使用该方法创建多面网格,每个面能够具有多个顶点。AddPolyfaceMesh 创建多面网格类似于创建矩形网格。要创建多面网格,请指定其所有顶点的坐标,然后通过输入该面的所有顶点的顶点号来定义每个面。创建多面网格时,可以将特定边设置为不可见,将其指定给图层,或为其赋予颜色。 要使边不可见,请输入边的顶点数作为负值。 创建多面网格此示例在模型空间中创建一个对象。更新了活动视口的查看方向,以便更轻松地显示网格的三维性质。PolyfaceMesh Sub Ch8_CreatePolyfaceMesh() 'Define the mesh vertices Dim vertex(0 To 17) As Double vertex(0) = 4: vertex(1) = 7: vertex(2) = 0 vertex(3) = 5: vertex(4) = 7: vertex(5) = 0 vertex(6) = 6: vertex(7) = 7: vertex(8) = 0 vertex(9) = 4: vertex(10) = 6: vertex(11) = 0 vertex(12) = 5: vertex(13) = 6: vertex(14) = 0 vertex(15) = 6: vertex(16) = 6: vertex(17) = 1 ' Define the face list Dim FaceList(0 To 7) As Integer FaceList(0) = 1 FaceList(1) = 2 FaceList(2) = 5 FaceList(3) = 4 FaceList(4) = 2 FaceList(5) = 3 FaceList(6) = 6 FaceList(7) = 5 ' Create the polyface mesh Dim polyfaceMeshObj As AcadPolyfaceMesh Set polyfaceMeshObj = ThisDrawing.ModelSpace.AddPolyfaceMesh _ (vertex, FaceList) ' Change the viewing direction of the viewport to ' better see the polyface mesh Dim NewDirection(0 To 2) As Double NewDirection(0) = -1 NewDirection(1) = -1 NewDirection(2) = 1 ThisDrawing.ActiveViewport.direction = NewDirection ThisDrawing.ActiveViewport = ThisDrawing.ActiveViewport ZoomAll End Sub |
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