapInfo. do (mapinfoSql); //选中面层所有面图形 执行分解、保存 rowTemp := self.QueryTableRecordCount('Temp'); if rowTemp > 0 then begin MapInfo. do ('Set Target On'); MapInfo. do ('select obj from Temp2 where rowid=' + RowID); MapInfo. do ('Objects Split Into Target Data ' + colStr); end; end; self.CommitTable(tableName); //分解 self.Disaggregate(tableName, false); self.CloseTable('Temp'); self.CloseTable('Temp2');end;/// 功能：返回选择对象有层名/// 作者：姚箫/// 日期：2006.4.9function TKDMapinfoProxy.GetSelectionLayerName(): string;begin result := MapInfo.Eval('Selectioninfo(' + Inttostr(SEL_INFO_TABLENAME) + ')');end;/// 功能：返回地图窗口上的图层数/// 作者：姚箫/// 日期：2006.3.29/// 参数说明：strWinID->窗口IDfunction TKDMapinfoProxy.GetLayerCount(WinID: integer): integer;begin result := MapInfo.Eval('MapperInfo(' + Inttostr(WinID) + ', ' + Inttostr(MAPPER_INFO_LAYERS) + ')');end;/// 功能：返回地图窗口上指定层名的层索引/// 作者：姚箫/// 日期：2006.3.29/// 参数说明：strTabName->层名///WinID->窗口句柄function TKDMapinfoProxy.GetLayerIndex(WinID: integer; strTabName: string): integer;var i, LayerCount: integer; LayerName: string;begin result := -1; LayerCount := GetLayerCount(WinID); for i := 1 to LayerCount do begin LayerName := MapInfo.Eval('LayerInfo(' + Inttostr(WinID) + ', ' + Inttostr(i) + ', ' + Inttostr(LAYER_INFO_NAME) + ')'); if UpperCase(Trim(LayerName)) = UpperCase(Trim(strTabName)) then begin result := i; Break; end; end;end;/// 功能：返回地图窗口上指定层索引的层名/// 作者：姚箫/// 日期：2006.3.29/// 参数说明：strTabIndex->层名///WinID ->窗口句柄function TKDMapinfoProxy.GetLayerName(WinID: integer; strTabIndex: integer): string;begin result := MapInfo.Eval('LayerInfo(' + Inttostr(WinID) + ', ' + Inttostr(strTabIndex) + ', ' + Inttostr(LAYER_INFO_NAME) + ')');end;///@author: yzhou///@date: 2006.04.28///@description: 将指定表中的对象捕捉到一起///@para tableName: 要捕捉的表名///@para tolerance: 捕捉容差///@para units: 捕捉容差的度量单位///@para whereClause: where条件procedure TKDMapinfoProxy.AutoSnap(tableName: string; tolerance: double; units: string; whereClause: string);var mapinfoSql: string;begin mapinfoSql := 'select * from ' + tableName; if (Trim(whereClause) <> '') then mapinfoSql := mapinfoSql + ' where ' + whereClause; MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 0) then begin mapinfoSql := 'Objects Snap From Selection Tolerance Node ' + FloatToStr(tolerance) + ' Units "' + units + '"'; MapInfo. do (mapinfoSql); end;end;///@author: yzhou///@date: 2006.04.28///@description: 去除指定表中的交叠的线对象///@para tableName: 要操作的表名///@para distance: 交叠点的容差///@para units: 容差值的度量单位///@para whereClause: where条件///@remark: 只对表中的Line和PLine对象进行操作procedure TKDMapinfoProxy.SimplePLine(tableName: string; distance: double; units: string; whereClause: string);var mapinfoSql: string;begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where (int(ObjectInfo(obj, 1)) = 3 or int(ObjectInfo(obj, 1)) = 4)'; // 3 : const OBJ_TYPE_LINE; 4 : OBJ_TYPE_PLINE if (Trim(whereClause) <> '') then mapinfoSql := mapinfoSql + ' and ' + whereClause; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 0) then begin mapinfoSql := 'Objects Snap From Selection Thin Distance ' + FloatToStr(distance) + ' Units "' + units + '"'; MapInfo. do (mapinfoSql); end;end;///@author: yzhou///@date: 2006.09.25///@description: 去除指定表中的交叠的线对象///@para tableName: 要操作的表名///@para distance: 交叠点的容差///@para units: 容差值的度量单位///@para whereClause: where条件///@remark: 只对表中的Line和PLine对象进行操作procedure TKDMapinfoProxy.SimplePLine_2(tableName: string; bend: double; distance: double; units: string; whereClause: string);var mapinfoSql: string;begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where (int(ObjectInfo(obj, 1)) = 3 or int(ObjectInfo(obj, 1)) = 4)'; // 3 : const OBJ_TYPE_LINE; 4 : OBJ_TYPE_PLINE if (Trim(whereClause) <> '') then mapinfoSql := mapinfoSql + ' and ' + whereClause; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 0) then begin mapinfoSql := 'Objects Snap From Selection Thin Bend ' + FloatToStr(bend) + ' Distance ' + FloatToStr(distance) + ' Units "' + units + '"'; MapInfo. do (mapinfoSql); end;end;///@author: yzhou///@date: 2006.04.28///@description: 删除除表中面积小于指定值的区域对象///@para tableName: 要操作的表名///@para area: 区域对象的面积上限///@para units: 面积上限的度量单位///@para whereClause: where条件procedure TKDMapinfoProxy.RemoveRegion(tableName: string; area: double; units: string; whereClause: string);var mapinfoSql: string;begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; if (Trim(whereClause) <> '') then mapinfoSql := mapinfoSql + ' and ' + whereClause; MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 0) then begin mapinfoSql := 'Objects Snap From Selection Cull Area ' + FloatToStr(area) + ' Units "' + units + '"'; MapInfo. do (mapinfoSql); end;end;///@author: yzhou///@date: 2006.05.13///@description: 获取两个mapinfo对象的交点,并按顺序插入到点集intersectNodes中///@para: tagetMapinfoGeo: 目标对象///@para: mapinfoGeo: mapinfo对象///@para intersectNodes: 点集合（要求按tagetMapinfoGeo对象的方向有序排列）///@remark: (1)此函数用到了mapinfo中定义的变量'Fobj'，在调用函数时会修改原'Fobj'中的值///(2) 若两条线在首尾相交，则在首尾处的交点不包含在返回的点集中procedure TKDMapinfoProxy.GetOrderIntersectNodes(tagetMapinfoGeo: string; mapinfoGeo: string; intersectNodes: TObjectList);var mapinfoSql: string; tempObj: string; i, j, k: integer; inetersectPt, fromPt, toPt: TKDPoint; fristNode, lastNode: TKDPoint; ptSegment: TKDSegmentPoint; isInsert: boolean;begin tempObj := 'FObj'; mapinfoSql := tempObj + ' = intersectNodes(' + tagetMapinfoGeo + ', ' + mapinfoGeo + ', 7)'; MapInfo. do (mapinfoSql); if (self.QueryNodeCount(tempObj) < 1) then Exit; fristNode := self.QueryNodeOfGeomety(tagetMapinfoGeo, 1, 1); lastNode := self.QueryNodeOfGeomety(tagetMapinfoGeo, 1, self.QueryNodeCount(tagetMapinfoGeo, 1)); for i := 1 to self.QueryNodeCount(tempObj, 1) do begin inetersectPt := self.QueryNodeOfGeomety(tempObj, 1, i); //排除交点等于首尾节点的情况 if (inetersectPt.IsEqual(fristNode) or inetersectPt.IsEqual(lastNode)) then continue; for j := 1 to self.QueryNodeCount(tagetMapinfoGeo, 1) - 1 do begin fromPt := self.QueryNodeOfGeomety(tagetMapinfoGeo, 1, j); toPt := self.QueryNodeOfGeomety(tagetMapinfoGeo, 1, j + 1); { //排除交点与与原有节点重合的情况 if (inetersectPt.IsEqual(fromPt) or inetersectPt.IsEqual(toPt)) then break; } //判断交点是否在线段上 if (BetweenOnPoints(inetersectPt, fromPt, toPt) = true) then begin ptSegment := TKDSegmentPoint.Create(inetersectPt); ptSegment.SegmentInedex := j; //按次序插入交点集 isInsert := false; for k := 0 to intersectNodes.Count - 1 do begin if (ptSegment.SegmentInedex = TKDSegmentPoint(intersectNodes.Items[k]).SegmentInedex) then begin if (BetweenOnPoints(ptSegment.ToPoint(), fromPt, TKDSegmentPoint(intersectNodes.Items[k]).ToPoint())) then begin intersectNodes.Insert(k, ptSegment); isInsert := true; end; end; if (ptSegment.SegmentInedex < TKDSegmentPoint(intersectNodes.Items[k]).SegmentInedex) then begin intersectNodes.Insert(k, ptSegment); isInsert := true; end; if (isInsert = true) then Break; end; // for k := 0 to intersectNodes.Count - 1 do //未定位到相应的索引位置则加入到最后一个位置 if (isInsert = false) then intersectNodes.Add(ptSegment); // 找到交点所在的线段时，应该退出循环 Break; end; // if (BetweenOnPoints(inetersectPt, fromPt, toPt)) then end; // for j := 1 to self.QueryNodeCount(tagetMapinfoGeo, 1) do end; // for i := 1 to self.QueryNodeCount(tempObj, 1) doend;///@author: yzhou///@date: 2006.05.13///@description: 获取两个mapinfo对象的交点///@para: tagetMapinfoGeo: 目标对象///@para: mapinfoGeo: mapinfo对象///@remark: 此函数用到了mapinfo中定义的变量'Fobj'，在调用函数时会修改原'Fobj'中的值function TKDMapinfoProxy.GetIntersectNodes(tagetMapinfoGeo: string; mapinfoGeo: string): TObjectList;var intersectNodes: TObjectList;begin intersectNodes := TObjectList.Create(); self.GetOrderIntersectNodes(tagetMapinfoGeo, mapinfoGeo, intersectNodes); result := intersectNodes;end;///@author: yzhou///@date: 2006.05.13///@description: 获取两个点构成直线的斜率///@para: pt1, pt2: 计算斜率的两点///@para: precision: 斜率的精度（即保留小数的位数）function TKDMapinfoProxy.GetBevelRate(pt1: TKDPoint; pt2: TKDPoint; precision: integer): double;var bevelRate: double;begin if (abs(pt1.X - pt2.X) < 5E-100) then begin bevelRate := Infinity; end else begin precision := 0 - precision; bevelRate := abs((pt1.Y - pt2.Y) / (pt1.X - pt2.X)); bevelRate := RoundTo(bevelRate, precision); end; result := bevelRate;end;///@author: yzhou///@date: 2006.05.15///@description: 判断一个点按X方向是否在另外两点之间function TKDMapinfoProxy.BetweenOnPointsX(targetPt: TKDPoint; fromPt: TKDPoint; toPt: TKDPoint): boolean;var fromX, toX: double;begin if (fromPt.X <= toPt.X) then begin fromX := fromPt.X; toX := toPt.X; end else begin fromX := toPt.X; toX := fromPt.X; end; if ((targetPt.X >= fromX) and (targetPt.X <= toX)) then result := true else result := false;end;///@author: yzhou///@date: 2006.05.15///@description: 判断一个点按Y方向是否在另外两点之间function TKDMapinfoProxy.BetweenOnPointsY(targetPt: TKDPoint; fromPt: TKDPoint; toPt: TKDPoint): boolean;var fromY, toY: double;begin if (fromPt.Y <= toPt.Y) then begin fromY := fromPt.Y; toY := toPt.Y; end else begin fromY := toPt.Y; toY := fromPt.Y; end; if ((targetPt.Y >= fromY) and (targetPt.Y <= toY)) then result := true else result := false;end;///@author: yzhou///@date: 2006.05.15///@description: 判断一个点是否在另外两点所构成的线段上function TKDMapinfoProxy.BetweenOnPoints(targetPt: TKDPoint; fromPt: TKDPoint; toPt: TKDPoint): boolean;var rate1, rate2: double; rateEqual: boolean;begin rate1 := self.GetBevelRate(fromPt, toPt, 5); rate2 := self.GetBevelRate(fromPt, targetPt, 5); if ((rate1 = Infinity) or (rate2 = Infinity)) then begin if ((rate1 = Infinity) and (rate2 = Infinity)) then rateEqual := true else rateEqual := false; end else begin if abs(rate1 - rate2) < 1E-4 then rateEqual := true else rateEqual := false; end; if (rateEqual = true) and (self.BetweenOnPointsX(targetPt, fromPt, toPt) = true) and (self.BetweenOnPointsY(targetPt, fromPt, toPt) = true) then result := true else result := false; { if (abs(self.GetBevelRate(fromPt, ToPt, 3) - self.GetBevelRate(fromPt, targetPt, 3)) < 0.01) and (self.BetweenOnPointsX(targetPt, fromPt, toPt) = true) and (self.BetweenOnPointsY(targetPt, fromPt, toPt) = true) then begin result := true; end else begin result := false; end; }end;///@author: yzhou///@date: 2006.09.27///@description: 此函数算法有问题，未经过测试procedure TKDMapinfoProxy.ConvertPolyongToSimplePline(polyTable, polyUidField, plineTable, plineUidFiled: string);var mapinfoSql: string; i: integer; RowID, tempID: string; tagetIdList: string;begin self.CvtToPLineTable(polyTable, plineTable, ''); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select polyTable.polyUidField "polyUid", plineTable.plineUidFiled "plineUid"'; mapinfoSql := mapinfoSql + ' from polyTable, plineTable'; mapinfoSql := mapinfoSql + ' where polyTable.obj intersects plineTable.obj'; //mapinfoSql := mapinfoSql + ' and int(ObjectInfo(plineTable.obj, 20)) = int(ObjectInfo(IntersectNodes(plineTable.obj, polyTable.obj, 6), 20)) + 1'; mapinfoSql := mapinfoSql + ' and int(ObjectInfo(plineTable.obj, 20)) = int(ObjectInfo(polyTable.obj, 20))'; mapinfoSql := mapinfoSql + ' into