public DXFEntity CreateEntity()
{
DXFEntity E;
switch (this.FValue)
{
case "ENDSEC":
case "ENDTAB":
case "ENDBLK":
case "SEQEND":
return(null);
case "SECTION":
E = new DXFSection();
break;
case "TABLE":
E = new DXFTable();
break;
case "BLOCK":
E = new DXFBlock();
break;
case "ATTDEF":
case "ATTRIB":
E = new DXFAttribute();
break;
case "INSERT":
E = new DXFInsert();
break;
case "LAYER":
E = new DXFLayer();
break;
case "LINE":
E = new DXFLine();
break;
case "CIRCLE":
case "ARC":
E = new DXFCircle();
break;
case "ELLIPSE":
E = new DXFEllipse();
break;
case "LWPOLYLINE":
E = new DXFLWPolyLine();
break;
case "TEXT":
E = new DXFText();
break;
case "MTEXT":
E = new DXFMText();
break;
case "POLYLINE":
E = new DXFPolyLine();
break;
case "VERTEX":
E = new DXFPositionable();
break;
default:
E = new DXFDummy(this.FValue);
break;
}
E.Converter = this;
return(E);
}
/// <summary>
/// Process entities
/// </summary>
private static void processEntities(DXFEntity entity, double offsetX = 0, double offsetY = 0, bool updateColor = true)
{
int index = 0;
double x, y, x2 = 0, y2 = 0, bulge;
if (updateColor)
{
dxfColorID = entity.ColorNumber;
Plotter.PathName = "Layer:" + entity.LayerName;
}
Plotter.PathDashArray = new double[0]; // default no dashes
if (entity.LineType == "ByLayer")
{
if (layerLType.ContainsKey(entity.LayerName)) // check if layer name is known
{
string dashType = layerLType[entity.LayerName]; // get name of pattern
if (lineTypes.ContainsKey(dashType)) // check if pattern name is known
{
Plotter.PathDashArray = lineTypes[dashType]; // apply pattern
}
}
}
else
{
if (lineTypes.ContainsKey(entity.LineType)) // check if pattern name is known
{
Plotter.PathDashArray = lineTypes[entity.LineType]; // apply pattern
}
}
if (dxfColorID > 255)
{
if (layerColor.ContainsKey(entity.LayerName))
{
dxfColorID = layerColor[entity.LayerName];
}
}
if (dxfColorID < 0)
{
dxfColorID = 0;
}
if (dxfColorID > 255)
{
dxfColorID = 7;
}
if (Properties.Settings.Default.importDXFSwitchWhite && (dxfColorID == 7))
{
dxfColorID = 0;
}
dxfColorHex = getColorFromID(dxfColorID);
Plotter.PathColor = dxfColorHex;
if (dxfUseColorIndex)
{
toolNr = dxfColorID + 1; // avoid ID=0 to start tool-table with index 1
}
else
{
toolNr = toolTable.getToolNr(dxfColorHex, 0);
//Logger.Trace("toolNr = {0}",toolNr);
}
Plotter.SetGroup(toolNr); // set index if grouping and tool
if (dxfColorIDold != dxfColorID)
{
Plotter.PenUp("");
toolToUse = toolNr;
if (Properties.Settings.Default.importGCToolTableUse && Properties.Settings.Default.importGCToolDefNrUse)
{
toolToUse = (int)Properties.Settings.Default.importGCToolDefNr;
}
Plotter.PathToolNr = toolToUse;
if (!groupObjects)
{
if (dxfUseColorIndex)
{
Plotter.ToolChange(toolToUse, dxfColorID.ToString()); // add tool change commands (if enabled) and set XYFeed etc.
