AutoCAD开发7--坐标转换

Dim dx As Double

    Dim dy As Double

    Dim arf As Double

    Dim m As Double

　Dim r(0 To 3, 0 To 3) As Double

  ‘旋转矩阵

    r(0, 0) = m * Math.Cos(arf): r(0, 1) = -m * Math.Sin(arf): r(0, 2) = 0: r(0, 3) = dx

    r(1, 0) = m * Math.Sin(arf): r(1, 1) = m * Math.Cos(arf): r(1, 2) = 0: r(1, 3) = dy

    r(2, 0) = 0: r(2, 1) = 0: r(2, 2) = m: r(2, 3) = 0

    r(3, 0) = 0: r(3, 1) = 0: r(3, 2) = 0: r(3, 3) = 1

    Dim pSlct As AcadSelectionSet

    Set pSlct = CreateSelectionSet

    UserForm1.Hide

    pSlct.SelectOnScreen

    Dim pObject As Object

    For Each pObject In pSlct

        pObject.TransformBy (r)
    Next pObject

原文地址：https://www.cnblogs.com/jordonin/p/12028261.html