kd_line_temp_table'; mapinfoSql := StringReplace(mapinfoSql, 'polyTable', polyTable, [rfReplaceAll]); mapinfoSql := StringReplace(mapinfoSql, 'polyUidField', polyUidField, [rfReplaceAll]); mapinfoSql := StringReplace(mapinfoSql, 'plineTable', plineTable, [rfReplaceAll]); mapinfoSql := StringReplace(mapinfoSql, 'plineUidFiled', plineUidFiled, [rfReplaceAll]); MapInfo. do (mapinfoSql); mapinfoSql := 'update kd_line_temp_table set plineUid = polyUid'; MapInfo. do (mapinfoSql); self.CloseTable('kd_line_temp_table'); self.Disaggregate(plineTable, true); for i := 1 to self.QueryTableRecordCount(polyTable) do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from ' + polyTable); RowID := MapInfo.Eval(polyTable + '.rowid'); if (tagetIdList <> '') then tagetIdList := tagetIdList + ',' + RowID else tagetIdList := RowID; mapinfoSql := ' select * from ' + polyTable + ' where rowid = ' + RowID + 'into kd_poly_temp_table'; MapInfo. do (mapinfoSql); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + plineTable; mapinfoSql := mapinfoSql + ' where ' + plineUidFiled + ' not in (' + tagetIdList + ')'; mapinfoSql := mapinfoSql + ' into kd_line_temp_table'; MapInfo. do (mapinfoSql); self.EraseObjects('kd_line_temp_table', 'kd_poly_temp_table'); self.CloseTable('kd_poly_temp_table'); self.CloseTable('kd_line_temp_table'); end; //whereCluase := polyUidField + ' in (' + tagetIdList + ')'; //self.CvtToPLineTable(polyTable, plineTable, whereCluase); self.Disaggregate(plineTable, true); //self.SaveTable(plineTable); //self.SplitLineTableEx(plineTable, plineTable);end;procedure TKDMapinfoProxy.RemoveMapInWindow(WinID: integer);var i: integer;begin for i := 1 to GetLayerCount(WinID) do MapInfo. do ('Remove Map Window ' + Inttostr(WinID) + ' Layer ' + GetLayerName(WinID, i) + ' Interactive');end;///@author: yzhou///@date: 2006.06.14///@description: 关闭MapInfo中所有打开的表procedure TKDMapinfoProxy.CloseMapinfoTable();begin MapInfo. do ('Close All');end;{var mapinfoSql, tableName: string; tables : TStringList; i: integer;begin tables := TStringList.Create(); for i := 1 to self.QueryOpenedTable() do begin tableName := MapInfo.Eval('TABLEINFO(' + Inttostr(i) + ',' + Inttostr(TAB_INFO_NAME) + ')'); tables.Add(tableName); end; for i := 0 to tables.Count - 1 do self.CloseTable(tables.Strings[i]);end;}///@author: yzhou///@date: 2006.5.8///@description: 关闭由MapInfo产生的临时表procedure TKDMapinfoProxy.CloseMapinfoTempTable();var mapinfoSql, tableName: string; tables: TStringList; i: integer;begin tables := TStringList.Create(); for i := 1 to self.QueryOpenedTable() do begin tableName := MapInfo.Eval('TABLEINFO(' + Inttostr(i) + ',' + Inttostr(TAB_INFO_NAME) + ')'); if Pos('_', tableName) <= 0 then begin if MapInfo.Eval('TableInfo(' + tableName + ',' + Inttostr(TAB_INFO_TEMP) + ')') = 'T' then tables.Add(tableName); end; end; for i := 0 to tables.Count - 1 do self.CloseTable(tables.Strings[i]);end;///@author: yzhou///@date: 2006.5.8///@description: 关闭由MapInfo产生的以Query开头的临时表procedure TKDMapinfoProxy.CloseTempTable();var mapinfoSql, tableName: string; i: integer; tmpStrList: TStringList;begin try tmpStrList := TStringList.Create; for i := 1 to self.QueryOpenedTable() do begin tableName := MapInfo.Eval('TABLEINFO(' + Inttostr(i) + ',' + Inttostr(TAB_INFO_NAME) + ')'); //记录临时表 if UpperCase(LeftStr(tableName, 5)) = 'QUERY' then tmpStrList.Add(tableName); end; //关闭临时表 for i := 0 to tmpStrList.Count - 1 do self.CloseTable(tmpStrList.Strings[i]); finally tmpStrList.Free; end;end;///@author: yzhou///@date: 2006.5.8///@description: 查询在所有MapInfo中打开的表的个数///@return: 表的个数function TKDMapinfoProxy.QueryOpenedTable(): integer;begin result := MapInfo.Eval('NumTables()');end;///@author: yzhou///@date: 2006.07.03///@description: 用户鼠标坐标输入创建一条折线///@return: Mapinfo线对象///@remark: ***************未实现******************function TKDMapinfoProxy.TrackLine(): string;begin { Mapinfo. do ('Run Menu Command ID 2065'); } result := 'PLineTrackerObj';end;///@author: yzhou///@date: 2006.07.03///@description: 用户鼠标坐标输入创建一个面///@return: Mapinfo面对象///@remark: ***************未实现******************function TKDMapinfoProxy.TrackPolygon(): string;begin { Mapinfo. do ('Run Menu Command ID 2066'); } result := 'PolygonTrackerObj';end;///@author: yzhou///@date: 2006.07.03///@description: 用户鼠标坐标输入创建一个点///@return: Mapinfo点对象///@remark: ***************未实现******************function TKDMapinfoProxy.TrackPoint(): string;begin { Mapinfo. do ('Run Menu Command ID 2067'); } result := 'PointTrackerObj';end;/// 功能：重新排序图层/// 作者：姚箫/// 日期：2006.3.29/// 参数说明：OrderNumString->层索引字符串如（'2, 3, 4, 1, 5'）///WinID ->窗口句柄procedure TKDMapinfoProxy.ReOrderAllLayer(CurWinID: integer; OrderNumString: string);var dSql: string;begin if OrderNumString <> '' then begin dSql := 'Set Map window ' + Inttostr(CurWinID) + ' order ' + OrderNumString; MapInfo. do (dSql); end;end;/// 功能：把指定序号的层放到指定序号上/// 作者：姚箫/// 日期：2006.3.29/// 参数说明：LayerIndex ->层索引///ToLayerIndex->目标层索引///WinID ->窗口句柄procedure TKDMapinfoProxy.LayerToLayerIndex(CurWinID: integer; LayerIndex, ToLayerIndex: integer);var OrderNumStr: string; i: integer;begin for i := 1 to GetLayerCount(CurWinID) do begin if (i <> LayerIndex) and (i <> ToLayerIndex) then OrderNumStr := OrderNumStr + ',' + Inttostr(i) else begin if i = ToLayerIndex then begin OrderNumStr := OrderNumStr + ',' + Inttostr(ToLayerIndex); OrderNumStr := OrderNumStr + ',' + Inttostr(LayerIndex); end; end; end; OrderNumStr := RightStr(OrderNumStr, Length(OrderNumStr) - 1); ReOrderAllLayer(CurWinID, OrderNumStr);end;///@author: yzhou///@date: 2006.3.16///@description: 添加表到地图窗口///@para tableName: 添加的表名///@para mapId: 地图窗口IDprocedure TKDMapinfoProxy.AddTable(tableName: string; mapId: integer);begin if not TableExists(tableName) then begin //raise Exception.Create('"' + tableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; MapInfo. do ('Add Map Window ' + Inttostr(mapId) + 'Layer ' + tableName); //如果是变更图斑层则显示样式 if RightStr(tableName, 5) = 'BGTBP' then begin MapInfo. do ('Set Map Layer ' + tableName + ' Label Font ("Arial",288,8,16711680,16776960) With DLDM Auto On'); MapInfo. do ('Set Map Layer ' + tableName + ' Label Position Center'); end;end;///@author: yzhou///@date: 2006.3.16///@description: 判断表是否已经打开///@para tableName: tab表名///@return: 返回true表示已经打开,反之。function TKDMapinfoProxy.TableExists(tableName: string): boolean;begin result := EXISTTABLEs(tableName);end;///@author: yzhou///@date: 2006.3.16///@description: 创建地图窗口///@para tableName: 初始表名///@para mapName: 地图窗口名称///@para hwnd: 地图窗口绑定的hwnd///@return: 返回地图窗口IDfunction TKDMapinfoProxy.CreateMap(tableName: string; mapName: string; hwnd: integer): integer;var mapId: integer;begin mapId := 0; MapInfo. do ('Set Next Document Parent ' + Inttostr(hwnd) + ' Style 1'); MapInfo. do ('Map From ' + tableName); mapId := StrToInt(MapInfo.Eval('FrontWindow()')); MapInfo. do ('set window frontwindow() title "' + mapName + '"'); MapInfo. do ('set paper units "cm"'); MapInfo. do ('set distance units "m"'); MapInfo. do ('SET MAP CoordSys Table ' + tableName); result := mapId;end;///@author: yzhou///@date: 2006.3.16///@description: 打开一个tab表///@para tablePath: 表的路径///@para tableAlias: 打开表的别名procedure TKDMapinfoProxy.OpenTable(tablePath: string; tableAlias: string);begin MapInfo. do ('Open Table "' + tablePath + '" As ' + tableAlias);end;///@author: yzhou///@date: 2006.05.19///@description: 将表另存为table文件///@para tablePath: 源表表名///@para destTablePath: 文件名及其路径///@para whereClause: where条件 procedure TKDMapinfoProxy.SaveTableToFile(sourceTabla: string; destTablePath: string; whereClause: string);var mapinfoSql: string;begin mapinfoSql := mapinfoSql + ' select * from ' + sourceTabla; if (Trim(whereClause) <> '') then mapinfoSql := mapinfoSql + ' where ' + whereClause; mapinfoSql := mapinfoSql + ' into TempTableCopy'; MapInfo. do (mapinfoSql); MapInfo. do ('Commit Table TempTableCopy as "' + destTablePath + '"'); MapInfo. do ('Close table TempTableCopy');end;///@author: yzhou///@date: 2006.3.16///@description: 复制表结构///@para tablePath: 源表表名///@para destTablePath: 目标表的路径procedure TKDMapinfoProxy.CloneTableStructure(sourceTabla: string; destTablePath: string);begin MapInfo. do ('select * from ' + sourceTabla + ' into TempTableStructure where 1 <> 1'); MapInfo. do ('Commit Table TempTableStructure as "' + destTablePath + '"'); MapInfo. do ('Close table TempTableStructure');end;///@author: yzhou///@date: 2006.3.16///@description: 查询表中的记录数///@para tableName: tab表名///@return: 表中的记录数function TKDMapinfoProxy.QueryTableRecordCount(tableName: string): integer;begin//if tableName<>'' thenresult := StrToInt(MapInfo.Eval('tableinfo(' + tableName + ',' + Inttostr(TAB_INFO_NROWS) + ')'));end;///@author: yzhou///@date: 2006.3.16///@description: 查询表中的记录数///@para tableName: tab表名///@return: 表中的字段数function TKDMapinfoProxy.QueryTableColumnCount(tableName: string): integer;begin result := StrToInt(MapInfo.Eval('tableinfo("' + tableName + '",' + Inttostr(TAB_INFO_NCOLS) + ')'));end;///@author: yzhou///@date: 2006.3.16///@description: 查询表中指定索引的字段名///@para tableName: tab表名///@para colIndex: 字段索引///@return: 指定索引的字段名，为空表示未找到。function TKDMapinfoProxy.QueryTableColumnName(tableName: string; colIndex: integer): string;begin if (colIndex < 1) or (colIndex > self.QueryTableColumnCount(tableName)) then result := '' else result := Trim(MapInfo.Eval('ColumnInfo("' + tableName + '","col' + Inttostr(colIndex) + '",' + Inttostr(COL_INFO_NAME) + ')'));end;///@author: yzhou///@date: 2006.4.10///@description: 查询表中指定字段名的索引值///@para tableName: tab表名///@para colIndex: 字段名///@return: 指定字段名的索引值，未找到时返回0。