//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
writer.Write(0, "POINT");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbPoint");
writer.Write(10, Point.X);
writer.Write(20, Point.Y);
writer.Write(30, 0.0);
}
//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
writer.Write(0, "LINE");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbLine");
writer.Write(10, StartPoint.X);
writer.Write(20, StartPoint.Y);
writer.Write(30, 0.0);
writer.Write(11, EndPoint.X);
writer.Write(21, EndPoint.Y);
writer.Write(31, 0.0);
}
//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
if (writer.Version < DxfVersion.AC1012)
{
return;
}
writer.Write(0, "SPLINE");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbSpline");
writer.Write(210, 0.0); // Plane normal vector
writer.Write(220, 0.0);
writer.Write(230, 1.0);
writer.Write(70, (int)Flags.Added(SplineFlags.IsPlanar));
writer.Write(71, Degree);
writer.Write(72, Knots.Length);
writer.Write(73, ControlPoints.Length);
writer.Write(74, 0); // Number of fit points
foreach (var knot in Knots)
{
writer.Write(40, knot);
}
foreach (var point in ControlPoints)
{
writer.Write(10, point.X);
writer.Write(20, point.Y);
writer.Write(30, 0.0);
}
bool saveWeights = Weights?.Any(w => w.IsEqual(1.0, 0.0001)) ?? false;
if (saveWeights)
{
foreach (var weight in Weights)
{
writer.Write(41, weight);
}
}
}
//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
// LWPOLYLINE supported by AC1012 or later
if (writer.Version >= DxfVersion.AC1012)
{
writer.Write(0, "LWPOLYLINE");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbPolyline");
writer.Write(90, Points.Length);
writer.Write(70, IsClosed ? 1 : 0);
foreach (var point in Points)
{
writer.Write(10, point.X);
writer.Write(20, point.Y);
writer.Write(30, 0.0);
}
}
else
{
// Version only for AC1009
writer.Write(0, "POLYLINE");
writer.WriteHandle();
writer.Write(8, LayerName);
writer.Write(66, 1);
writer.Write(10, 0.0);
writer.Write(20, 0.0);
writer.Write(30, 0.0);
writer.Write(70, IsClosed ? 1 : 0);
foreach (var point in Points)
{
writer.Write(0, "VERTEX");
writer.WriteHandle();
writer.Write(8, LayerName);
writer.Write(10, point.X);
writer.Write(20, point.Y);
writer.Write(30, 0.0);
}
writer.Write(0, "SEQEND");
}
}
//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
writer.Write(0, IsArc ? "ARC" : "CIRCLE");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbCircle");
writer.Write(10, CenterPoint.X);
writer.Write(20, CenterPoint.Y);
writer.Write(30, 0.0);
writer.Write(40, Radius);
if (IsArc)
{
writer.WriteSubclass("AcDbArc");
writer.Write(50, StartAngle);
writer.Write(51, EndAngle);
}
}
//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
writer.Write(0, "TEXT");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbText");
writer.Write(10, Position.X);
writer.Write(20, Position.Y);
writer.Write(30, 0.0);
writer.Write(40, TextHeight);
writer.Write(1, Text);
if (TextRotation != 0.0)
{
writer.Write(50, Maths.NormalizeAngleRad(TextRotation).ToDeg());
}
writer.WriteSubclass("AcDbText");
}
//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
if (writer.Version < DxfVersion.AC1012)
{
return;
}
writer.Write(0, "ELLIPSE");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbEllipse");
writer.Write(10, CenterPoint.X);
writer.Write(20, CenterPoint.Y);
writer.Write(30, 0.0);
writer.Write(11, MajorAxisPointOffset.X);
writer.Write(21, MajorAxisPointOffset.Y);
writer.Write(31, 0.0);
writer.Write(40, Ratio);
writer.Write(41, StartParameter);
writer.Write(42, EndParameter);
}
//--------------------------------------------------------------------------------------------------
internal override void Write(DxfWriter writer)
{
writer.Write(0, "DIMENSION");
writer.WriteHandle();
writer.WriteSubclass("AcDbEntity");
writer.Write(8, LayerName);
writer.WriteSubclass("AcDbDimension");
writer.Write(2, BlockName);
writer.Write(10, RefPoint0.X);
writer.Write(20, RefPoint0.Y);
writer.Write(30, 0.0);
writer.Write(11, RefPoint1E.X);
writer.Write(21, RefPoint1E.Y);
writer.Write(31, 0.0);
writer.Write(70, (int)DimensionType + 32);
writer.Write(53, Rotation);
if (!Text.IsNullOrEmpty())
{
writer.Write(1, Text);
}
writer.Write(3, "Standard");
if (writer.Version >= DxfVersion.AC1012)
{
writer.Write(71, 5); // Attachment point: Middle center
}
if (DimensionType is Type.Linear or Type.Aligned)
{
writer.WriteSubclass("AcDbAlignedDimension");
writer.Write(13, RefPoint3.X);
writer.Write(23, RefPoint3.Y);
writer.Write(33, 0.0);
writer.Write(14, RefPoint4.X);
writer.Write(24, RefPoint4.Y);
writer.Write(34, 0.0);
}
if (DimensionType is Type.Angular3Point)
{
writer.WriteSubclass("AcDb3PointAngularDimension");
writer.Write(13, RefPoint3.X);
writer.Write(23, RefPoint3.Y);
writer.Write(33, 0.0);
writer.Write(14, RefPoint4.X);
writer.Write(24, RefPoint4.Y);
writer.Write(34, 0.0);
writer.Write(15, RefPoint5.X);
writer.Write(25, RefPoint5.Y);
writer.Write(35, 0.0);
writer.Write(16, RefPoint6.X);
writer.Write(26, RefPoint6.Y);
writer.Write(36, 0.0);
}
}