前期在研究CAD的时候，想弄一个点击一个闭合区域内一点就获取这个区域的方法，后来尝试了使用boundary命令，可以实现。
现在把C#代码贴上来，希望对大家有用。
其中一个重要的环节就是调用CAD命令，这个借用了论坛里面一个高手的代码，不好意思忘了高手名字了。反正能够跳过boundary的回车控制。
现在把C#代码贴上来，希望对大家有用。
其中一个重要的环节就是调用CAD命令，这个借用了论坛里面一个高手的代码，不好意思忘了高手名字了。反正能够跳过boundary的回车控制。
效果如下：
代码如下：
[CommandMethod(
"
boundaryCAD
")]
public void BoundaryCAD()
{
PromptPointOptions pPointOptions = new PromptPointOptions( " \n 选择一个点 ");
PromptPointResult pPointResult = pDocument.Editor.GetPoint(pPointOptions);
if (pPointResult.Status == PromptStatus.OK)
{
Point3d point3d = pPointResult.Value;
InvokeArx.Command( true, " _Boundary ", point3d, " \0 ");
PromptSelectionResult pResult= pDocument.Editor.SelectLast();
SelectionSet pSelectionSet = pResult.Value;
using (Transaction tran = pDatabase.TransactionManager.StartTransaction())
{
foreach (ObjectId pObjectId in pSelectionSet.GetObjectIds())
{
Entity pEntity = tran.GetObject(pObjectId,OpenMode.ForWrite) as Entity;
if ((pEntity as Polyline) != null)
{
Polyline pPolyline = pEntity as Polyline;
pDocument.Editor.WriteMessage( " \n当前区域面积是: " + pPolyline.Area.ToString());
}
pEntity.Erase( true);
}
tran.Commit();
}
}
}
public void BoundaryCAD()
{
PromptPointOptions pPointOptions = new PromptPointOptions( " \n 选择一个点 ");
PromptPointResult pPointResult = pDocument.Editor.GetPoint(pPointOptions);
if (pPointResult.Status == PromptStatus.OK)
{
Point3d point3d = pPointResult.Value;
InvokeArx.Command( true, " _Boundary ", point3d, " \0 ");
PromptSelectionResult pResult= pDocument.Editor.SelectLast();
SelectionSet pSelectionSet = pResult.Value;
using (Transaction tran = pDatabase.TransactionManager.StartTransaction())
{
foreach (ObjectId pObjectId in pSelectionSet.GetObjectIds())
{
Entity pEntity = tran.GetObject(pObjectId,OpenMode.ForWrite) as Entity;
if ((pEntity as Polyline) != null)
{
Polyline pPolyline = pEntity as Polyline;
pDocument.Editor.WriteMessage( " \n当前区域面积是: " + pPolyline.Area.ToString());
}
pEntity.Erase( true);
}
tran.Commit();
}
}
}