function TKDMapinfoProxy.QueryTableColumnIndex(tableName: string; colName: string): integer;var i: integer; temp: string;begin result := 0; colName := UpperCase(Trim(colName)); for i := 1 to self.QueryTableColumnCount(tableName) do begin temp := Trim(self.QueryTableColumnName(tableName, i)); if UpperCase(temp) = colName then begin result := i; Exit; end; end;end;function TKDMapinfoProxy.QueryTableColumnType(tableName: string; colName: string): integer;var i: integer;begin result := -1; for i := 1 to QueryTableColumnCount(tableName) do begin if UpperCase(Trim(QueryTableColumnName(tableName, i))) = UpperCase(colName) then begin result := MapInfo.Eval('ColumnInfo(' + tableName + ', ' + colName + ', ' + Inttostr(COL_INFO_TYPE) + ')'); end; end;end;///@author: yzhou///@date: 2006.3.17///@description: 关闭已打开的表///@para tableName: tab表名procedure TKDMapinfoProxy.CloseTable(tableName: string);begin if TableExists(tableName) then MapInfo. do ('Close table ' + tableName);end;procedure TKDMapinfoProxy.SaveAllTable();var i, lCount: integer; slName: string;begin lCount := MapInfo.Eval('NumTables()'); for i := 1 to lCount do begin slName := MapInfo.Eval('TableInfo(' + Inttostr(i) + ', ' + Inttostr(TAB_INFO_NAME) + ')'); if not TableIsSaved(slName) then CommitTable(slName); end; self.CloseMapinfoTempTable();end;function TKDMapinfoProxy.TableIsSaved(slName: string): boolean;var tS: string;begin result := true; if TableExists(slName) then begin if Pos('_', slName) <= 0 then begin tS := MapInfo.Eval('TableInfo(' + slName + ', ' + Inttostr(TAB_INFO_EDITED) + ')'); if Trim(tS) = 'T' then result := false else result := true; end; end;end;///@author: yzhou///@date: 2006.3.27///@description: 删除指定层中的所有记录，并压缩表后提交///@para tableName: tab表名procedure TKDMapinfoProxy.ClearTable(tableName: string);begin if TableExists(tableName) and (self.QueryTableRecordCount(tableName) > 0) then begin self.DeleteTable(tableName); self.CommitTable(tableName); self.PackTable(tableName); end;end;///@author: yzhou///@date: 2006.4.2///@description: 删除指定层中的所有记录///@para tableName: tab表名procedure TKDMapinfoProxy.DeleteTable(tableName: string);begin if TableExists(tableName) then MapInfo. do ('delete from ' + tableName);end;procedure TKDMapinfoProxy.DropTable(tabName: string);begin if TableExists(tabName) then MapInfo. do ('Drop Table ' + tabName);end;procedure TKDMapinfoProxy.PackTable(tabName: string);begin if TableExists(tabName) then MapInfo. do ('Pack Table ' + tabName + ' Graphic Data');end;{///@author: yzhou///@date: 2006.3.17///@description: 打断将线层中的对象全部打断，并删除原来的对象///@para tableName: 被打断的tab表名///@para splitTableName: 用于打断操作的tab表名///@remark: (1)不支持自相交的线对象；/// (2)不支持对mapinfo中临时表的操作；/// (3)不能对两条线共线进行打断procedure TKDMapinfoProxy.SplitLineTable(tableName : string; splitTableName : string);var sourceNodesList, dirtyNodesList : TObjectList; pt : TKDPoint; recordCnt : integer; i, j, k : integer; rowId : string; newRowId : integer; mapinfoSql : string; SplitObjsId : TStringList; tagetMapinfoObj, resultMapinfoObj : string; whereClause : string;begin tagetMapinfoObj := 'aobj'; resultMapinfoObj := 'bobj'; if not TableExists(tableName) then begin raise Exception.Create('"' + tableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; try sourceNodesList := TObjectList.Create(); dirtyNodesList := TObjectList.Create(); SplitObjsId := TStringList.Create(); recordCnt := QueryTableRecordCount(tableName); newRowId := recordCnt + 1; for i := 1 to recordCnt do begin Mapinfo. do ('fetch rec ' + Inttostr(i) + ' from ' + tableName); rowId := Mapinfo.Eval(tableName + '.rowid'); //选择当前线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + rowId; mapinfoSql := mapinfoSql + ' into Selection'; Mapinfo.do (mapinfoSql); //设置为目标 Mapinfo.do (tagetMapinfoObj + ' = Selection.Obj'); Mapinfo.do ('Set Target On'); //查询节点 QueryNodesOfGeomety(tagetMapinfoObj, 1, sourceNodesList); //选取相交的线对象 if trim(tableName) = trim(splitTableName) then begin //选择自相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where rowid <> ' + rowId; mapinfoSql := mapinfoSql + ' and rowid <= ' + IntToStr(recordCnt); mapinfoSql := mapinfoSql + ' and Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end else begin //选择与其它层相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end; Mapinfo.do (mapinfoSql); if QuerySelctionCount() > 0 then begin Mapinfo.do ('Objects Overlay Into Target'); //加入交点后的源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + rowId; mapinfoSql := mapinfoSql + ' into Selection'; Mapinfo.do (mapinfoSql); Mapinfo.do (tagetMapinfoObj + ' = Selection.Obj'); //查询节点 QueryNodesOfGeomety(tagetMapinfoObj, 1, dirtyNodesList); if sourceNodesList.Count < dirtyNodesList.Count then begin //创建Pline对象 mapinfoSql := 'Create pline into variable ' + resultMapinfoObj + ' 0 '; Mapinfo.do (mapinfoSql); k := 0; j := 0; while (j < sourceNodesList.Count) and (k < dirtyNodesList.Count) do begin pt := TKDPoint(dirtyNodesList.Items[k]); if pt.IsEqual(TKDPoint(sourceNodesList.Items[j])) then begin //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; Mapinfo. do (mapinfoSql); inc(k); inc(j); end else begin //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; Mapinfo. do (mapinfoSql); //复制加入交点后的源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; Mapinfo. do (mapinfoSql); //修改为断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + IntToStr(newRowId); Mapinfo. do (mapinfoSql); inc(newRowId); //创建Pline对象 mapinfoSql := 'Create pline into variable ' + resultMapinfoObj + ' 0'; Mapinfo. do (mapinfoSql); //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; Mapinfo. do (mapinfoSql); inc(k); end; // end if pt.IsEqual(TKDPoint(sourceNodesList.Items[k])) end; // end while j < sourceNodesList.Count //复制源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; Mapinfo. do (mapinfoSql); //修改为断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + IntToStr(newRowId); Mapinfo. do (mapinfoSql); inc(newRowId); //记录被打断的源线对象 SplitObjsId.Add(rowId); end; // sourceNodesList.Count < dirtyNodesList.Coun end; // end if QuerySelctionCount() > 0 //清除为目标 Mapinfo.do ('Set Target Off'); end; //删除被打断的源线对象 if SplitObjsId.Count > 0 then begin for i := 0 to SplitObjsId.Count - 1 do begin mapinfoSql := 'delete from ' + tableName + ' where rowid = ' + SplitObjsId.Strings[i]; Mapinfo.do (mapinfoSql); end; end; //提交结果 self.SaveTable(tableName); finally begin sourceNodesList.Free(); dirtyNodesList.Free(); SplitObjsId.Free(); end; end;end;}///@author: yzhou///@date: 2006.3.17///@description: 查询mapinfo图形对象所包含的点。///@para tableName: mapinfo图形对象名称///@para partIndex: mapinfo图形对象的片断索引///@para nodeList: 存放返回的点的列表procedure TKDMapinfoProxy.QueryNodesOfGeomety(mapinfoGeo: string; partIndex: integer; nodeList: TObjectList);var pt: TKDPoint; i, nodesCnt: integer;begin nodesCnt := QueryNodeCount(mapinfoGeo, partIndex); nodeList.clear(); for i := 1 to nodesCnt do begin pt := self.QueryNodeOfGeomety(mapinfoGeo, partIndex, 1); nodeList.Add(pt); end;end;function TKDMapinfoProxy.QueryNodesOfGeomety(mapinfoGeo: string; partIndex: integer): TObjectList;var nodeList: TObjectList;begin nodeList := TObjectList.Create(); self.QueryNodesOfGeomety(mapinfoGeo, partIndex, nodeList); result := nodeList;end;///@author: yzhou///@date: 2006.3.17///@description: 查询mapinfo图形对象所包含的指定索引位置的点。///@para tableName: mapinfo图形对象名称///@para partIndex: mapinfo图形对象的片断索引///@para nodeIndex: 要查询点的索引位置function TKDMapinfoProxy.QueryNodeOfGeomety(mapinfoGeo: string; partIndex: integer; nodeIndex: integer): TKDPoint;var point: TKDPoint; floatX, floatY, intX, intY: double;begin CvtToPLine(mapinfoGeo); MapInfo. do ('xx=objectnodex(' + mapinfoGeo + ',' + Inttostr(partIndex) + ',' + Inttostr(nodeIndex) + ')'); MapInfo. do ('yy=objectnodey(' + mapinfoGeo + ',' + Inttostr(partIndex) + ',' + Inttostr(nodeIndex) + ')'); floatX := MapInfo.Eval('Format$((xx-fix(xx)),"##.######")'); floatY := MapInfo.Eval('Format$((yy-fix(yy)),"##.######")'); intX := MapInfo.Eval('fix(xx)'); intY := MapInfo.Eval('fix(yy)'); point := TKDPoint.Create(); point.X := intX + floatX; point.Y := intY + floatY; { point := TKDPoint.Create(); point.X := MapInfo.Eval('objectnodex(' + mapinfoGeo + ',' + Inttostr(partIndex) + ',' + Inttostr(nodeIndex) + ')'); point.Y := MapInfo.Eval('objectnodey(' + mapinfoGeo + ',' + Inttostr(partIndex) + ',' + Inttostr(nodeIndex) + ')'); } result := point;end;///@author: ma///@date: 2006.04.21///@description: 查询mapinfo图形对象所包含的片断数。///@para mapinfoGeo: mapinfo图形对象名称///@return: 片断个数function TKDMapinfoProxy.QueryPartsOfGeomety(mapinfoGeo: string): integer;var info: string;begin info := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPOLYGONS) + ')'); if (Trim(info) = '') then result := 1 else result := StrToInt(info);end;///@author: ma///@date: 2006.04.4.9///@description: 查询mapinfo图形对象的某个片断所包含的节点的个数。///@para mapinfoGeo: mapinfo图形对象名称///@para partIndex: mapinfo图形对象的片断索引///@return: 节点的个数function TKDMapinfoProxy.QueryNodeCount(mapinfoGeo: string; partIndex: integer): integer;var geoType: integer;begin geoType := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_TYPE) + ')'); case geoType of OBJ_TYPE_POINT: //point begin result := 1; end; OBJ_TYPE_TEXT: //text begin result := 0; end; OBJ_TYPE_PLINE, OBJ_TYPE_REGION: //pline regetion begin //try result := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPOLYGONS + partIndex) + ')'); //except //result := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPNTS) + ')'); //WarningBox(Inttostr(result)); //end; end; OBJ_TYPE_LINE, OBJ_TYPE_ARC: //Line, arc begin CvtToPLine(mapinfoGeo); result := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPOLYGONS + partIndex) + ')'); end; + OBJ_TYPE_ELLIPSE, OBJ_TYPE_RECT, OBJ_TYPE_ROUNDRECT: //ellipse, rectangle, amphitheatral begin CvtToRegion(mapinfoGeo); result := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPOLYGONS + partIndex) + ')'); end; end;end;procedure TKDMapinfoProxy.QueryNodePoint(mapinfoGeo: string; Polygon_num, node_num: integer; var X, Y: double);begin X := MapInfo.Eval('ObjectNodeX(' + mapinfoGeo + ', ' + Inttostr(Polygon_num) + ', ' + Inttostr(node_num) + ')'); Y := MapInfo.Eval('ObjectNodeY(' + mapinfoGeo + ', ' + Inttostr(Polygon_num) + ', ' + Inttostr(node_num) + ')');end;///@author: ma///@date: 2006.04.4.9///@description: 查询mapinfo图形对象所包含的节点的个数。///@para mapinfoGeo: mapinfo图形对象名称///@return: 节点的个数function TKDMapinfoProxy.QueryNodeCount(mapinfoGeo: string): integer;var geoType: integer;begin geoType := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_TYPE) + ')'); case geoType of OBJ_TYPE_POINT: //point begin result := 1; end; OBJ_TYPE_TEXT: //text begin result := 0; end; OBJ_TYPE_PLINE, OBJ_TYPE_REGION: //pline regetion begin result := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPNTS) + ')'); end; OBJ_TYPE_LINE, OBJ_TYPE_ARC: //Line, arc begin CvtToPLine(mapinfoGeo); result := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPNTS) + ')'); end; OBJ_TYPE_ELLIPSE, OBJ_TYPE_RECT, OBJ_TYPE_ROUNDRECT: //ellipse, rectangle, amphitheatral begin CvtToRegion(mapinfoGeo); result := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_NPNTS) + ')'); end; end; { geoType := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_TYPE) + ')'); case geoType of OBJ_TYPE_POINT: begin result := 1; //point Exit; end; OBJ_TYPE_TEXT: begin result := 0; //text Exit; end; OBJ_TYPE_PLINE, OBJ_TYPE_REGION: MapInfo. do ('Bobj = ' + mapinfoGeo + ''); //pline regetion OBJ_TYPE_LINE: MapInfo. do ('Bobj = ConvertToPline(' + mapinfoGeo + ')'); //Line OBJ_TYPE_ARC: MapInfo. do ('Bobj = ConvertToPline(' + mapinfoGeo + ')'); //arc OBJ_TYPE_ELLIPSE: MapInfo. do ('Bobj = ConvertToPline(' + mapinfoGeo + ')'); //ellipse OBJ_TYPE_RECT: MapInfo. do ('Bobj = ConvertToPline(' + mapinfoGeo + ')'); //rectangle OBJ_TYPE_ROUNDRECT: MapInfo. do ('Bobj = ConvertToPline(' + mapinfoGeo + ')'); //amphitheatral end; result := MapInfo.Eval('ObjectInfo(Bobj, ' + Inttostr(OBJ_INFO_NPNTS) + ')'); }end;///@author: ma///@date: 2006.04.4.9///@description: 将图形转换为折线对象。