skyline自动化建模;DWG翻模

来源：互联网发布：数据库与网站编辑：程序博客网时间：2024/05/21 10:17

一、背景

自动化建模就是根据点位和姿态角，将模型添加至skyline之后，模型根据姿态角自动调整，形成一个完整的模型场景。

假设读者已经获得了点位数据。本文主要讲述如何计算姿态角和新建要素图层，设置属性信息，以及添加模型。

数据来源：DWG工程图，关于DWG的读数据问题，可以参见我前面的博客。

注:本博客代码中设计的自定义数据结构，请忽略。

二、正文

1.如何计算姿态角

skyline提供计算姿态角的方法:

        public void CalRollYawPitch(SGWorld66 mSG, Point3DF ptA, Point3DF ptB,out double Yaw, out double Roll,out double Pitch)        {            IPosition66 posA = mSG.Creator.CreatePosition(ptA.YL, ptA.XB, ptA.Z);            IPosition66 posB = mSG.Creator.CreatePosition(ptB.YL, ptB.XB, ptB.Z);            IPosition66 pos = posA.AimTo(posB);            Yaw = pos.Yaw;            Roll = pos.Roll;            Pitch = pos.Pitch;        }

2.新建要素图层

        public IFeatureLayer66 CreatePipeFeatureLayer(SGWorld66 mSG)        {            IFeatureLayer66 CylindresLayer = mSG.Creator.CreateNewFeatureLayer("管线图层", LayerGeometryType.LGT_POINT,

"FileName=model.shp;TEPlugName=OGR;", mSG.ProjectTree.RootID);            CylindresLayer.Streaming = false;            CylindresLayer.StreamStatus = StreamLayerStatus.SLS_NOT_STREAMED_LAYER;            CylindresLayer.Refresh();            // the pipes are always created in absolute            CylindresLayer.FeatureGroups.Point.SetProperty("Altitude Method", 10);   //不能设置为12-On Terrain            //CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("构件名称", AttributeTypeCode.AT_TEXT, 50);            CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("Yaw", AttributeTypeCode.AT_DOUBLE, 0, 20);            CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("Roll", AttributeTypeCode.AT_DOUBLE, 0, 20);            CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("Pitch", AttributeTypeCode.AT_DOUBLE, 0, 20);            CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("Texture", AttributeTypeCode.AT_TEXT, 1024);            //CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("Rotate", AttributeTypeCode.AT_DOUBLE, 100);            CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("RadiusX", AttributeTypeCode.AT_DOUBLE, 0);            CylindresLayer.DataSourceInfo.Attributes.CreateAttribute("Height", AttributeTypeCode.AT_DOUBLE, 0);            // style the feature group            CylindresLayer.FeatureGroups.Point.DisplayAs = ObjectTypeCode.OT_CYLINDER;            CylindresLayer.FeatureGroups.Point.SetProperty("Number of sides", 16);            CylindresLayer.FeatureGroups.Point.SetProperty("Line Opacity", 0);            CylindresLayer.FeatureGroups.Point.SetProperty("Fill Opacity", 100);            CylindresLayer.FeatureGroups.Point.SetProperty("Yaw", "[Yaw]");            CylindresLayer.FeatureGroups.Point.SetProperty("Roll", "[Roll]");            CylindresLayer.FeatureGroups.Point.SetProperty("Pitch", "[Pitch]");            CylindresLayer.FeatureGroups.Point.SetProperty("Texture File", "[Texture]");            //CylindresLayer.FeatureGroups.Point.SetProperty("Rotate", "[Rotate]");            CylindresLayer.FeatureGroups.Point.SetProperty("Radius X", "[RadiusX]");            CylindresLayer.FeatureGroups.Point.SetProperty("Height", "[Height]");            return CylindresLayer;        }

新建图层之后，随即绑定属性，这样当添加模型的时候，模型的属性信息自动关联。

3.添加模型

a.绘制管线为例：

CylindresLayer.FeatureGroups.Point.CreateFeature(new double[] { position.X, position.Y, position.Altitude }, position.Yaw + ";" +

position.Roll + ";" + position.Pitch + ";" + TextureFile  + ";" + Radius + ";" + Height);

b.添加dae模型或xpl模型为例：

        public void AddModel(string objname, LinePoint pt, string modelfile)        {            IPoint geometry = mSG.Creator.GeometryCreator.CreatePointGeometry(new double[]{pt.x,pt.y,pt.z});            string fid = mFlayer.FeatureGroups.Point.CreateFeature(geometry, objname + ";" + pt.ToDKString() + ";" + pt.LC.ToString() +

 ";" + pt.yaw.ToString() + ";" + pt.roll.ToString() + ";0;" + modelfile + ";geek;" + DateTime.Today.ToShortDateString() +

";http://www.baidu.com");                   }

三、效果

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