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求不规则多边形面域的程序。

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发表于 2014-10-25 16:32 | 显示全部楼层 |阅读模式
Public Function Updateregon()
   Dim p(7) As Double
   Dim lwpolyObj As AcadLWPolyline
   p(0) = 0.8: p(1) = 0
   p(2) = 1.3: p(3) = 1.1
   p(4) = 0.5:   p(5) = 1.1
   p(6) = 0.5: p(7) = 0
   Set lwpolyObj = ThisDrawing.ModelSpace.AddLightWeightPolyline(p)
   lwpolyObj.Closed = True
'余下如下把lwpolyObj生成一个面域?请教

End Function

发表于 2014-10-25 17:32 | 显示全部楼层
  1. Public Function Updateregon()
  2.    Dim p(7) As Double
  3.    Dim lwpolyObj As AcadLWPolyline
  4.    p(0) = 0.8: p(1) = 0
  5.    p(2) = 1.3: p(3) = 1.1
  6.    p(4) = 0.5:   p(5) = 1.1
  7.    p(6) = 0.5: p(7) = 0
  8.    Set lwpolyObj = ThisDrawing.ModelSpace.AddLightWeightPolyline(p)
  9.    lwpolyObj.Closed = True
  10.     '余下如下把lwpolyObj生成一个面域?请教
  11.     Dim curves(0) As AcadEntity

  12.     Set curves(0) = lwpolyObj
  13.    
  14.       
  15.     ' 创建面域
  16.     Dim regionObj As Variant
  17.     regionObj = ThisDrawing.ModelSpace.AddRegion(curves)
  18.     ZoomAll

  19. End Function
 楼主| 发表于 2014-10-26 11:08 | 显示全部楼层
zzyong00 发表于 2014-10-25 17:32

多谢高手,请继续赐教。
实现这个,我的问题就解决了。下一步把这几个数据搞到窗体中去折腾一下。
Sub bb()
   Dim p(7) As Double
   Dim lwpolyObj As AcadLWPolyline
   p(0) = 0.8: p(1) = 0
   p(2) = 1.3: p(3) = 2.1
   p(4) = 0.5:   p(5) = 2.1
   p(6) = 0#: p(7) = 0.3
   Set lwpolyObj = ThisDrawing.ModelSpace.AddLightWeightPolyline(p)
   lwpolyObj.Closed = True
    Dim curves(0) As AcadEntity
    Set curves(0) = lwpolyObj
    Dim regionObj(0) As Variant
    regionObj(0) = ThisDrawing.ModelSpace.AddRegion(curves)
    '改变其图层及颜色,并求x质心
    Dim reg As AcadRegion
    Set reg = regionObj(0)  '为何转化不成功?或者直接用
    reg.Layer = "MMM"
    reg.color = acRed
    msbox "x质心为:" & reg.Centroid(0)
  End Sub
发表于 2014-10-26 15:15 | 显示全部楼层
ThisDrawing.ModelSpace.AddRegion(curves) 返回数组!
Set reg = regionObj(0)(0)'试
 楼主| 发表于 2014-10-26 15:50 | 显示全部楼层
谢谢了。大致明白意思了。
个数组,还以为Variant是任一。
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