///@para mapinfoGeo: mapinfo图形对象名称procedure TKDMapinfoProxy.CvtToPLine(mapinfoGeo: string);var geoType: integer;begin geoType := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_TYPE) + ')'); if (geoType <> OBJ_TYPE_POINT) and (geoType <> OBJ_TYPE_TEXT) and (geoType <> OBJ_TYPE_PLINE) then MapInfo. do (mapinfoGeo + ' = ConvertToPline(' + mapinfoGeo + ')'); { if (geoType <> OBJ_TYPE_POINT) and (geoType <> OBJ_TYPE_TEXT) then raise Exception.Create('不能将点和文本对象转换成折线对象！'); if (geoType <> OBJ_TYPE_PLINE) then MapInfo. do (mapinfoGeo + ' = ConvertToPline(' + mapinfoGeo + ')'); }end;///@author: yzhou///@date: 2006.04.21///@description: 将图形转换为区域对象。///@para mapinfoGeo: mapinfo图形对象名称procedure TKDMapinfoProxy.CvtToRegion(mapinfoGeo: string);var geoType: integer;begin geoType := MapInfo.Eval('ObjectInfo(' + mapinfoGeo + ', ' + Inttostr(OBJ_INFO_TYPE) + ')'); if (geoType <> OBJ_TYPE_LINE) then CvtToPLine(mapinfoGeo); if (geoType <> OBJ_TYPE_POINT) and (geoType <> OBJ_TYPE_TEXT) then MapInfo. do (mapinfoGeo + ' = ConvertToRegion(' + mapinfoGeo + ')'); { if (geoType <> OBJ_TYPE_POINT) and (geoType <> OBJ_TYPE_TEXT) then raise Exception.Create('不能将点和文本对象转换成区域对象！'); if (geoType <> OBJ_TYPE_LINE) then CvtToPLine(mapinfoGeo); MapInfo. do (mapinfoGeo + ' = ConvertToPline(' + mapinfoGeo + ')'); }end;///@author: ma///@date: 2006.4.6///@description: 将线层中的线转节点反序///@para strTableName: 图层名称///@para rowID: 折线图形ID (注：不能是复合线)procedure TKDMapinfoProxy.LineAntitone(strTableName: string; RowID: integer);var sourceNodesList: TObjectList; mapinfoSql: string; pt: TKDPoint; pLastIndex: integer; k: integer;begin sourceNodesList := TObjectList.Create(); MapInfo. do ('select * from ' + strTableName + ' where object and rowid=' + Inttostr(RowID) + ' into Temp'); if self.QueryTableRecordCount('Temp') >= 1 then begin MapInfo. do ('fetch rec 1 from Temp'); MapInfo. do ('Aobj = Temp.Obj'); //查询节点 QueryNodesOfGeomety('Aobj', 1, sourceNodesList); pLastIndex := sourceNodesList.IndexOf(sourceNodesList.Last()); //Mapinfo.EVAL('ObjectInfo(Aobj, 20)')-1; k := 1; while (pLastIndex >= 0) do begin pt := TKDPoint(sourceNodesList.Items[pLastIndex]); //修改节点 mapinfoSql := 'Alter Object Aobj Node Set Position 1,' + Inttostr(k) + '(' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; MapInfo. do (mapinfoSql); pLastIndex := pLastIndex - 1; k := k + 1; end; MapInfo. do ('update Temp set obj=Aobj where rowid=' + Inttostr(RowID)); self.CommitTable(strTableName); end; self.CloseTable('Temp');end;function TKDMapinfoProxy.GetObjType(objName: string): integer;begin result := MapInfo.Eval('ObjectInfo(' + objName + ', ' + Inttostr(OBJ_INFO_TYPE) + ')');end;///@author: yx///@date:///@description: 折线转换为区域。///@para bm1: 源表///@para bm2: 目标表function TKDMapinfoProxy.ObjectCvtLine(bm1, bm2: string; ProBar: TProgressBar = nil): string;var i, RecNum: Longint;begin MapInfo. do ('SELECT * FROM ' + bm1); MapInfo. do ('SELECT * FROM ' + bm1 + ' INTO TmpTable'); // + ' WHERE 1<>1'); RecNum := self.QueryTableRecordCount(bm1); if ProBar <> nil then begin ProBar.Min := 0; ProBar.Max := RecNum; end; for i := 1 to RecNum do begin if ProBar <> nil then ProBar.Position := i; MapInfo. do ('Fetch Rec ' + Inttostr(i) + ' From TmpTable'); MapInfo. do ('Bobj = TmpTable.Obj'); //MapInfo. do ('Bobj = ConvertToPline(Bobj)'); CvtToPLine('BObj'); MapInfo. do ('Insert Into ' + bm2 + '(Obj) Values (Bobj)'); end; //MapInfo. do ('select * from TmpTable where Str$(Obj)="Line" or Str$(Obj)="Polyline" or Str$(Obj)="Arc" into selection'); //MapInfo. do ('insert into ' + bm2 + ' (obj) select obj from selection'); //MapInfo.do('select * from TmpTable where Str$(Obj)="Line" or Str$(Obj)="Polyline" or Str$(Obj)="Arc" into ' + bm2); result := '';end;///@author: yx///@date:///@description: 折线转换为区域。///@para bm1: 源表///@para bm2: 目标表function TKDMapinfoProxy.ObjectCvtPolygon(bm1, bm2: string): string;begin //MapInfo. do ('select * from ' + bm1); MapInfo. do ('select * from ' + bm1 + ' into TmpTable'); if self.QuerySelctionCount() < 1 then Exit; MapInfo. do ('Objects Enclose Into Table TmpTable'); MapInfo. do ('select * from TmpTable Where Str$(Obj)="Region" or Str$(Obj)="Ellpse" or Str$(Obj)="Rectangle" or Str$(Obj)="Rounded Rectangle" into selection'); MapInfo. do ('insert into ' + bm2 + ' (obj) select obj from selection'); self.CloseTable('TmpTable'); //MapInfo.do('select * from TmpTable Where Str$(Obj)="Region" or Str$(Obj)="Ellpse" or Str$(Obj)="Rectangle" or Str$(Obj)="Rounded Rectangle" into ' + bm2); //MapInfo.do('Rollback Table ' + bm1); result := '';end;///@author: yzhou///@date: 2006.06.02///@description: 用源层中的线构面放入目标层中。///@para sourceTable: 源表///@para destTable: 目标表procedure TKDMapinfoProxy.ObjectCvtPolygonEx(sourceTable, destTable: string);var mapinfoSql: string;begin mapinfoSql := 'select * from ' + sourceTable + ' into selection'; MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 0) then begin mapinfoSql := 'Objects Enclose Into Table ' + destTable; MapInfo. do (mapinfoSql); end;end;/// 功能：返回点、线、面、文本层中不属于本层的对象个数/// 作者：姚箫/// 日期：2006.3.29/// 参数说明：TableType ->检查类型///bm2->表名function TKDMapinfoProxy.CheckTableObject(TableType: TGrapiDataType; bm: string): integer;//var// RecNum: integer;begin if TableType = [gdtPoint] then MapInfo. do ('select * from ' + bm + ' Where Str$(Obj)<>"Point" into TmpTable') else if TableType = [gdtLine] then MapInfo. do ('select * from ' + bm + ' Where Str$(Obj)<>"Line" and Str$(Obj)<>"Polyline" and Str$(Obj)<>"Arc" into TmpTable') else if TableType = [gdtPolygon] then MapInfo. do ('select * from ' + bm + ' where Str$(Obj)<>"Region" and Str$(Obj)<>"Ellpse" and Str$(Obj)<>"Rectangle" and Str$(Obj)<>"Rounded Rectangle" into TmpTable') else if TableType = [gdtText] then MapInfo. do ('select * from ' + bm + ' Where Str$(Obj)<>"Text" into TmpTable'); //RecNum := MapInfo.Eval('TableInfo(TmpTable, 8)'); result := self.QueryTableRecordCount('TmpTable');end;///@author: yzhou///@date: 2006.3.21///@description: 提交对mapinfo表的修改并紧缩表///@para tableName: tab表名procedure TKDMapinfoProxy.SaveTable(tableName: string);begin if TableExists(tableName) then begin self.CommitTable(tableName); MapInfo. do ('Pack Table ' + tableName + ' Graphic Data'); end;end;///@author: yzhou///@date: 2006.3.27///@description: 提交对mapinfo表的修改///@para tableName: tab表名procedure TKDMapinfoProxy.CommitTable(tableName: string);begin if TableExists(tableName) then MapInfo. do ('commit table ' + tableName);end;///@author: yzhou///@date: 2006.4.5///@description: 放弃对mapinfo表的修改///@para tableName: tab表名procedure TKDMapinfoProxy.RollbackTable(tableName: string);begin if TableExists(tableName) then MapInfo. do ('Rollback table ' + tableName);end;///@author: yzhou///@date: 2006.4.25///@description: 将源表中除文本、点外的图形转换为折线放入目标表///@para srcTableName: 源表名///@para destTableName: 目标表名///@para whereClause: where条件///@fieldList: 要保留的属性字段列表（此参数要求两源表和目标表都包含此参数中的属性）procedure TKDMapinfoProxy.CopyTableDataEx(srcTableName: string; destTableName: string; whereClause: string; fieldList: string);var mapinfoSql: string;begin if QuerySourceTableName(srcTableName) = QuerySourceTableName(destTableName) then begin raise Exception.Create('不能对同一张表进行复制操作！' + srcTableName + ' <> ' + destTableName); Exit; end; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select *'; mapinfoSql := mapinfoSql + ' from ' + srcTableName; if Trim(whereClause) <> '' then mapinfoSql := mapinfoSql + ' where' + whereClause; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount() > 0 then begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + destTableName; mapinfoSql := mapinfoSql + ' (obj'; if Trim(fieldList) <> '' then mapinfoSql := mapinfoSql + ', ' + fieldList; mapinfoSql := mapinfoSql + ' )'; mapinfoSql := mapinfoSql + ' select obj'; if Trim(fieldList) <> '' then mapinfoSql := mapinfoSql + ', ' + fieldList; mapinfoSql := mapinfoSql + ' from selection'; MapInfo. do (mapinfoSql); end;end;///@author: yzhou///@date: 2006.3.22///@description: 根据条件复制源表中的数据到目标表///@para srcTableName: 源表///@para destTableName: 目标表///@para whereClause: where条件///@remark: 要求源表和目标表有相同的表结构procedure TKDMapinfoProxy.CopyTableData(srcTableName: string; destTableName: string; whereClause: string);var mapinfoSql: string;begin if QuerySourceTableName(srcTableName) = QuerySourceTableName(destTableName) then begin raise Exception.Create('不能对同一张表进行复制操作！' + srcTableName + ' <> ' + destTableName); Exit; end; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + srcTableName; if (Trim(whereClause) <> '') then mapinfoSql := mapinfoSql + ' where ' + whereClause; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount() > 0 then begin mapinfoSql := 'insert into ' + destTableName; mapinfoSql := mapinfoSql + ' select * from selection'; MapInfo. do (mapinfoSql); end; { srcCols := self.EmnuTableColumn(srcTableName, false); destCols := self.EmnuTableColumn(destTableName, false); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select ' + srcCols + ' from ' + srcTableName; mapinfoSql := mapinfoSql + whereClause; mapinfoSql := mapinfoSql + ' into selection'; Mapinfo.do(mapinfoSql); if self.QuerySelctionCount() > 0 then begin srcCols := self.EmnuTableColumn('selection', false); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + destTableName + ' (' + destCols + ')'; mapinfoSql := mapinfoSql + ' select ' + srcCols + ' from selection'; Mapinfo.do(mapinfoSql); end; }end;///@author: yzhou///@date: 2006.3.23///@description: 根据条件复制源表中的图形数据到目标表///@para srcTableName: 源表///@para destTableName: 目标表///@para whereClause: where条件procedure TKDMapinfoProxy.CopyTableGhraphData(srcTableName: string; destTableName: string; whereClause: string);var mapinfoSql: string;begin if QuerySourceTableName(srcTableName) = QuerySourceTableName(destTableName) then begin raise Exception.Create('不能对同一张表进行复制操作！' + srcTableName + ' <> ' + destTableName); Exit; end; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select obj from ' + srcTableName; if Trim(whereClause) <> '' then mapinfoSql := mapinfoSql + ' where' + whereClause; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount() > 0 then begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + destTableName + '(obj)'; mapinfoSql := mapinfoSql + ' select obj from selection'; MapInfo. do (mapinfoSql); end;end;///@author: yzhou///@date: 2006.3.23///@description: 用指定层中的对象擦除源表中的对象(内部擦除)///@para srcTableName: 源表名 (不能是临时表)///@para eraseTableName: 用于擦除操作的表名procedure TKDMapinfoProxy.EraseObjects(srcTableName: string; eraseTableName: string);var mapinfoSql: string; cols, Tempstr: string; i: integer;begin if QuerySourceTableName(srcTableName) = QuerySourceTableName(eraseTableName) then begin raise Exception.Create('不能对同一张表进行擦除操作！'); Exit; end; //源表上没有对象 if (self.QueryTableRecordCount(srcTableName) < 1) then Exit; //选择源对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + srcTableName; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); MapInfo. do ('Set Target On'); //擦除源对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + eraseTableName; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount() > 0 then begin //选择全部的列 for i := 1 to