// 三角形の面積 3D対応
public static double TriangleArea(CadFigure fig)
{
return(CadMath.TriangleArea(
fig.GetPointAt(0).vector,
fig.GetPointAt(1).vector,
fig.GetPointAt(2).vector
));
}
// 三角形で設定
public void set(Vector3d p0, Vector3d p1, Vector3d p2)
{
Area = CadMath.TriangleArea(p0, p1, p2);
Point = CadMath.TriangleCentroid(p0, p1, p2);
}
