经过一点的实体的选择

davehuhudave

                Dim pc As New Point3dCollection
                pc.Add(p)
                Dim obc As ObjectId()
                Dim acTypValAr(0) As TypedValue
                acTypValAr.SetValue(New TypedValue(DxfCode.Start, "*Line"), 0)
                Dim acSelFtr As SelectionFilter = New SelectionFilter(acTypValAr)
                Dim acSSPrompt As PromptSelectionResult = ed.SelectFence(pc, acSelFtr)
                Dim acSSet As SelectionSet = acSSPrompt.Value
                If Not acSSet Is Nothing Then
                    obc = acSSet.GetObjectIds

                End if

 

好像SelectFence不支持经过一点的选择，该怎么弄呢？

雪山飞狐_lzh

你的线或多段线是端点在这个点？还是经过

 

davehuhudave

我本来想是经过这个点，如果是端点就在这个线上的话更好

davehuhudave

另外，上次问的经过两点的选择好像也有问题，检索结果有时候多有时候少

 Dim pc As New Point3dCollection
                pc.Add(p1)
                pc.Add(p2)
                Dim obc As ObjectId()
                Dim acTypValAr(0) As TypedValue
                acTypValAr.SetValue(New TypedValue(DxfCode.Start, "*Line"), 0)
                Dim acSelFtr As SelectionFilter = New SelectionFilter(acTypValAr)
                Dim acSSPrompt As PromptSelectionResult = ed.SelectFence(pc, acSelFtr)
                Dim acSSet As SelectionSet = acSSPrompt.Value
                If Not acSSet Is Nothing Then
                    obc = acSSet.GetObjectIds
                Else : Return False

雪山飞狐_lzh

端点在pt1

            ed.SelectAll(
                new SelectionFilter(
                    new TypedValue[]
                    {
                        new TypedValue(0, "*line"),
                        new TypedValue(-4, "<or"),
                        new TypedValue(10, pt1),
                        new TypedValue(11, pt1),
                        new TypedValue(-4, "or>")
                    }));

davehuhudave

版主写的意思是不是选择*Line，并且起点和其他点都是pt1啊？为啥用or呢？搞不懂。但是挺好玩，这种结合搞懂的话，

我也想写 ：选择块名为name,并且覆盖点pt1的块参照过滤

davehuhudave

？？？

雪山飞狐_lzh

你的问题一直问的都是不明不白的，想帮都没法帮，汗

把你的问题描述清楚

另外，不要同一个问题到处开新帖

davehuhudave

就是按照版主写的过滤语句，能不能过滤如下条件的：快名为brfName,且覆盖一点（或者说经过)p的块参照

雪山飞狐_lzh

不行

如果是插入点可以，经过不行