self.QueryTableColumnCount(srcTableName) do begin Tempstr := self.QueryTableColumnName(srcTableName, i); //MapInfo.Eval('ColumnInfo (' + srcTableName + ',"COL' + Inttostr(i) + '",1)'); cols := cols + Tempstr + '=' + Tempstr + ','; end; cols := LeftStr(cols, Length(cols) - 1); //擦除源对象 MapInfo. do ('Objects Erase Into Target Data ' + cols); MapInfo. do ('Set Target Off'); end;end;///@author: yzhou///@date: 2006.3.27///@description: 枚举指定表中的所有字段///@para tableName: tab表名///@para withName: 枚举时是否用表名作前缀function TKDMapinfoProxy.EmnuTableColumn(tableName: string; withName: boolean = true): string;var Columns: string; i: integer;begin for i := 1 to self.QueryTableColumnCount(tableName) do begin if withName then Columns := Columns + ',' + tableName + '.' + Trim(self.QueryTableColumnName(tableName, i)) {MapInfo.Eval('ColumnInfo("' + tableName + '","col' + Inttostr(i) + '",1)'))} else Columns := Columns + ',' + Trim(self.QueryTableColumnName(tableName, i)); //MapInfo.Eval('ColumnInfo("' + tableName + '","col' + Inttostr(i) + '",1)')) end; result := Copy(Columns, 2, Length(Columns));end;///@author: yzhou///@date: 2006.3.27///@description: 获取临时表的源表名///@para tableName: mapinfo临时表名///@return: 源tab表名function TKDMapinfoProxy.QuerySourceTableName(selectionName: string): string;var srcName: string;begin //srcName := trim(Mapinfo.EVAL('SelectionInfo(1)')); if (srcName = '') then srcName := selectionName; result := srcName;end;///@author: yzhou///@date: 2006.3.27///@description: 查询mapinfo当前选择集中的记录数///@return: 记录数function TKDMapinfoProxy.QuerySelctionTableName(): string;begin result := Trim(MapInfo.Eval('SelectionInfo(1)'));end;function TKDMapinfoProxy.QuerySelctionCount(): integer;begin result := StrToIntDef(MapInfo.Eval('SelectionInfo(' + Inttostr(SEL_INFO_NROWS) + ')'), -1);end;/// 功能：设置层编辑、浏览等属性/// 作者：姚箫/// 日期：2006.4.9/// 参数说明：tableName->表名///bUserBrowse->浏览///bUserMap ->///bUserClose ->关闭///bUserRemove ->移除///bUserDisplayMap->显示procedure TKDMapinfoProxy.SetTableEnable(tableName: string; bUserBrowse: boolean = true; bUserMap: boolean = true; bUserClose: boolean = true; bUserRemove: boolean = true; bUserDisplayMap: boolean = true);var sUserBrowse, sUserClose, sUserMap, sUserRemoveMap, sUserDisplayMap: string;begin sUserBrowse := 'ON'; sUserClose := sUserBrowse; sUserMap := sUserBrowse; sUserRemoveMap := sUserBrowse; sUserDisplayMap := sUserBrowse; if not bUserBrowse then sUserBrowse := 'OFF'; if not bUserMap then sUserClose := 'OFF'; if not bUserClose then sUserMap := 'OFF'; if not bUserRemove then sUserRemoveMap := 'OFF'; if not bUserDisplayMap then sUserDisplayMap := 'OFF'; MapInfo. do ('Set Table ' + tableName + ' UserBrowse ' + sUserBrowse + ' UserMap ' + sUserMap + ' UserClose ' + sUserClose + ' UserRemoveMap ' + sUserRemoveMap + ' UserDisplayMap ' + sUserDisplayMap)end;/// 功能：设置进度条是否显示/// 作者：姚箫/// 日期：2006.4.9/// 参数说明：bOn->进度条是否显示procedure TKDMapinfoProxy.SetProgressBar(bOn: boolean = true);begin if bOn then MapInfo. do ('Set ProgressBars On') else MapInfo. do ('Set ProgressBars Off');end;///@author: ma///@date: 2006.3.27///@description: 将多个相邻的面合并成一个对象///@para strYTableName: 提供原有区域的图层///@para strMBTableName: 目标图层procedure TKDMapinfoProxy.UnitePolygon(strYTableName: string; strMBTableName: string; CurWinID: integer);var colNum: integer; colStr: string; Tempstr: string; str1: string; recordCnt: integer; i, j, k: integer; RowID: string; newRowId: integer; mapinfoSql: string; whereClause: string; BgStr3: string; IntersectRow: integer; whereClause2: string; Notouch: integer; rowTest: integer;begin if not TableExists(strYTableName) then begin raise Exception.Create('"' + strYTableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; if not TableExists(strMBTableName) then begin raise Exception.Create('"' + strMBTableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; //原图层另存为 YTabTemp self.CloseTable('YTabTemp'); self.CloseTable('YTabTemp2'); self.CloseTable('YTabTemp3'); BgStr3 := 'C:/YTabTemp.TAB'; MapInfo. do ('Commit Table ' + strYTableName + ' As "' + BgStr3 + '"'); MapInfo. do ('Open Table "' + BgStr3 + '" AS YTabTemp'); MapInfo. do ('Add Map Window ' + Inttostr(CurWinID) + ' Layer YTabTemp'); MapInfo. do ('Alter Table YTabTemp (Add HandFlag Smallint)'); BgStr3 := 'C:/YTabTemp2.TAB'; MapInfo. do ('Commit Table ' + strYTableName + ' As "' + BgStr3 + '"'); MapInfo. do ('Open Table "' + BgStr3 + '" AS YTabTemp2'); MapInfo. do ('delete from YTabTemp2'); //清除中间层 BgStr3 := 'C:/YTabTemp3.TAB'; MapInfo. do ('Commit Table ' + strYTableName + ' As "' + BgStr3 + '"'); MapInfo. do ('Open Table "' + BgStr3 + '" AS YTabTemp3'); MapInfo. do ('delete from YTabTemp3'); //清除中间层 recordCnt := QueryTableRecordCount('YTabTemp'); //逐一判断面层对象 whereClause := ' where obj Intersects Aobj '; whereClause := whereClause + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select obj from YTabTemp '; mapinfoSql := mapinfoSql + whereClause; mapinfoSql := mapinfoSql + ' into Temp'; whereClause2 := ' where (YTabTemp.obj Intersects Aobj) and not(YTabTemp.obj Entirely Within Aobj) and YTabTemp.HandFlag<>1'; whereClause2 := whereClause2 + ' and (str$(YTabTemp.obj)<>"Point" and str$(YTabTemp.obj)<>"Text")'; for i := 1 to recordCnt do begin Notouch := 1; MapInfo. do ('fetch rec ' + Inttostr(i) + ' from YTabTemp'); MapInfo. do ('Aobj = YTabTemp.Obj'); RowID := MapInfo.Eval('YTabTemp.rowid'); MapInfo. do ('select * from YTabTemp3 where obj Intersects Aobj into Temp'); IntersectRow := self.QueryTableRecordCount('Temp'); //MapInfo.Eval('tableinfo(Temp,8)'); //判断是否是已经合并过的图形对象，如是则不在处理此图形 if IntersectRow = 1 then continue; MapInfo. do (mapinfoSql); IntersectRow := self.QueryTableRecordCount('Temp'); //MapInfo.Eval('tableinfo(Temp,8)'); //没有相邻的则直接插入到结果层，有则直接插入到结果层再合并,插入到结果层 if IntersectRow = 1 then begin MapInfo. do ('insert into ' + strMBTableName + '(obj) select obj from Temp'); MapInfo. do ('update YTabTemp set HandFlag=1 where rowid=' + RowID); end else if IntersectRow > 1 then begin MapInfo. do ('insert into YTabTemp2(obj) select obj from Temp'); while (Notouch = 1) do begin goMapinfoProxy.SaveTable('YTabTemp2'); MapInfo. do ('select * from YTabTemp2'); if self.QuerySelctionCount() > 1 then begin MapInfo. do ('Objects Combine'); end; self.SaveTable('YTabTemp2'); MapInfo. do ('Add Map Window ' + Inttostr(CurWinID) + ' Layer YTabTemp2'); MapInfo. do ('select obj from YTabTemp2'); MapInfo. do ('fetch rec 1 from YTabTemp2'); //MapInfo. do ('Aobj = YTabTemp2.Obj'); //Mapinfo.do ('select YTabTemp.obj from YTabTemp,YTabTemp2 '+ whereClause2 +' into Temp2'); MapInfo. do ('select * from YTabTemp' + whereClause2 + ' into Temp2'); MapInfo. do ('update Temp2 set HandFlag=1'); rowTest := self.QueryTableRecordCount('Temp2'); //MapInfo.Eval('tableinfo(Temp2,8)'); if rowTest = 0 then //连续的区域已搜索完毕 Notouch := 0; MapInfo. do ('insert into YTabTemp2(obj) select obj from Temp2'); MapInfo. do ('insert into ' + strMBTableName + '(obj) select obj from YTabTemp2'); MapInfo. do ('insert into YTabTemp3(obj) select obj from YTabTemp2'); MapInfo. do ('delete from YTabTemp2'); //清除中间层 end; end; //fenjie MapInfo. do ('commit Table ' + strMBTableName); self.Disaggregate(strMBTableName, false); self.CloseTable('Temp'); self.CloseTable('Temp2'); end; MapInfo. do ('Drop Table YTabTemp3'); MapInfo. do ('Drop Table YTabTemp2'); MapInfo. do ('Drop Table YTabTemp');end;///@author: yzhou///@date: 2006.9.22///@description: 线层分割面层///@para lineTable: 线图层///@para polyTable: 面图层procedure TKDMapinfoProxy.LineSplitPolyong_2(lineTable: string; polyTable: string);var tempTable: string; mapinfoSql: string; redCnt, newRowId, i, j, k: integer; RowID: string; colStr: string; str1, Tempstr, strFields: string; fPoint: TKDPoint; lPoint: TKDPoint;begin if not self.TableExists(lineTable) then begin raise Exception.Create('"' + lineTable + '"没有打开，请先打开后再做相关操作！'); Exit; end; if not self.TableExists(polyTable) then begin raise Exception.Create('"' + polyTable + '"没有打开，请先打开后再做相关操作！'); Exit; end; tempTable := 'ApplicationTempTable'; if (not self.TableExists(tempTable)) then begin self.CloneTableStructure(polyTable, AppPath + 'ApplicationTempTable.Tab'); self.OpenTable(AppPath + 'ApplicationTempTable.Tab', 'ApplicationTempTable'); end; //self.AddTable(tempTable, CurWinID); //MapInfo. do ('Set Map Window ' + Inttostr(CurWinID) + ' Layer ' + tempTable + ' Editable On'); MapInfo. do ('select * from ' + lineTable + ' where str$(obj)="Polyline" into Temp'); //循环线层 redCnt := self.QuerySelctionCount(); newRowId := redCnt + 1; for i := 1 to redCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from Temp'); MapInfo. do ('Aobj = Temp.Obj'); fPoint := goMapinfoProxy.QueryNodeOfGeomety('Aobj', 1, 1); lPoint := goMapinfoProxy.QueryNodeOfGeomety('Aobj', 1, goMapinfoProxy.QueryNodeCount('Aobj', 1)); mapinfoSql := ' select * from RegionTable'; mapinfoSql := mapinfoSql + ' where RegionTable.obj Intersects Aobj '; mapinfoSql := mapinfoSql + ' and (str$(RegionTable.obj)<>"Point" and str$(RegionTable.obj)<>"Text")'; mapinfoSql := mapinfoSql + ' and not (Buffer(RegionTable.obj, 100, -0.6, "M") contains CreatePoint(' + FloatToStr(fPoint.X) + ', ' + FloatToStr(fPoint.Y) + '))'; mapinfoSql := mapinfoSql + ' and not (Buffer(RegionTable.obj, 100, -0.6, "M") contains CreatePoint(' + FloatToStr(lPoint.X) + ', ' + FloatToStr(lPoint.Y) + '))'; mapinfoSql := mapinfoSql + ' and (ObjectLen(Overlap(RegionTable.obj, Aobj), "M") > 0.01)'; mapinfoSql := mapinfoSql + ' and int(objectinfo(IntersectNodes(Buffer(RegionTable.obj, 100, -0.6, "M"), Aobj, 7), 20)) > 1'; // mapinfoSql := mapinfoSql + ' and int(objectinfo(IntersectNodes(ExtractNodes(RegionTable.obj, 1, 1, 1, 1), Aobj, 7), 20)) > 1'; mapinfoSql := mapinfoSql + ' into tbp_temp_table'; mapinfoSql := StringReplace(mapinfoSql, 'RegionTable', polyTable, [rfReplaceAll]); MapInfo. do (mapinfoSql); for k := 1 to self.QuerySelctionCount() do begin MapInfo. do ('fetch rec ' + Inttostr(k) + ' from tbp_temp_table'); self.DeleteTable(tempTable); RowID := MapInfo.Eval('tbp_temp_table.rowid'); MapInfo. do ('Bobj = ConvertToPLine(tbp_temp_table.obj)'); MapInfo. do ('insert into ' + tempTable + ' (obj) values(Bobj)'); MapInfo. do ('insert into ' + tempTable + ' (obj) values(Aobj)'); //可能会变形（产生拓扑问题） self.AutoSnap(tempTable, 1E-2, 'm', ''); self.ObjectCvtPolygonEx(tempTable, tempTable); //Mapinfo. do ('select * from ' + tempTable + ' Objects Enclose Into Table' + tempTable); MapInfo. do ('select * from ' + tempTable + ' where str$(obj)="Polyline"'); MapInfo. do ('delete from selection'); for j := 1 to self.QueryTableColumnCount(tempTable) do begin str1 := self.QueryTableColumnName(tempTable, j); if (self.QueryTableColumnType(tempTable, str1) = COL_INFO_NAME) then Tempstr := Tempstr + str1 + '="' + MapInfo.Eval('tbp_temp_table.' + str1) + '",' else Tempstr := Tempstr + str1 + '=' + MapInfo.Eval('tbp_temp_table.' + str1) + ','; end; colStr := LeftStr(Tempstr, Length(Tempstr) - 