}
else
{
Plotter.ToolChange(toolToUse, dxfColorHex);
}
}
}
dxfColorIDold = dxfColorID;
if (entity.GetType() == typeof(DXFPointEntity))
{
DXFPointEntity point = (DXFPointEntity)entity;
x = (float)point.Location.X + (float)offsetX;
y = (float)point.Location.Y + (float)offsetY;
if (!nodesOnly)
{
dxfStartPath(x, y, "Start Point");
dxfStopPath();
}
else
{
gcodeDotOnly(x, y, "Start Point");
}
}
#region DXFLWPolyline
else if (entity.GetType() == typeof(DXFLWPolyLine))
{
DXFLWPolyLine lp = (DXFLWPolyLine)entity;
index = 0; bulge = 0;
DXFLWPolyLine.Element coordinate;
bool roundcorner = false;
x = 0; y = 0;
for (int i = 0; i < lp.VertexCount; i++)
{
coordinate = lp.Elements[i];
bulge = coordinate.Bulge;
x2 = x; y2 = y;
x = (double)coordinate.Vertex.X + (double)offsetX;
y = (double)coordinate.Vertex.Y + (double)offsetY;
if (i == 0)
{
if (!nodesOnly)
{
dxfStartPath(x, y, "Start LWPolyLine - Nr pts " + lp.VertexCount.ToString());
Plotter.IsPathReduceOk = true;
}
else
{
gcodeDotOnly(x, y, "Start LWPolyLine");
}
}
if ((!roundcorner))
{
dxfMoveTo(x, y, "");
}
if (bulge != 0)
{
if (i < (lp.VertexCount - 1))
{
AddRoundCorner(lp.Elements[i], lp.Elements[i + 1]);
}
else
if (lp.Flags == DXFLWPolyLine.FlagsEnum.closed)
{
AddRoundCorner(lp.Elements[i], lp.Elements[0]);
}
roundcorner = true;
}
else
{
roundcorner = false;
}
}
if ((lp.Flags > 0))// && (x2 != x) && (y2 != y)) // only move if prev pos is differnent
{
dxfMoveTo((float)(lp.Elements[0].Vertex.X + offsetX), (float)(lp.Elements[0].Vertex.Y + offsetY), "End LWPolyLine " + lp.Flags.ToString());
}
dxfStopPath();
}
#endregion
#region DXFPolyline
else if (entity.GetType() == typeof(DXFPolyLine))
{
DXFPolyLine lp = (DXFPolyLine)entity;
index = 0;
foreach (DXFVertex coordinate in lp.Children)
{
if (coordinate.GetType() == typeof(DXFVertex))
{
if (coordinate.Location.X != null && coordinate.Location.Y != null)
{
x = (float)coordinate.Location.X + (float)offsetX;
y = (float)coordinate.Location.Y + (float)offsetY;
if (!nodesOnly)
{
if (index == 0)
{
dxfStartPath(x, y, "Start PolyLine");
}
else
{
dxfMoveTo(x, y, "");
}
}
else
{
gcodeDotOnly(x, y, "PolyLine");
}
index++;
}
}
}
dxfStopPath();
}
#endregion
#region DXFLine
else if (entity.GetType() == typeof(DXFLine))
{
DXFLine line = (DXFLine)entity;
x = (float)line.Start.X + (float)offsetX;
y = (float)line.Start.Y + (float)offsetY;
x2 = (float)line.End.X + (float)offsetX;
y2 = (float)line.End.Y + (float)offsetY;
Plotter.IsPathReduceOk = false;
if (!nodesOnly)
{
dxfStartPath(x, y, "Start Line");
dxfMoveTo(x2, y2, "");
}
else
{
gcodeDotOnly(x, y, "Start Line");
gcodeDotOnly(x2, y2, "End Line");
}
dxfStopPath();
}
#endregion
#region DXFSpline
else if (entity.GetType() == typeof(DXFSpline))
{
DXFSpline spline = (DXFSpline)entity;
index = 0;
double cx0, cy0, cx1, cy1, cx2, cy2, cx3, cy3, cxMirror, cyMirror, lastX, lastY;
lastX = (double)spline.ControlPoints[0].X + offsetX;
lastY = (double)spline.ControlPoints[0].Y + offsetY;
string cmt = "Start Spline " + spline.KnotValues.Count.ToString() + " " + spline.ControlPoints.Count.ToString() + " " + spline.FitPoints.Count.ToString();
dxfStartPath(lastX, lastY, cmt);
Plotter.IsPathReduceOk = true;
for (int rep = 0; rep < spline.ControlPointCount; rep += 4)
{
cx0 = (double)spline.ControlPoints[rep].X + offsetX; cy0 = (double)spline.ControlPoints[rep].Y + offsetY;
cx1 = (double)spline.ControlPoints[rep + 1].X + offsetX; cy1 = (double)spline.ControlPoints[rep + 1].Y + offsetY;
cx2 = (double)spline.ControlPoints[rep + 2].X + offsetX; cy2 = (double)spline.ControlPoints[rep + 2].Y + offsetY;
cx3 = (double)spline.ControlPoints[rep + 3].X + offsetX; cy3 = (double)spline.ControlPoints[rep + 3].Y + offsetY;
points = new System.Windows.Point[4];
points[0] = new System.Windows.Point(cx0, cy0); //(qpx1, qpy1);
