Real_King 发表于 2015-4-1 13:52:00

奇葩图！按acSelectionSetWindowPolygon在地块范围PL线内选不到实体！什么原因！？

奇葩图！按acSelectionSetWindowPolygon在地块范围PL线内选不到实体！什么原因！？
代码和图都付上，请大神指教！
Autodesk..Interop.AcadApplication AcadApp;
          Autodesk.AutoCAD.Interop.AcadDocument AcadDoc;
          AcadApp = (AcadApplication)System.Runtime.InteropServices.Marshal.GetActiveObject("AutoCAD.Application");
          AcadDoc = AcadApp.ActiveDocument;
      handle01:
          Microsoft.VisualBasic.Interaction.AppActivate(AcadApp.Caption);
          object returnObj, pickPoint;
          string pickPrompt = "选取Polyline对象!";
          AcadDoc.Utility.GetEntity(out returnObj, out pickPoint, pickPrompt);
          AcadObject returnCADObj = (AcadObject)returnObj;
          if (returnCADObj.ObjectName != "AcDbPolyline") goto handle01;
          AcadLWPolyline returnLWPolyline = (AcadLWPolyline)returnCADObj;
          if (!returnLWPolyline.Closed)
          {
            MessageBox.Show("选取的多段线没有闭合！");
            goto handle01;
          }
          Double[] selectionEdgePoints, LWPolylineCoords;
          LWPolylineCoords = (Double[])returnLWPolyline.Coordinates;
          int i;
          selectionEdgePoints = new Double;
          for (i = 0; i

**** Hidden Message *****

雪山飞狐_lzh 发表于 2015-4-1 18:09:00

右边那条线应该是重线

Real_King 发表于 2015-4-1 20:42:00


找到了原因，重复点的缘故
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