public void WriteLayers(StreamWriter writer)
{
if (Layers.Count == 0)
{
return;
}
DXFUtils.WriteDXFRecord(writer, 0, "TABLE");
DXFUtils.WriteDXFRecord(writer, 2, "LAYER");
for (int I = 0; I < Layers.Count; I++)
{
DXFUtils.WriteDXFRecord(writer, 0, "LAYER");
DXFUtils.WriteDXFRecord(writer, 2, DXFUtils.DXFiseLayerName(Layers[I]));
DXFUtils.WriteDXFRecord(writer, 70, "0");
DXFUtils.WriteDXFRecord(writer, 62, "7");
DXFUtils.WriteDXFRecord(writer, 6, "CONTINUOUS");
}
DXFUtils.WriteDXFRecord(writer, 0, "ENDTAB");
}
protected void SaveAsPolyLine(StreamWriter writer, DistanceUnitsType OutputUnits)
{
if (Entities.Count == 0)
{
return;
}
// Get the height of the first vertex in the polyline. If the polyline is not
// to be written out as a 3D polyline, this height will be the height of all the
// vertices in the polyline.
var PolyLineHeight = Entities[0].GetInitialHeight();
DXFUtils.WriteDXFRecord(writer, 0, "POLYLINE");
base.SaveToFile(writer, OutputUnits);
DXFUtils.WriteDXFRecord(writer, DXFConsts.DxfThicknessId, Thickness.ToString());
DXFUtils.WriteDXFRecord(writer, 6, "CONTINUOUS");
var PolylineFlags = 0;
if (Closed)
{
PolylineFlags |= 0x01;
}
// Determine if the polyline contains any arc entities (ie: intervals with 'bulges')
var HasArcs = false;
foreach (var entity in Entities)
{
if (entity is DXFArcEntity)
{
HasArcs = true;
break;
}
}
var Output3DVertices = Is3D();
if (HasArcs && PolyLineHeight != Consts.NullDouble)
// We have to write out a 30 record to specify the
// height of all the entities in the polyline.
{
DXFUtils.WriteDXFRecord(writer, 30, DXFUtils.NoLocaleFloatToStrF(DXFUtils.DXFDistance(PolyLineHeight, OutputUnits), 6));
Output3DVertices = false;
}
if (Output3DVertices)
{
PolylineFlags |= 0x08;
}
DXFUtils.WriteDXFRecord(writer, DXFConsts.PolyLineFlagsId, PolylineFlags.ToString());
DXFUtils.WriteDXFRecord(writer, DXFConsts.EntitiesFollowId, "1");
DXFUtils.WriteXYZToDXF(writer, 0, 0, 0, Consts.NullDouble, OutputUnits);
for (int I = 0; I < Entities.Count; I++)
{
DXFUtils.WriteDXFRecord(writer, 0, "VERTEX");
DXFUtils.WriteDXFRecord(writer, DXFConsts.LayerNameId, DXFUtils.DXFiseLayerName(Layer));
if (Entities[I] is DXFLineEntity lineEntity)
{
DXFUtils.WriteXYZToDXF(writer, 0, lineEntity.X1, lineEntity.Y1, HasArcs ? Consts.NullDouble : lineEntity.Z1, OutputUnits);
}
if (Entities[I] is DXFArcEntity arcEntity)
{
DXFUtils.WriteXYZToDXF(writer, 0, arcEntity.X1, arcEntity.Y1, Consts.NullDouble, OutputUnits);
// Write out the bulge for the arc
var IncAngle = ArcUtils.CalcIncludedAngle(arcEntity.X1, arcEntity.Y1, arcEntity.X2, arcEntity.Y2, arcEntity.CX, arcEntity.CY, arcEntity.Clockwise);
var Bulge = Math.Tan(IncAngle / 4);
DXFUtils.WriteDXFRecord(writer, DXFConsts.ArcBulgeId, DXFUtils.NoLocaleFloatToStrF(Bulge, 6));
}
if (Output3DVertices)
{
DXFUtils.WriteDXFRecord(writer, DXFConsts.VertexFlagsId, "32");
}
}
// Write out last vertex
DXFUtils.WriteDXFRecord(writer, 0, "VERTEX");
DXFUtils.WriteDXFRecord(writer, DXFConsts.LayerNameId, DXFUtils.DXFiseLayerName(Layer));
if (Entities[Entities.Count - 1] is DXFArcEntity arcEntityEnd)
{
DXFUtils.WriteXYZToDXF(writer, 0, arcEntityEnd.X2, arcEntityEnd.Y2, Consts.NullDouble, OutputUnits);
}
else if (Entities[Entities.Count - 1] is DXFLineEntity lineEntity)
{
DXFUtils.WriteXYZToDXF(writer, 0, lineEntity.X2, lineEntity.Y2, HasArcs ? Consts.NullDouble : lineEntity.Z2, OutputUnits);
}
if (Output3DVertices)
{
DXFUtils.WriteDXFRecord(writer, DXFConsts.VertexFlagsId, "32");
}
DXFUtils.WriteDXFRecord(writer, 0, "SEQEND");
}
public virtual void SaveToFile(StreamWriter writer, DistanceUnitsType OutputUnits)
{
DXFUtils.WriteDXFRecord(writer, DXFConsts.LayerNameId, DXFUtils.DXFiseLayerName(Layer));
DXFUtils.WriteDXFRecord(writer, DXFConsts.ColourId, Colour.ToString());
}