private void WriteEllipseAsPolyline(Ellipse ellipse)
{
//we will draw the ellipse as a polyline, it is not supported in AutoCad12 dxf files
this.WriteCodePair(0, DxfObjectCode.Polyline);
this.WriteEntityCommonCodes(ellipse);
//closed polyline
this.WriteCodePair(70, 1);
//dummy point
this.WriteCodePair(10, 0.0);
this.WriteCodePair(20, 0.0);
this.WriteCodePair(30, ellipse.Center.Z);
this.WriteCodePair(39, ellipse.Thickness);
this.WriteCodePair(210, ellipse.Normal.X);
this.WriteCodePair(220, ellipse.Normal.Y);
this.WriteCodePair(230, ellipse.Normal.Z);
//Obsolete; formerly an “entities follow flag” (optional; ignore if present)
//but its needed to load the dxf file in AutoCAD
this.WriteCodePair(66, "1");
this.WriteXData(ellipse.XData);
List<Vector2d> points = ellipse.PolygonalVertexes(ellipse.CurvePoints);
foreach (Vector2d v in points)
{
this.WriteCodePair(0, DxfObjectCode.Vertex);
this.WriteCodePair(8, ellipse.Layer);
this.WriteCodePair(70, 0);
this.WriteCodePair(10, v.X);
this.WriteCodePair(20, v.Y);
}
this.WriteCodePair(0, StringCode.EndSequence);
}
