怎样取得一个封闭图形端点的坐标

cgchbsz

图形是多边形

要取各个顶点的坐标.

谢谢

王咣生

Polyline和LWPolyline有Coordinates属性,可以参看VBA例子:

Sub Example_Coordinates()
    ' This example creates a polyline. It then uses the Coordinates
    ' property to return all the coordinates  in the polyline. It then
    ' resets one of the vertices using the Coordinates property.
    
    Dim plineObj As AcadPolyline

    ' Create Polyline
    Dim points(5) As Double
    points(0) = 3: points(1) = 7: points(2) = 0
    points(3) = 9: points(4) = 2: points(5) = 0
    Set plineObj = ThisDrawing.ModelSpace.AddPolyline(points)
    ThisDrawing.Regen True

    ' Return all the coordinates of the polyline
    Dim retCoord As Variant
    retCoord = plineObj.Coordinates

    ' Display current coordinates for the first vertex
    MsgBox "The current coordinates of the second vertex are: " & points(3) & ", " & points(4) & ", " & points(5), vbInformation, "Coordinates Example"

    ' Modify the coordinate of the second vertex to (5,5,0). Note that in
    ' case of a lightweight Polyline, indices will be different because the points are 2D only.
    points(3) = 5
    points(4) = 5
    points(5) = 0
    plineObj.Coordinates = points

    ' Update display
    ThisDrawing.Regen True

    MsgBox "The new coordinates have been set to " & points(3) & ", " & points(4) & ", " & points(5), vbInformation, "Coordinates Example"
End Sub

兰州人

以上例子是经典例子。

cgchbsz

谢谢

不过

我的问题是

对已经画好的图形(边数不定,画法不定,是闭和的)

取出各个顶点坐标

目前用的

ThisDrawing.SendCommand "-Boundary" & vbCr & ptcao & "," & a(2) & vbCr & vbCr

其中"ptcao"和"a(2)"是其这个闭和区域中的一个坐标

但是无法创建

比较费解