points[1] = new System.Windows.Point(cx1, cy1); //(qpx1, qpy1);
points[2] = new System.Windows.Point(cx2, cy2); //(qpx2, qpy2);
points[3] = new System.Windows.Point(cx3, cy3);
cxMirror = cx3 - (cx2 - cx3); cyMirror = cy3 - (cy2 - cy3);
lastX = cx3; lastY = cy3;
var b = GetBezierApproximation(points, dxfBezierAccuracy);
if (!nodesOnly)
{
for (int i = 1; i < b.Points.Count; i++)
{
dxfMoveTo((float)b.Points[i].X, (float)b.Points[i].Y, "");
}
}
else
{
gcodeDotOnly(cx3, cy3, "Bezier");
}
}
dxfStopPath();
}
#endregion
#region DXFCircle
else if (entity.GetType() == typeof(DXFCircle))
{
DXFCircle circle = (DXFCircle)entity;
x = (float)circle.Center.X + (float)offsetX;
y = (float)circle.Center.Y + (float)offsetY;
dxfStartPath(x + circle.Radius, y, "Start Circle");
Plotter.Arc(2, (float)x + (float)circle.Radius, (float)y, -(float)circle.Radius, 0, "");
dxfStopPath();
}
#endregion
else if (entity.GetType() == typeof(DXFEllipse))
{
DXFEllipse circle = (DXFEllipse)entity;
Plotter.Comment("Ellipse: " + circle.ColorNumber.ToString());
}
#region DXFArc
else if (entity.GetType() == typeof(DXFArc))
{
DXFArc arc = (DXFArc)entity;
double X = (double)arc.Center.X + offsetX;
double Y = (double)arc.Center.Y + offsetY;
double R = arc.Radius;
double startAngle = arc.StartAngle;
double endAngle = arc.EndAngle;
if (startAngle > endAngle)
{
endAngle += 360;
}
double stepwidth = (double)Properties.Settings.Default.importGCSegment;
float StepAngle = (float)(Math.Asin(stepwidth / R) * 180 / Math.PI);// Settings.Default.page11arcMaxLengLine);
double currAngle = startAngle;
index = 0;
if (!nodesOnly)
{
while (currAngle < endAngle)
{
double angle = currAngle * Math.PI / 180;
double rx = (double)(X + R * Math.Cos(angle));
double ry = (double)(Y + R * Math.Sin(angle));
if (index == 0)
{
dxfStartPath(rx, ry, "Start Arc");
Plotter.IsPathReduceOk = true;
}
else
{
dxfMoveTo(rx, ry, "");
}
currAngle += StepAngle;
if (currAngle > endAngle)
{
double angle2 = endAngle * Math.PI / 180;
double rx2 = (double)(X + R * Math.Cos(angle2));
double ry2 = (double)(Y + R * Math.Sin(angle2));
if (index == 0)
{
dxfStartPath(rx2, ry2, "Start Arc");
}
else
{
dxfMoveTo(rx2, ry2, "");
}
}
index++;
}
dxfStopPath();
}
}
#endregion
#region DXFMText
else if (entity.GetType() == typeof(DXFMText))
{ // https://www.autodesk.com/techpubs/autocad/acad2000/dxf/mtext_dxf_06.htm
DXFMText txt = (DXFMText)entity;
xyPoint origin = new xyPoint(0, 0);
GCodeFromFont.reset();
foreach (var entry in txt.Entries)
{
if (entry.GroupCode == 1)
{
GCodeFromFont.gcText = entry.Value.ToString();
}
else if (entry.GroupCode == 40)
{
GCodeFromFont.gcHeight = double.Parse(entry.Value, CultureInfo.InvariantCulture.NumberFormat);
}
else if (entry.GroupCode == 41)
{
GCodeFromFont.gcWidth = double.Parse(entry.Value, CultureInfo.InvariantCulture.NumberFormat);
}
else if (entry.GroupCode == 71)
{
GCodeFromFont.gcAttachPoint = Convert.ToInt16(entry.Value);
}
else if (entry.GroupCode == 10)
{
GCodeFromFont.gcOffX = double.Parse(entry.Value, CultureInfo.InvariantCulture.NumberFormat) + offsetX;
}
else if (entry.GroupCode == 20)
{
GCodeFromFont.gcOffY = double.Parse(entry.Value, CultureInfo.InvariantCulture.NumberFormat) + offsetY;
}
else if (entry.GroupCode == 50)
{
GCodeFromFont.gcAngle = double.Parse(entry.Value, CultureInfo.InvariantCulture.NumberFormat);
}
else if (entry.GroupCode == 44)
{
GCodeFromFont.gcSpacing = double.Parse(entry.Value, CultureInfo.InvariantCulture.NumberFormat);
}
else if (entry.GroupCode == 7)
{
GCodeFromFont.gcFontName = entry.Value.ToString();
}
}
string tmp = string.Format("Id=\"{0}\" Color=\"#{1}\" ToolNr=\"{2}\"", dxfColorID, dxfColorHex, toolToUse);
Plotter.InsertText(tmp);
Plotter.IsPathFigureEnd = true;
}
#endregion
else
{
Plotter.Comment("Unknown: " + entity.GetType().ToString());
}
}
