public void CreateDimension()
{
// 创建要标注的图形---------------------------------------------
ModelSpace.AddLine(new Point3d(30, 20, 0), new Point3d(120, 20, 0));
ModelSpace.AddLine(new Point3d(120, 20, 0), new Point3d(120, 40, 0));
ModelSpace.AddLine(new Point3d(120, 40, 0), new Point3d(90, 80, 0));
ModelSpace.AddLine(new Point3d(90, 80, 0), new Point3d(30, 80, 0));
ModelSpace.AddArc(new Point3d(30, 50, 0), 30, ModelSpace.Rad2Ang(90), ModelSpace.Rad2Ang(270));
ModelSpace.AddCircle(new Point3d(30, 50, 0), 15);
ModelSpace.AddCircle(new Point3d(70, 50, 0), 10);
// 得到当前标注样式---------------------------------------------
Database db = HostApplicationServices.WorkingDatabase;
ObjectId curDimstyle = db.Dimstyle;
// (水平)转角标注-----------------------------------------------
ModelSpace.AddDimRotated(0, new Point3d(30, 20, 0), new Point3d(120, 20, 0), new Point3d(75, 10, 0));
// (垂直)转角标注-----------------------------------------------
ModelSpace.AddDimRotated(ModelSpace.Rad2Ang(90), new Point3d(120, 20, 0), new Point3d(120, 40, 0), new Point3d(130, 30, 0));
// 对齐标注、尺寸替代-------------------------------------------
ModelSpace.AddDimAligned(new Point3d(120, 40, 0), new Point3d(90, 80, 0), new Point3d(113, 66, 0), "50%%p0.2", curDimstyle);
// 半径标注-----------------------------------------------------
Point3d ptCen = new Point3d(30, 50, 0);
Point3d p2 = ModelSpace.PolarPoint(ptCen, ModelSpace.Rad2Ang(30), 15);
ModelSpace.AddDimRadial(ptCen, p2, 10);
// 直径标注-----------------------------------------------------
Point3d dcen = new Point3d(70, 50, 0);
Point3d ptChord1 = ModelSpace.PolarPoint(dcen, ModelSpace.Rad2Ang(45), 10);
Point3d ptChord2 = ModelSpace.PolarPoint(dcen, ModelSpace.Rad2Ang(-135), 10);
ModelSpace.AddDimDiametric(ptChord1, ptChord2, 0);
// 角度标注-----------------------------------------------------
Point3d angPtCen = new Point3d(120, 20, 0);
Point3d p5 = ModelSpace.PolarPoint(angPtCen, ModelSpace.Rad2Ang(135), 10);
ModelSpace.AddDimLineAngular(angPtCen, new Point3d(30, 20, 0), new Point3d(120, 40, 0), p5);
// 弧长标注-----------------------------------------------------
ModelSpace.AddDimArc(new Point3d(30, 50, 0), new Point3d(30, 20, 0), new Point3d(30, 80, 0), new Point3d(-10, 50, 0));
// 坐标标注-----------------------------------------------------
ModelSpace.AddDimOrdinate(new Point3d(70, 50, 0), new Point3d(70, 30, 0), new Point3d(90, 50, 0));
// 引线标注-----------------------------------------------------
Point3dCollection pts = new Point3dCollection();
pts.Add(new Point3d(90, 70, 0));
pts.Add(new Point3d(110, 80, 0));
pts.Add(new Point3d(120, 80, 0));
ModelSpace.AddLeader(pts, false);
// 添加引线标注的文字.
ModelSpace.AddMtext(new Point3d(120, 80, 0), "{\\L引线标注示例\\l}", curDimstyle, AttachmentPoint.BottomLeft, 2.5, 0);
// 尺寸公差标注--------------------------------------------------
ModelSpace.AddDimRotated(0, new Point3d(30, 80, 0), new Point3d(90, 80, 0), new Point3d(30, 90, 0), "60{\\H0.7x;\\S+0.026^-0.025;}", curDimstyle);
// 形位公差标注--------------------------------------------------
string dimText = "{\\fgdt;r}" + "%%v" + "{\\fgdt;n0.03}" + "%%v" + "B";
ModelSpace.AddTolerance(dimText, new Point3d(80, 100, 0), new Vector3d(0, 0, 1), new Vector3d(1, 0, 0));
// 为形位公差标注添加引线.
Point3dCollection ptss = new Point3dCollection();
ptss.Add(new Point3d(70, 80, 0));
ptss.Add(new Point3d(70, 100, 0));
ptss.Add(new Point3d(80, 100, 0));
ModelSpace.AddLeader(ptss, false);
}