1); MapInfo. do ('update ' + tempTable + ' set ' + colStr); MapInfo. do ('Bobj = tbp_temp_table.obj'); self.CopyTableData(tempTable, polyTable, ' (obj Intersects Bobj) and Area(Overlap(obj, Bobj), "sq m") > 0.1'); MapInfo. do ('select * from tbp_temp_table where rowid = ' + RowID); MapInfo. do ('delete from selection'); end; end; self.DropTable(tempTable);end;///@author: ma///@date: 2006.3.27///@description: 线层分割面层///@para strLineTableName: 线图层///@para strPolygonTableName: 面图层procedure TKDMapinfoProxy.LineSplitPolygon(strLineTableName: string; strPolygonTableName: string);var colNum: integer; i: integer; mapinfoSql: string; whereClause: string; colStr: string; str1, Tempstr: string; RowID: string; redCnt: integer; cutterId: integer;begin if not TableExists(strLineTableName) then begin raise Exception.Create('"' + strLineTableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; if not TableExists(strPolygonTableName) then begin raise Exception.Create('"' + strPolygonTableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; for i := 1 to self.QueryTableColumnCount(strPolygonTableName) do begin str1 := self.QueryTableColumnName(strPolygonTableName, i); Tempstr := Tempstr + str1 + '=' + str1 + ','; end; colStr := LeftStr(Tempstr, Length(Tempstr) - 1); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select obj from RegionTable'; mapinfoSql := mapinfoSql + ' where RegionTable.obj Intersects Aobj '; mapinfoSql := mapinfoSql + ' and (str$(RegionTable.obj)<>"Point" and str$(RegionTable.obj)<>"Text")'; mapinfoSql := mapinfoSql + ' and (ObjectLen(Overlap(RegionTable.obj, Aobj), "M") > 0.01)'; mapinfoSql := mapinfoSql + ' and int(objectinfo(IntersectNodes(ExtractNodes(RegionTable.obj, 1, 1, 1, 1), Aobj, 7), 20)) > 1'; mapinfoSql := mapinfoSql + ' into selection'; mapinfoSql := StringReplace(mapinfoSql, 'RegionTable', strPolygonTableName, [rfReplaceAll]); MapInfo. do ('select * from ' + strLineTableName + ' where str$(obj)="Polyline" into Temp'); //循环线层 redCnt := self.QuerySelctionCount(); for i := 1 to redCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from Temp'); MapInfo. do ('Aobj = Temp.Obj'); RowID := MapInfo.Eval('Temp.rowid'); MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 0) then begin MapInfo. do ('Set Target On'); MapInfo. do ('select obj from Temp where rowid=' + RowID + ' into selection'); MapInfo. do ('Create Cutter Into Target'); cutterId := self.QueryTableRecordCount(strPolygonTableName); MapInfo. do ('Objects Split Into Target Data ' + colStr); MapInfo. do ('delete from ' + strPolygonTableName + ' where rowid = ' + Inttostr(cutterId)); end; end; //分解对象 Disaggregate(strPolygonTableName, false); goMapinfoProxy.CloseTable('Temp');end;///@author: ma///@date: 2006.3.29///@description: 用源层中的对象擦除目标层中的对象，以参数传递的方式指出是内部还是外部擦除///@para strYTableName: 面图层(擦除图层)///@para strMBTableName: 目标层(被擦除图层)///@para bBosom: 默认檫除内部procedure TKDMapinfoProxy.EarsureObj(strYTableName: string; strMBTableName: string; bBosom: boolean = true);var whereClause: string; colNum: integer; i: integer; str1: string; Tempstr: string; colStr: string;begin colNum := self.QueryTableColumnCount(strMBTableName); for i := 1 to colNum do begin str1 := self.QueryTableColumnName(strMBTableName, i); Tempstr := Tempstr + str1 + '=' + str1 + ','; end; colStr := LeftStr(Tempstr, Length(Tempstr) - 1); whereClause := ' where str$(obj)<>"Line" and str$(obj)<>"Polyline" '; whereClause := whereClause + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; //选中要檫除的图层所有图形，设为目标 MapInfo. do ('select * from ' + strMBTableName); MapInfo. do ('Set Target On'); //选择檫除图形 MapInfo. do ('select * from ' + strYTableName + whereClause); if self.QuerySelctionCount() > 0 then begin //执行檫除，保存目标层 if bBosom then MapInfo. do ('Objects Erase Into Target Data ' + colStr) else MapInfo. do ('Objects Intersect Into Target Data ' + colStr); end; //分解 self.CommitTable(strMBTableName); self.Disaggregate(strMBTableName, false);end;///@author: yzhou///@date: 2006.10.08///@description: 检查一个层上是否有面相重合的情况///@para strTableName: 被检查的层///@para errorViewTable: 错误显示层///@para toleranceArea: 可容忍的重复部分的面积///@para units: 容差面积的单位///@return: 返回真则为有重面情况，反之。function TKDMapinfoProxy.CheckRepeatPolygon(checkedTable, errorViewTable : string; toleranceArea: double; units: string) : boolean;var mapinfoSql: string;begin self.ClearTable(errorViewTable); mapinfoSql := 'select * from ' + checkedTable + ' where str$(obj)="Region"'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount > 0 then begin try mapinfoSql := 'Objects Check From Selection Into Table ' + errorViewTable + ' Overlap Gap ' + FloatToStr(toleranceArea) + ' Units "' + units + '" Pen (1,2,0) Brush (2,16776960,0)'; MapInfo. do (mapinfoSql); except end; end; if self.QueryTableRecordCount(errorViewTable) > 0 then result := true else result := false;end;///@author: ma///@date: 2006.3.29///@description: 检查一个层上是否有面相离、相重合的情况///@para strTableName: 面图层///@para bIntersect: 检查标志///@para bBosom:返回真 则为有重合面(不包括共边)function TKDMapinfoProxy.CheckPolygonState(strTableName: string; var rowId : string ): boolean;var isOverLap: boolean; whereClause: string; mapinfoSql: string; objType: string; recordCnt: integer; i: integer; queryCnt : integer; test : double;begin if not TableExists(strTableName) then begin raise Exception.Create('"' + strTableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; whereClause := ' where obj Intersects Aobj and Area(Overlap(obj,Aobj), "sq m") > 0.1 '; whereClause := whereClause + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; recordCnt := QueryTableRecordCount(strTableName); isOverLap := false; for i := 1 to recordCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from ' + strTableName); rowId := MapInfo.Eval(strTableName + '.rowid'); MapInfo. do ('Aobj = ' + strTableName + '.Obj'); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select Area(Overlap(obj,Aobj), "sq m") "TT" from ' + strTableName; mapinfoSql := mapinfoSql + whereClause; mapinfoSql := mapinfoSql + ' and RowId <> ' + rowId; mapinfoSql := mapinfoSql + ' into Temp'; MapInfo. do (mapinfoSql); test := MapInfo.Eval('temp.TT'); queryCnt := self.QuerySelctionCount(); if queryCnt > 1 then begin isOverLap := true; Break; end; end; goMapinfoProxy.CloseTable('Temp'); result := isOverLap;end;///@author: ma///@date: 2006.3.29///@description: 将一个面层中小于指定面积的面与其相邻的大面进行合并///@para strTableName: 面图层///@para intArea: 给定的面积///注意：procedure TKDMapinfoProxy.UnitePiecePolygon(strTableName: string; intArea: double = 100);var recordCnt: integer; i: integer; whereClause: string; mapinfoSql: string; RowID: string; whereClause2: string; rowIdStr: string; BgStr3: string; oneOver: integer; colNum: integer; str1: string; Tempstr: string; colStr: string; handFlag: integer;begin if not TableExists(strTableName) then begin raise Exception.Create('"' + strTableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; goMapinfoProxy.CloseTable('YTabTemp'); goMapinfoProxy.CloseTable('YTabTemp3'); BgStr3 := 'C:/YTabTemp.TAB'; MapInfo. do ('Commit Table ' + strTableName + ' As "' + BgStr3 + '"'); MapInfo. do ('Open Table "' + BgStr3 + '" AS YTabTemp'); MapInfo. do ('delete from YTabTemp'); //清除中间层 BgStr3 := 'C:/YTabTemp3.TAB'; MapInfo. do ('Commit Table ' + strTableName + ' As "' + BgStr3 + '"'); MapInfo. do ('Open Table "' + BgStr3 + '" AS YTabTemp3'); MapInfo. do ('Alter Table YTabTemp3 (Add HandFlag Smallint)'); whereClause := ' where obj Intersects Aobj and proportionoverlap(Aobj,obj)<>1 and handFlag<>1 and'; whereClause := whereClause + ' Area(obj, "sq m") in any(select max(Area(obj, "sq m")) '; whereClause := whereClause + ' from YTabTemp3 where obj Intersects Aobj and proportionoverlap(Aobj,obj)<>1 and handFlag<>1 )'; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from YTabTemp3'; mapinfoSql := mapinfoSql + whereClause; mapinfoSql := mapinfoSql + ' into Temp2'; //找到面积小于100 的面集合 MapInfo. do ('select * from YTabTemp3 where HandFlag<>1 and Area(obj, "sq m")<' + FloatToStr(intArea) + ' into Temp'); recordCnt := MapInfo.Eval('tableinfo(Temp,8)'); if recordCnt = 0 then begin Exit; end; while (recordCnt <> 0) do begin for i := 1 to recordCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from Temp'); MapInfo. do ('Aobj = Temp.Obj'); RowID := MapInfo.Eval('Temp.rowid'); //找到与其相邻的最大的面 MapInfo. do (mapinfoSql); MapInfo. do ('insert into YTabTemp(Obj) values(Aobj)'); //插入到中间层 MapInfo. do ('update Temp set HandFlag=1 where rowid=' + RowID); if self.QueryTableRecordCount('Temp2') < 1 then continue else begin MapInfo. do ('insert into YTabTemp(obj) select obj from Temp2'); //插入到中间层 MapInfo. do ('update Temp2 set HandFlag=1'); // set hand flag //combin MapInfo. do ('select * from YTabTemp where object'); if self.QuerySelctionCount > 1 then MapInfo. do ('Objects Combine'); MapInfo. do ('insert into YTabTemp3(obj) select obj from YTabTemp'); MapInfo. do ('delete from YTabTemp'); end; end; MapInfo. do ('select * from YTabTemp3 where HandFlag<>1 and Area(obj, "sq m")<' + FloatToStr(intArea) + ' into Temp'); recordCnt := MapInfo.Eval('tableinfo(Temp,8)'); end; //删除重叠的小面 MapInfo. do ('commit table YTabTemp3'); MapInfo. do ('Pack Table YTabTemp3 Graphic Data'); MapInfo. do ('select * from YTabTemp3 into Temp'); recordCnt := MapInfo.Eval('tableinfo(Temp,8)'); for i := 1 to recordCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from Temp'); MapInfo. do ('Aobj = Temp.Obj'); MapInfo. do ('select * from YTabTemp3 where obj intersects Aobj and proportionoverlap(obj,Aobj)=1 and Area(obj, "sq m")<>(Area(Aobj, "sq m")) into Temp2'); if self.QueryTableRecordCount('Temp') >= 1 then MapInfo. do ('update Temp2 set HandFlag=2') end; MapInfo. do ('select * from YTabTemp3 where HandFlag=2 into Temp'); MapInfo. do ('Delete from Temp'); //更新结果层 MapInfo. do ('delete from ' + strTableName); MapInfo. do ('insert into ' + strTableName + '(obj) select obj from YTabTemp3'); MapInfo. do ('commit table ' + strTableName); Disaggregate(strTableName, false); MapInfo. do ('Drop Table YTabTemp3'); MapInfo. do ('Drop Table YTabTemp'); goMapinfoProxy.CloseTable('Temp'); goMapinfoProxy.CloseTable('Temp2');end;///@author: yzhou///@date: 2006.05.18///@description: 合并图层中指定的对象///@para strTableName: 表名称///@para whereClause: where条件procedure TKDMapinfoProxy.UonionObject(tableName: string; whereClause: string);var mapinfoSql: string; Tempstr, cols: string; i: integer;begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' Where Str$(obj) <> "Text"'; if (Trim(whereClause) <> '') then mapinfoSql := mapinfoSql + ' and ' + whereClause; mapinfoSql := mapinfoSql + ' into selection'; MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 1) then begin //选择全部的列 for i := 1 to self.QueryTableColumnCount(tableName) do begin Tempstr := self.QueryTableColumnName(tableName, i); cols := cols + Tempstr + '=' + Tempstr + ','; end; cols := LeftStr(cols, Length(cols) - 1); mapinfoSql := 