Arcgis---画线

画线

List<ESRI.ArcGIS.Geometry.IPoint> linePoints = new List<ESRI.ArcGIS.Geometry.IPoint>();for (int i = 0; i < rayList.Count; i++){    // GeometryUtilities定义见下文    p = GeometryUtilities.ConstructPoint3D(list[i].X, list[i].Y, list[i].Z);  // list里存自己定义的类    linePoints.Add(p);                      }// GISMapApplication定义见下文IGraphicsLayer pGraphicsLayer = (GISMapApplication.Instance.Scene as IBasicMap).BasicGraphicsLayer;// DrawUtilities定义见下文DrawUtilities.DrawLine(pGraphicsLayer as IGraphicsContainer3D, linePoints);

GeometryUtilities部分代码

    public static class GeometryUtilities    {         private static object _missing = Type.Missing;        public static void MakeZAware(IGeometry geometry)        {            IZAware zAware = geometry as IZAware;            zAware.ZAware = true;        }        public static IPoint ConstructPoint3D(double x, double y, double z)        {            IPoint point = ConstructPoint2D(x, y);            point.Z = z;            MakeZAware(point as IGeometry);            return point;        }        public static IPoint ConstructPoint2D(double x, double y)        {            IPoint point = new PointClass();            point.X = x;            point.Y = y;            return point;        }    }

GISMapApplication部分代码

    public class GISMapApplication    {        #region 私有字段        private static GISMapApplication instance = null; //当前对象的实例        private AxSceneControl m_axSceneControl = null;        public AxSceneControl AxSceneControl        {            get { return m_axSceneControl; }            set { m_axSceneControl = value; }        }        private ISceneControl m_sceneControl = null;        private ISceneGraph m_SceneGraph = null;        private static System.Object m_syncObject = new System.Object();   // 同步对象        #endregion 私有字段        /// <summary>        /// 地图控件的引用        /// </summary>        public ISceneControl SceneControl        {            get { return m_sceneControl; }            set { m_sceneControl = value; }        }        /// <summary>        /// 图形接口        /// </summary>        public ISceneGraph SceneGraph        {            get { return m_SceneGraph; }        }        private IScene m_Scene = null;        /// <summary>        /// 场景        /// </summary>        public IScene Scene        {            get { return m_Scene; }            set { m_Scene = value; }        }        /// <summary>        /// 当前实例对象(单例模式)        /// </summary>        public static GISMapApplication Instance        {            get            {                if (instance == null)                {                    lock (m_syncObject)                    {                        if (instance == null)                        {                            instance = new GISMapApplication();                        }                    }                }                return instance;            }        }        /// <summary>        /// 初始化的一些方法        /// </summary>        public void Init(AxSceneControl axSceneControl)        {            if (axSceneControl != null)            {                this.m_axSceneControl = axSceneControl;                m_sceneControl = axSceneControl.Object as ISceneControl;                m_SceneGraph = m_sceneControl.SceneGraph;                m_Scene = m_sceneControl.Scene;            }        }    }

DrawUtilities部分代码

    public static class DrawUtilities    {        private static object _missing = Type.Missing;        public static void DrawLine(IGraphicsContainer3D lineGraphicsContainer3D, List<IPoint> listPoints)        {            IPointCollection linePointColl = new PolylineClass();            foreach (var point in listPoints)            {                linePointColl.AddPoint(point, ref _missing, ref _missing);            }            DrawUtilities.DrawLine(lineGraphicsContainer3D, linePointColl);        }        public static void DrawLine(IGraphicsContainer3D lineGraphicsContainer3D, IPointCollection linePointCollection)        {            const esriSimple3DLineStyle lineStyle = esriSimple3DLineStyle.esriS3DLSTube;            const double lineWidth = 1;            IColor lineColor = ColorUtilities.GetColor(255, 0, 0);            GeometryUtilities.MakeZAware(linePointCollection as IGeometry);// GraphicsLayer3DUtilities定义见下文 GraphicsLayer3DUtilities.AddLineToGraphicsLayer3D(lineGraphicsContainer3D, linePointCollection as IGeometry, lineColor, lineStyle, lineWidth);        }   }

GraphicsLayer3DUtilities部分代码

    public static class GraphicsLayer3DUtilities    {        public static void AddLineToGraphicsLayer3D(IGraphicsContainer3D graphicsContainer3D, IGeometry geometry, IColor color, esriSimple3DLineStyle style, double width)        {           //ElementUtilities定义见下文           graphicsContainer3D.AddElement(ElementUtilities.ConstructPolylineElement(geometry, color, style, width));        }    }

ElementUtilities部分代码

     public static class ElementUtilities    {        private const double HighResolution = 1;        private const esriUnits Units = esriUnits.esriUnknownUnits;        public static IElement ConstructPolylineElement(IGeometry geometry, IColor color, esriSimple3DLineStyle style, double width)        {            ISimpleLine3DSymbol simpleLine3DSymbol = new SimpleLine3DSymbolClass();            simpleLine3DSymbol.Style = style;            simpleLine3DSymbol.ResolutionQuality = HighResolution;            ILineSymbol lineSymbol = simpleLine3DSymbol as ILineSymbol;            lineSymbol.Color = color;            lineSymbol.Width = width;            ILine3DPlacement line3DPlacement = lineSymbol as ILine3DPlacement;            line3DPlacement.Units = Units;            ILineElement lineElement = new LineElementClass();            lineElement.Symbol = lineSymbol;            IElement element = lineElement as IElement;            element.Geometry = geometry;            return element;        }    }