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.AutoCAD.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 < LWPolylineCoords.Length / 2; i++)
{
selectionEdgePoints = LWPolylineCoords;
selectionEdgePoints = LWPolylineCoords;
selectionEdgePoints = 0;
}
AcadSelectionSet mySelectionSet;
mySelectionSet = AcadDoc.SelectionSets.Add("NewSelectionSet06");
Int16[] FilterType = new Int16;
object[] FilterData = new object;
FilterType = 0;
FilterData = "*";
mySelectionSet.SelectByPolygon(AcSelect.acSelectionSetWindowPolygon, selectionEdgePoints,
FilterType, FilterData);
MessageBox.Show("范围内图形对象个数为：" + mySelectionSet.Count.ToString());
AcadDoc.SelectionSets.Item("NewSelectionSet06").Delete();
居然选不到实体！
右边那条线应该是重线 雪山飞狐_lzh 发表于 2015-4-1 18:09 static/image/common/back.gif
右边那条线应该是重线
找到了原因，重复点的缘故
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