'Objects Combine Data ' + cols; MapInfo. do (mapinfoSql); end;end;///@author: ma///@date: 2006.3.30///@description: 分解图形///@para strTableName: 图层名称procedure TKDMapinfoProxy.Disaggregate(strTableName: string; bAll: boolean);var colNum: integer; //列数 str1: string; //列名 Tempstr, ba: string; // colStr: string; // i: integer; //增量begin colNum := self.QueryTableColumnCount(strTableName); for i := 1 to colNum do begin str1 := self.QueryTableColumnName(strTableName, i); Tempstr := Tempstr + str1 + '=' + str1 + ','; end; if bAll then ba := 'All' else ba := ''; colStr := LeftStr(Tempstr, Length(Tempstr) - 1); // 分解 MapInfo. do ('Select * From ' + strTableName + ' Where Str$(obj) <> "Text" into selection'); if self.QuerySelctionCount > 0 then MapInfo. do ('Objects Disaggregate ' + ba + ' Into Table ' + strTableName + ' Data ' + colStr); self.CommitTable(strTableName);end;///@author: ma///@date: 2006.4.3///@description: 新添加的点是按一定范围检索，在此范围内不能有其他点、线，并且不能有图斑边界///@para strTableName: 图层名称///@para X,Y: 缓冲区中心///@para radius: 缓冲区半径///@para flag: 图层类型 1点、2线、3面///返回为真则存在不符和条件的function TKDMapinfoProxy.CheckTableObjec(X, Y: double; strTableName: string; radius: double; flag: integer): boolean;var mapinfoSql: string; whereClause: string;begin case flag of //点、线、面 1: whereClause := ' where obj Entirely Within Bobj '; 2: whereClause := ' where ObjectLen(overlap(obj,Bobj),"M" )>0 '; 3: whereClause := ' where proportionoverlap(obj,Bobj)>0 '; end; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + strTableName; mapinfoSql := mapinfoSql + whereClause; mapinfoSql := mapinfoSql + ' into Temp'; MapInfo. do ('Create Point Into Variable Aobj(' + FloatToStr(X) + ', ' + FloatToStr(Y) + ')'); MapInfo. do ('Bobj= Buffer( Aobj, 100, ' + FloatToStr(radius) + ', "m")'); MapInfo. do (mapinfoSql); if self.QueryTableRecordCount('Temp') >= 1 then result := true else result := false; goMapinfoProxy.CloseTable('Temp');end;{///@author: yzhou///@date: 2006.3.17///@description: 打断将线层中的对象全部打断，并删除原来的对象///@para tableName: 被打断的tab表名///@para splitTableName: 用于打断操作的tab表名///@remark: (1)不支持自相交的线对象；/// (2)不支持对mapinfo中临时表的操作；/// (3)不能对两条线共线进行打断procedure TKDMapinfoProxy.SplitLineTable(tableName: string; splitTableName: string);var sourceNodesList, dirtyNodesList, tempNodesList: TObjectList; pt: TKDPoint; recordCnt: integer; i, j, k: integer; rowID: string; newRowId: integer; mapinfoSql: string; SplitObjsId: TStringList; tagetMapinfoObj, resultMapinfoObj: string; whereClause: string;begin tagetMapinfoObj := 'aobj'; resultMapinfoObj := 'bobj'; if not TableExists(tableName) then begin raise Exception.Create('"' + tableName + '"没有打开，请先打开后再做相关操作！'); Exit; end; try sourceNodesList := TObjectList.Create(); dirtyNodesList := TObjectList.Create(); tempNodesList := TObjectList.Create(); SplitObjsId := TStringList.Create(); // recordCnt := QueryTableRecordCount(tableName); newRowId := recordCnt + 1; for i := 1 to recordCnt do begin MapInfo. do ('fetch rec ' + IntToStr(i) + ' from ' + tableName); rowID := MapInfo.Eval(tableName + '.rowid'); //选择当前线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + rowID; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); //设置为目标 MapInfo. do (tagetMapinfoObj + ' = Selection.Obj'); MapInfo. do ('Set Target On'); //查询节点 QueryNodesOfGeomety(tagetMapinfoObj, 1, sourceNodesList); //选取相交的线对象 if Trim(tableName) = Trim(splitTableName) then begin //选择自相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where rowid <> ' + rowID; mapinfoSql := mapinfoSql + ' and rowid <= ' + IntToStr(recordCnt); mapinfoSql := mapinfoSql + ' and Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end else begin //选择与其它层相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end; MapInfo. do (mapinfoSql); if QuerySelctionCount() > 0 then begin MapInfo. do ('Objects Overlay Into Target'); //加入交点后的源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + rowID; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); MapInfo. do (tagetMapinfoObj + ' = Selection.Obj'); //查询节点 QueryNodesOfGeomety(tagetMapinfoObj, 1, tempNodesList); if sourceNodesList.Count < tempNodesList.Count then begin //前后节点序不同时将dirtyNodes反向 pt := TKDPoint(tempNodesList.Items[tempNodesList.Count - 1]); if pt.IsEqual(TKDPoint(sourceNodesList.Items[0])) = true then begin dirtyNodesList.Clear(); j := tempNodesList.Count - 1; while j >= 0 do begin pt := TKDPoint(tempNodesList.Items[j]); dirtyNodesList.Add(pt); dec(j); end; end; //创建Pline对象 mapinfoSql := 'Create pline into variable ' + resultMapinfoObj + ' 0 '; MapInfo. do (mapinfoSql); k := 0; j := 0; while (j < sourceNodesList.Count) and (k < dirtyNodesList.Count) do begin pt := TKDPoint(dirtyNodesList.Items[k]); if pt.IsEqual(TKDPoint(sourceNodesList.Items[j])) = true then begin //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; MapInfo. do (mapinfoSql); inc(k); inc(j); end else begin //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; MapInfo. do (mapinfoSql); //防止只含有一个节点的伪线段 if (self.QueryNodeCount(resultMapinfoObj, 1)) > 1 then begin //复制加入交点后的源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; MapInfo. do (mapinfoSql); //修改为打断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + IntToStr(newRowId); MapInfo. do (mapinfoSql); end; inc(newRowId); //创建Pline对象 mapinfoSql := 'Create pline into variable ' + resultMapinfoObj + ' 0'; MapInfo. do (mapinfoSql); //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; MapInfo. do (mapinfoSql); inc(k); end; // end if pt.IsEqual(TKDPoint(sourceNodesList.Items[k])) end; // end while j < sourceNodesList.Count //防止只含有一个节点的伪线段 if (self.QueryNodeCount(resultMapinfoObj, 1)) > 1 then begin //复制源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; MapInfo. do (mapinfoSql); //修改为断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + IntToStr(newRowId); MapInfo. do (mapinfoSql); end; inc(newRowId); //记录被打断的源线对象 SplitObjsId.Add(rowID); end; // sourceNodesList.Count < dirtyNodesList.Coun end; // end if QuerySelctionCount() > 0 //清除为目标 MapInfo. do ('Set Target Off'); end; //删除被打断的源线对象 if SplitObjsId.Count > 0 then begin for i := 0 to SplitObjsId.Count - 1 do begin mapinfoSql := 'delete from ' + tableName + ' where rowid = ' + SplitObjsId.Strings[i]; MapInfo. do (mapinfoSql); end; end; //提交结果 self.SaveTable(tableName); finally begin sourceNodesList.Free(); dirtyNodesList.Free(); SplitObjsId.Free(); end; end;end;}///@author: yzhou///@date: 2006.4.10///@description: 打断将线层中的对象全部打断///@para lineTableName: 被打断的线表名///@para regionTableName: 区域对象表procedure TKDMapinfoProxy.SplitLineByRegion(lineTableName: string; regionTableName: string);var mapinfoSql: string; cols: string; Tempstr: string; i: integer;begin if (self.QueryTableRecordCount(lineTableName) < 1) or (self.QueryTableRecordCount(regionTableName) < 1) then Exit; //选择全部的列 for i := 1 to self.QueryTableColumnCount(lineTableName) do begin Tempstr := self.QueryTableColumnName(lineTableName, i); cols := cols + Tempstr + '=' + Tempstr + ','; end; cols := LeftStr(cols, Length(cols) - 1); //设置为目标 mapinfoSql := 'select * from ' + lineTableName + ' into selection'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount > 0 then begin MapInfo. do ('Set Target On'); //分割目标 mapinfoSql := 'select * from ' + regionTableName + ' into selection'; MapInfo. do (mapinfoSql); mapinfoSql := 'Objects Split Into Target Data ' + cols; MapInfo. do (mapinfoSql); MapInfo. do ('Set Target Off'); end; //分解分割后的对象 mapinfoSql := 'select * from ' + lineTableName + ' into selection'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount() > 0 then begin mapinfoSql := 'Objects Disaggregate Into Table ' + lineTableName + ' Data ' + cols; MapInfo. do (mapinfoSql); self.SaveTable(lineTableName); end;end;///@author: yzhou///@date: 2006.05.12///@description: 打断将线层中的对象全部打断，并删除原来的对象///@para tableName: 被打断的tab表名///@para splitTableName: 用于打断操作的tab表名///@remark: (1)不支持自相交的线对象；/// (2)不支持对mapinfo中临时表的操作；/// (3) 此函数用到了mapinfo中定义的变量'Aobj', 'Bobj'，在调用函数时会修改原'Aobj', 'Bobj'中的值/// (6) ***在海量数据下未通过测试procedure TKDMapinfoProxy.SplitLineTableEx(tableName: string; splitTableName: string);var mapinfoSql: string; tagetMapinfoObj, resultMapinfoObj: string; recordCnt, intersectCnt, newRowId: integer; intersectNodesList: TObjectList; RowID: string; i, j, k: integer; startPtIndex, endPtIndex: integer; spt, preSpt: TKDSegmentPoint; SplitObjsId: TStringList;begin SplitObjsId := TStringList.Create(); intersectNodesList := TObjectList.Create(); tagetMapinfoObj := 'aobj'; resultMapinfoObj := 'bobj'; recordCnt := QueryTableRecordCount(tableName); newRowId := recordCnt + 1; for i := 1 to recordCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from ' + tableName); RowID := MapInfo.Eval(tableName + '.rowid'); MapInfo. do (tagetMapinfoObj + ' = ' + tableName + '.obj'); //选取相交的线对象 if Trim(tableName) = Trim(splitTableName) then begin //选择自相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where rowid <> ' + RowID; mapinfoSql := mapinfoSql + ' and rowid <= ' + Inttostr(recordCnt); mapinfoSql := mapinfoSql + ' and Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end else begin //选择与其它层相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end; MapInfo. do (mapinfoSql); //获取交点 intersectNodesList.clear(); intersectCnt := self.QuerySelctionCount(); for j := 1 to intersectCnt do begin MapInfo. do ('fetch rec ' + Inttostr(j) + ' from Selection'); self.GetOrderIntersectNodes(tagetMapinfoObj, 'Selection.Obj', intersectNodesList); end; // end for j := 1 to intersectCnt startPtIndex := 1; endPtIndex := -1; for k := 0 to intersectNodesList.Count - 1 do begin spt := TKDSegmentPoint(intersectNodesList.Items[k]); //当前交点跟上一个交点不在同一弧段上 if (endPtIndex <> spt.SegmentInedex + 1) then begin endPtIndex := spt.SegmentInedex + 1; mapinfoSql := resultMapinfoObj + ' = ExtractNodes(' + tagetMapinfoObj + ', 1,' + Inttostr(startPtIndex) + ', ' + Inttostr(endPtIndex) + ', 0)'; MapInfo. do (mapinfoSql); mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Set Position 1, ' + Inttostr(endPtIndex - startPtIndex + 1) + ' (' + FloatToStr(spt.X) + ',' + FloatToStr(spt.Y) + ')'; MapInfo. do (mapinfoSql); //在当前交点的前面已有交点存在，应修改结果线段的第一个点为上一个交点 if (k > 0) then begin //获取上一个交点 preSpt := TKDSegmentPoint(intersectNodesList.Items[k - 1]); mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Set Position 1, 1' + ' (' + FloatToStr(preSpt.X) + ',' + FloatToStr(preSpt.Y) + ')'; MapInfo. do (mapinfoSql); end; startPtIndex := endPtIndex - 1; end //当前交点跟上一个交点在同一弧段上,应获取两个交点创建线段 else begin preSpt := TKDSegmentPoint(intersectNodesList.Items[k - 1]); mapinfoSql := 'Create pline into variable ' + resultMapinfoObj + ' 2' + ' (' + FloatToStr(preSpt.X) + ',' + FloatToStr(preSpt.Y) + ')' + ' (' + FloatToStr(spt.X) + ',' + FloatToStr(spt.Y) + ')'; MapInfo. do (mapinfoSql); end; // end if (endPtIndex <> spt.SegmentInedex + 1) then ///加入打断后的对象 //复制源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + