概要 - 平面に沿ってオブジェクトを鏡像化する(VBA/ActiveX)

Mirror3D メソッドを使用して、3 点で指定した鏡像平面に沿ってオブジェクトの鏡像を作成することができます。

3D で鏡像を作成する

次の例では、直方体をモデル空間に作成します。平面に沿って直方体の鏡像を作成し、鏡像を赤に色付けします。

Sub Ch8_MirrorABox3D()
    ' Create the box object
    Dim boxObj As Acad3DSolid
    Dim length As Double
    Dim width As Double
    Dim height As Double
    Dim center(0 To 2) As Double
    center(0) = 5#: center(1) = 5#: center(2) = 0
    length = 5#: width = 7: height = 10#

    ' Create the box (3DSolid) object in model space
    Set boxObj = ThisDrawing.ModelSpace. _
 AddBox(center, length, width, height)

    ' Define the mirroring plane with three points
    Dim mirrorPt1(0 To 2) As Double
    Dim mirrorPt2(0 To 2) As Double
    Dim mirrorPt3(0 To 2) As Double

    mirrorPt1(0) = 1.25: mirrorPt1(1) = 0: mirrorPt1(2) = 0
    mirrorPt2(0) = 1.25: mirrorPt2(1) = 2: mirrorPt2(2) = 0
    mirrorPt3(0) = 1.25: mirrorPt3(1) = 2: mirrorPt3(2) = 2

    ' Mirror the box
    Dim mirrorBoxObj As Acad3DSolid
    Set mirrorBoxObj = boxObj.Mirror3D _
 (mirrorPt1, mirrorPt2, mirrorPt3)
    mirrorBoxObj.Color = acRed
    ZoomAll
End Sub