[求助]利用自定义规则在三维空间创建面

zhangxl04 · 发表于 2010-1-6 14:51:00

版上各位高手，现有一问题想向各位求助，我想在三维空间中利用自定义规则创建一个面，请问如何操作。代码如下：
wd.Geometry中哪些函数可以利用，谢谢大家了！
public class DrawOverrule : DrawableOverrule
      {
         public static DrawOverrule TheOverrule = new DrawOverrule();
         //显示重载
         public override bool WorldDraw(Drawable drawable, WorldDraw wd)
         {
            try
            {
                  if (!(drawable is Line))
                  {
                     return base.WorldDraw(drawable, wd);
                  }
                  Line wall = (Line)drawable;
                  ResultBuffer rb = ModelSpace.GetXRecordData(wall, "WallPropertyDic", "WallPropertyXRec");
                  Point3d point1 = (Point3d)rb.AsArray()[0].Value;
                  Point3d point2 = (Point3d)rb.AsArray()[1].Value;
                  Point3d point3 = (Point3d)rb.AsArray()[2].Value;
                  Point3d point4 = (Point3d)rb.AsArray()[3].Value;

                  //利用以上四个点在三维空间创建一个面
                  //创建思路：在XY平面创建一个面，然后以point1，point2为轴旋转90度
                  wd.Geometry.....
                  return base.WorldDraw(drawable, wd);
            }
            catch
            {
                  return false;
            }
         }
      }