public override void Draw(DatabaseToAcad block)
{
// ======================== 基本几何操作 ====================================
/// 点和向量的计算
Point3d structPt1 = new Point3d(0, -5000, 0);
Vector3d vect = new Vector3d(3, 9, 0); ///
Vector3d vectUnit = vect.GetNormal(); ///取单位向量
Vector3d vectPer = vectUnit.RotateBy(Math.PI * 0.5, Vector3d.ZAxis); ///向量的垂直，顺时针方向转90度
Point3d structPt2 = structPt1 + vectUnit.MultiplyBy(2000); ///点可以是点和向量相加
Point3d structPt3 = structPt1 + vectPer.MultiplyBy(2000);
/// 直线
TxLine line1 = new TxLine(new Point3d(0, 0, 0), new Point3d(500, 500, 0));
TxLine line2 = AcadAssist.GetOffsetLineToLeft(line1, 200); //线的偏移
TxLine line3 = new TxLine(new Point3d(100, -500, 0), new Point3d(100, 5000, 0));
TxLine line4 = new TxLine(new Point3d(1000, -500, 0), new Point3d(1000, 5000, 0));
List<Point3d> xpnt = AcadAssist.GetIntersectionPoints(line1, line3); /// 两条线求交
/// 圆弧
TxArc arc = new TxArc(new Point3d(), new Point3d(100, 100, 0), new Point3d(200, 0, 0));///三点确定圆弧
/// 圆弧转化为多义线
TxPolyline pl2 = AcadAssist.ConvertToTxPolyline(arc);
/// 多义线
TxPolyline pl1 = new TxPolyline();
pl1.AddVertexAt(0, new Point2d(0, 0), 0, 0, 0);
pl1.AddVertexAt(1, new Point2d(0, 500), 0, 0, 0);
pl1.AddVertexAt(2, new Point2d(500, 500), 0, 0, 0);
pl1.AddVertexAt(3, new Point2d(300, 100), 0.5, 0, 0); /// 这个参数不是0，则是曲线
pl1.AddVertexAt(4, new Point2d(0, 0), 0, 0, 0);
// ======================== 基本图形的运算 AcadAssist.() ====================================
/// 多义线裁剪和对称
TxPolyline pl3 = AcadAssist.TrimPolylineGetFront(pl2, new Point3d(500, 500, 0)); /// 裁剪，求线的前面部分
pl3 = AcadAssist.MillarTxPolyline(pl3, 0);
// ======================== 绘制图形 ====================================
/// -------- 绘制线 -----------
block.AddLine(new Point3d(0, 0, 0), new Point3d(500, 500, 0), CommonLayer.zerolayer);
/// --------绘制线 ----------------------- 图层说明 -- 构造有四个图层， 加入的对象颜色和线型都是随层的
block.AddLine(line1, CommonLayer.gz1layer); ///粗实线
block.AddLine(line2, CommonLayer.gz2layer); ///细实线
block.AddLine(line3, CommonLayer.gz3layer); ///粗虚线
block.AddLine(line4, CommonLayer.gz4layer); ///细虚线
/// --------- 绘制其它基本图形
block.AddCircle(new Point3d(0, 0, 0), 500, CommonLayer.zerolayer);
block.AddCurve(arc, CommonLayer.dimlayer);
//public void AddSectionLineHori(Point3d midPoint, string name, bool isTextUp, bool isArrowLeft); /// 剖断线
//public void AddSectionLineVert(Point3d midPoint, string name, bool isTextLeft, bool isArrowUpside); /// 剖断线
/// --------绘制线 ----------------------- 图层说明 -- 构造有四个图层， 加入的对象颜色和线型都是随层的
block.AddCurve(pl1);
block.AddCurve(pl2);
block.AddCurve(pl3);
///标注文字和线 [带指引线的文字]
block.AddTextDim(new Point3d(0, 500, 0), CommonSimbel.ConvertToDimStr(1000) + CommonSimbel.multipliSymbol + CommonSimbel.ConvertToDimStr(500), 2); /// 最后一个参数表示是哪个象限[1,2,3,4]
block.AddTextDimAngle(new Point3d(0, 1500, 0), "sss", new Point3d(2500, 5000, 0), 250);
///加阴影部分
TxPolyline plx = AcadAssist.CloneTxPolyline(pl1);
block.AddHatch(plx, 1, CommonLayer.gz1layer);
// -------- 绘制文字 ------
block.AddText(new Point3d(800, 800, 0), "Hello1");
block.AddText(new Point3d(900, 900, 0), "Hello2", block.style.RealTextHeigth, Math.PI * 0.25, CommonLayer.dimlayer, TxTextHorizontalMode.TextRight, TxTextVerticalMode.TextTop);
///加标题
block.AddTitle(new Point3d(500, 500, 0), "图块标题"); /// 应该考虑图块放在上面还是下面
/// CommonSimbel.IsDownTitle
///加折断线 ,有三种，单折断线，双折断线，圆柱折断线
//block.AddBreakLine()
// ======================== 标注 ====================================
//block.AddDimContinueAlign_AutoAdjust( ,);/// 自动向外调整位置
//block.AddDimension_UserTextPoint()/// 一般情况下文字位置自定处理的，但是也可以设定
// ======================== 绘制钢筋 ====================================
/// ------ 绘制点钢筋 ---------
double BHC = 30;
ISteelBar ist_dot = new ISteelBar("1", 12, SteelBarType.HRB400, "水平钢筋", 101);
SteelDotByLine st_dot = SteelFactory.CreateSteelDots(ist_dot, structPt1, structPt2, BHC);
block.AddSteelEntity(st_dot);
/// ------ 绘制线钢筋 ---------
ISteelBar ist_line = new ISteelBar("1", 12, SteelBarType.HRB400, "水平钢筋", 101);
SteelLines st_line = SteelFactory.CreateSteelParalLine(ist_line, structPt1, structPt3, BHC, 45, 2000);
block.AddSteelEntity(st_line);
}