RowID; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; MapInfo. do (mapinfoSql); //修改为断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + Inttostr(newRowId); MapInfo. do (mapinfoSql); inc(newRowId); end; // end for k := 0 to intersectNodesList.Count - 1 do if (intersectNodesList.Count > 0) then begin //获取最后一个交点和剩下的节点创建线段 spt := TKDSegmentPoint(intersectNodesList.Items[intersectNodesList.Count - 1]); mapinfoSql := resultMapinfoObj + ' = ExtractNodes(' + tagetMapinfoObj + ', 1,' + Inttostr(spt.SegmentInedex) + ', ' + Inttostr(self.QueryNodeCount(tagetMapinfoObj, 1)) + ', 0)'; MapInfo. do (mapinfoSql); mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Set Position 1, 1' + ' (' + FloatToStr(spt.X) + ',' + FloatToStr(spt.Y) + ')'; MapInfo. do (mapinfoSql); //复制源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + RowID; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; MapInfo. do (mapinfoSql); //修改为断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + Inttostr(newRowId); MapInfo. do (mapinfoSql); inc(newRowId); //标识需要被打断的线 SplitObjsId.Add(RowID); end; end; // end for //删除被打断的源线对象 if SplitObjsId.Count > 0 then begin for i := 0 to SplitObjsId.Count - 1 do begin mapinfoSql := 'delete from ' + tableName + ' where rowid = ' + SplitObjsId.Strings[i]; MapInfo. do (mapinfoSql); end; end;end;///@author: yzhou///@date: 2006.09.26procedure TKDMapinfoProxy.RepeatPoints(tagetTable: string; repeatTable: string);var mapinfoSql: string;begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tagetTable; mapinfoSql := mapinfoSql + ' where (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); if (self.QuerySelctionCount() > 0) then begin MapInfo. do ('Set Target On'); mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + repeatTable; mapinfoSql := mapinfoSql + ' where (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); MapInfo. do ('Objects Overlay Into Target'); MapInfo. do ('Set Target Off'); end;end;///@author: yzhou///@date: 2006.3.17///@description: 打断将线层中的对象全部打断，并删除原来的对象///@para tableName: 被打断的tab表名///@para splitTableName: 用于打断操作的tab表名///@remark: (1)不支持自相交的线对象；/// (2)不支持对mapinfo中临时表的操作；/// (3)不能对两条线共线进行打断/// (4)不能在两条线交叠的节点处进行打断/// (5) 此函数用到了mapinfo中定义的变量'Aobj', 'Bobj'，在调用函数时会修改原'Aobj', 'Bobj'中的值/// (6) ***未经过海量数据的测试(对2741条线进行打断)procedure TKDMapinfoProxy.SplitLineTable(tableName: string; splitTableName: string);var sourceNodesList, dirtyNodesList, tempNodesList: TObjectList; pt: TKDPoint; recordCnt: integer; i, j, k: integer; RowID: string; newRowId: integer; mapinfoSql: string; SplitObjsId: TStringList; tagetMapinfoObj, resultMapinfoObj: string; whereClause: string;begin tagetMapinfoObj := 'aobj'; resultMapinfoObj := 'bobj'; try sourceNodesList := TObjectList.Create(); dirtyNodesList := TObjectList.Create(); tempNodesList := TObjectList.Create(); SplitObjsId := TStringList.Create(); recordCnt := QueryTableRecordCount(tableName); newRowId := recordCnt + 1; for i := 1 to recordCnt do begin MapInfo. do ('fetch rec ' + Inttostr(i) + ' from ' + tableName); RowID := MapInfo.Eval(tableName + '.rowid'); //选择当前线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + RowID; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); //设置为目标 MapInfo. do (tagetMapinfoObj + ' = Selection.Obj'); MapInfo. do ('Set Target On'); //查询节点 QueryNodesOfGeomety(tagetMapinfoObj, 1, sourceNodesList); //选取相交的线对象 if Trim(tableName) = Trim(splitTableName) then begin //选择自相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where rowid <> ' + RowID; mapinfoSql := mapinfoSql + ' and rowid <= ' + Inttostr(recordCnt); mapinfoSql := mapinfoSql + ' and Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end else begin //选择与其它层相交 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + splitTableName; mapinfoSql := mapinfoSql + ' where Obj Intersects ' + tagetMapinfoObj; mapinfoSql := mapinfoSql + ' and (str$(obj)<>"Point" and str$(obj)<>"Text")'; mapinfoSql := mapinfoSql + ' into Selection'; end; MapInfo. do (mapinfoSql); if QuerySelctionCount() > 0 then begin MapInfo. do ('Objects Overlay Into Target'); //加入交点后的源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + tableName; mapinfoSql := mapinfoSql + ' where rowid = ' + RowID; mapinfoSql := mapinfoSql + ' into Selection'; MapInfo. do (mapinfoSql); MapInfo. do (tagetMapinfoObj + ' = Selection.Obj'); //查询节点 QueryNodesOfGeomety(tagetMapinfoObj, 1, tempNodesList); if sourceNodesList.Count < tempNodesList.Count then begin if dirtyNodesList.Count > 0 then dirtyNodesList.clear(); pt := TKDPoint(tempNodesList.Items[tempNodesList.Count - 1]); if pt.IsEqual(TKDPoint(sourceNodesList.Items[0])) = true then begin j := tempNodesList.Count - 1; while j >= 0 do begin pt := TKDPoint.Create(TKDPoint(tempNodesList.Items[j])); dirtyNodesList.Add(pt); dec(j); end; end else begin j := 0; while j < tempNodesList.Count do begin pt := TKDPoint.Create(TKDPoint(tempNodesList.Items[j])); dirtyNodesList.Add(pt); inc(j); end; end; //创建Pline对象 mapinfoSql := 'Create pline into variable ' + resultMapinfoObj + ' 0 '; MapInfo. do (mapinfoSql); k := 0; j := 0; while (j < sourceNodesList.Count) and (k < dirtyNodesList.Count) do begin pt := TKDPoint(dirtyNodesList.Items[k]); if pt.IsEqual(TKDPoint(sourceNodesList.Items[j])) = true then begin //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; MapInfo. do (mapinfoSql); inc(k); inc(j); end else begin //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; MapInfo. do (mapinfoSql); //防止只含有一个节点的伪线段 if (self.QueryNodeCount(resultMapinfoObj, 1)) > 1 then begin //复制加入交点后的源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; MapInfo. do (mapinfoSql); //修改为打断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + Inttostr(newRowId); MapInfo. do (mapinfoSql); end; inc(newRowId); //创建Pline对象 mapinfoSql := 'Create pline into variable ' + resultMapinfoObj + ' 0'; MapInfo. do (mapinfoSql); //加入节点 mapinfoSql := 'Alter Object ' + resultMapinfoObj + ' Node Add (' + FloatToStr(pt.X) + ',' + FloatToStr(pt.Y) + ')'; MapInfo. do (mapinfoSql); inc(k); end; // end if pt.IsEqual(TKDPoint(sourceNodesList.Items[k])) end; // end while j < sourceNodesList.Count //防止只含有一个节点的伪线段 if (self.QueryNodeCount(resultMapinfoObj, 1)) > 1 then begin //复制源线对象 mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + tableName; mapinfoSql := mapinfoSql + ' select * from Selection'; MapInfo. do (mapinfoSql); //修改为断后的线对象 mapinfoSql := 'update ' + tableName + ' set obj = ' + resultMapinfoObj + ' where rowid = ' + Inttostr(newRowId); MapInfo. do (mapinfoSql); end; inc(newRowId); //记录被打断的源线对象 SplitObjsId.Add(RowID); end; // sourceNodesList.Count < dirtyNodesList.Coun end; // end if QuerySelctionCount() > 0 //清除为目标 MapInfo. do ('Set Target Off'); end; //删除被打断的源线对象 if SplitObjsId.Count > 0 then begin for i := 0 to SplitObjsId.Count - 1 do begin mapinfoSql := 'delete from ' + tableName + ' where rowid = ' + SplitObjsId.Strings[i]; MapInfo. do (mapinfoSql); end; end; //提交结果 //self.SaveTable(tableName); finally begin sourceNodesList.Free(); tempNodesList.Free(); dirtyNodesList.Free(); SplitObjsId.Free(); end; end;end;/// 功能：设置线段方向显示/// 作者：姚箫/// 日期：2006.4.9/// 参数说明：LayerName->层名///bShow->显示线段方向procedure TKDMapinfoProxy.ShowArrows(LayerName: string; bShow: boolean = true);begin if bShow then MapInfo. do ('Set Map Layer ' + LayerName + ' Arrows On') else MapInfo. do ('Set Map Layer ' + LayerName + ' Arrows Off');end;///@author: ma///@date: 2006.4.10///@description: 将图层中出文本、点外的图形转换为 折线///@para strTableName: source 图层名///@para strTableName2: save as 图层名procedure TKDMapinfoProxy.CvtToPLineTable(strTableName: string; strTableName2: string; CurWinID: integer);var mapinfoSql: string; whereClause: string; baseTab: string;begin whereClause := ' where str$(obj)<>"Point" and str$(obj)<>"Text"'; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + strTableName; mapinfoSql := mapinfoSql + whereClause + ' into Temp'; // into Temp'; MapInfo. do (mapinfoSql); MapInfo. do ('Add Map Window ' + Inttostr(CurWinID) + ' Layer ' + strTableName2); MapInfo. do ('insert into ' + strTableName2 + '(obj) select obj from Temp'); MapInfo. do ('select * from ' + strTableName2 + ' into Temp'); if MapInfo.Eval('SelectionInfo(3)') <= 0 then Exit; baseTab := MapInfo.Eval('SelectionInfo(1)'); MapInfo. do ('Add Map Window ' + Inttostr(CurWinID) + ' Layer Temp'); MapInfo. do ('Set Map Window ' + Inttostr(CurWinID) + ' Layer Temp Editable On'); MapInfo.runmenucommand(1604); MapInfo.runmenucommand(1604); MapInfo. do ('Remove Map Window ' + Inttostr(CurWinID) + ' Layer ' + strTableName2 + ' Interactive'); self.CommitTable(strTableName2); self.CloseTable('Temp');end;///@author: yzhou///@date: 2006.4.25///@description: 将源表中除文本、点外的图形转换为折线放入目标表///@para srcTable: 源表名///@para destTable: 目标表名///@fieldList: 要保留的属性字段列表（此参数要求两源表和目标表都包含此参数中的属性）procedure TKDMapinfoProxy.CvtToPLineTableEx(srcTable: string; destTable: string; whereClause: string; fieldList: string);var mapinfoSql: string;begin if (self.QueryTableRecordCount(srcTable) < 1) then Exit; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + srcTable; mapinfoSql := mapinfoSql + ' where str$(obj)<>"Point" and str$(obj)<>"Text"'; if Trim(whereClause) <> '' then mapinfoSql := mapinfoSql + ' and ' + whereClause; mapinfoSql := mapinfoSql + ' into kd_temp_cvtLine_table'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount() > 0 then begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + destTable; mapinfoSql := mapinfoSql + ' (obj'; if Trim(fieldList) <> '' then mapinfoSql := mapinfoSql + ', ' + fieldList; mapinfoSql := mapinfoSql + ' )'; mapinfoSql := mapinfoSql + ' select ConvertToPline(obj)'; if Trim(fieldList) <> '' then mapinfoSql := mapinfoSql + ', ' + fieldList; mapinfoSql := mapinfoSql + ' from kd_temp_cvtLine_table'; MapInfo. do (mapinfoSql); self.CommitTable(destTable); end; self.CloseTable('kd_temp_cvtLine_table');end;///@author: yzhou///@date: 2006.4.24///@description: 将源表中除文本、点外的图形转换为折线放入目标表///@para srcTable: 源表名///@para destTable: 目标表名///@remark: 不对处理属性数据procedure TKDMapinfoProxy.CvtToPLineTable(srcTable: string; destTable: string; whereClause: string);var mapinfoSql: string;begin if (self.QueryTableRecordCount(srcTable) < 1) then Exit; mapinfoSql := ''; mapinfoSql := mapinfoSql + ' select * from ' + srcTable; mapinfoSql := mapinfoSql + ' where str$(obj)<>"Point" and str$(obj)<>"Text"'; if Trim(whereClause) <> '' then mapinfoSql := mapinfoSql + ' and ' + whereClause; mapinfoSql := mapinfoSql + ' into kd_temp_cvtLine_table'; MapInfo. do (mapinfoSql); if self.QuerySelctionCount() > 0 then begin mapinfoSql := ''; mapinfoSql := mapinfoSql + ' insert into ' + destTable; mapinfoSql := mapinfoSql + ' (obj)'; mapinfoSql := mapinfoSql + ' select ConvertToPline(obj) from kd_temp_cvtLine_table'; MapInfo. do (mapinfoSql); self.CommitTable(destTable); end; self.CloseTable('kd_temp_cvtLine_table');end;procedure TKDMapinfoProxy.DoMapinfoSql(sql: string);begin MapInfo. do (sql);end;end.
