public Arc(netDxf.Entities.Arc dxfArc)
: this
((Point)dxfArc.Center
, dxfArc.StartAngle
, dxfArc.EndAngle
, dxfArc.Radius)
{
}
Entity ReadArc(netDxf.Entities.Arc arc, double x, double y)
{
Arc c = new Arc();
c.center = new CADPoint(arc.Center.X + x, arc.Center.Y + y);
c.radius = arc.Radius;
c.startAngle = arc.StartAngle;
c.endAngle = arc.EndAngle;
return(c);
}
public netDxf.Entities.EntityObject ToDXFEntity()
{
netDxf.Entities.Arc dxfArc = new netDxf.Entities.Arc()
{
Center = this.Center.ToDXFVertex3(),
Radius = this.Radius,
Color = this._color.A != 0? new netDxf.AciColor(this.Color) : netDxf.AciColor.ByLayer,
LineType = DXFLineTypeConverter.Convert(this.LineType)
};
if (this.StartAng < this.EndAng)
{
dxfArc.StartAngle = RadToDeg(this.StartAng);
dxfArc.EndAngle = RadToDeg(this.EndAng);
}
else
{
dxfArc.StartAngle = RadToDeg(this.EndAng);
dxfArc.EndAngle = RadToDeg(this.StartAng);
}
return dxfArc;
}
//Method to parse DXF line by line when LoadDXF fails
public static DxfDocument LineByLineLoader(string filename)
{
vector_list.Clear();
DxfDocument dxfdata = new DxfDocument();
List<string> list_of_strings = new List<string>();
//reset logic function
reset_logic();
entity_count =0;
double intermediate =0.0d; //used for nullable exchange
int int_intermediate =0;
bool in_block = false;
bool in_entities =false;
int LineCount =0;
string coder_string ="";
string a_string ="";
string layer_string ="";
Vector2 start_point = new Vector2(0,0);
Vector2 end_point = new Vector2(0,0);
try
{
string line = null;
bool found_file_end =false;
System.IO.TextReader readFile = new StreamReader(filename);
while (found_file_end==false)
{
line = readFile.ReadLine();
if (line != null)
{
list_of_strings.Add(line);
}
else
{
found_file_end=true;
}
}
readFile.Close();
readFile = null;
}
catch(Exception e)
{
error_string=e.ToString();
return dxfdata;
}
for(int i=0;i<list_of_strings.Count; i+=2) //read strings in pairs - first is code - second is value
{
LineCount = LineCount+1;
coder_string = list_of_strings[i].Trim();
try
{
a_string = list_of_strings[i+1].Trim();
}
catch
{
a_string="";
}
//check location in structure - only read from entities section
if (coder_string =="0" && a_string=="BLOCK")
{
in_block=true;
}
if(coder_string =="2" && a_string=="ENTITIES")
{
in_entities=true;
}
if(coder_string =="0" && a_string=="ENDBLK")
{
in_block=false;
}
if(coder_string =="0" && a_string=="ENDSEC")
{
in_entities=false;
}
//read in layer info
if(coder_string=="8" && in_block==false && in_entities==true && (ReadingLine==true || ReadingPolyline == true ||ReadingArc==true || ReadingCircle == true))
{
layer_string = a_string;
FoundNewLayer=true;
//could populate a layer list here if needed
}
//read data
if(coder_string=="10")
{
double.TryParse(a_string, out intermediate);
X1=(double?)intermediate;
}
if (coder_string=="11")
{
double.TryParse(a_string, out intermediate);
X2=(double?)intermediate;
}
if(coder_string=="20")
{
double.TryParse(a_string, out intermediate);
Y1=(double?)intermediate;
}
if(coder_string=="21")
{
double.TryParse(a_string, out intermediate);
Y2=(double?)intermediate;
}
if(coder_string=="40")
{
double.TryParse(a_string, out intermediate);
radius=(double?)intermediate;
}
if(coder_string=="50")
{
double.TryParse(a_string, out intermediate);
start_angle=(double?)intermediate;
}
if(coder_string=="51")
{
double.TryParse(a_string, out intermediate);
end_angle=(double?)intermediate;
}
if(coder_string=="70")
{
if(ReadingPolyline==true)
{
if(a_string=="1")
{
polyline_closed=true;
}
else
{
polyline_closed=false;
}
}
}
if(coder_string=="90")
{
if(ReadingPolyline==true)
{
int.TryParse(a_string, out int_intermediate);
PointCount = (int?)int_intermediate;
}
}
//flag start of a line
if(coder_string =="0" && a_string=="LINE" && in_block==false && in_entities==true)
{
if(ReadingLine==false)
{
reset_logic();
ReadingLine = true;
}
else
{
reset_logic();
}
}
//add line if data complete
if(ReadingLine==true && X1!=null && Y1 !=null && X2 !=null && Y2 != null)
{
start_point = new Vector2((double)X1,(double)Y1);
end_point = new Vector2((double)X2,(double)Y2);
netDxf.Entities.Line aLine = new netDxf.Entities.Line(start_point,end_point);
aLine.Layer = new netDxf.Tables.Layer(layer_string);
dxfdata.AddEntity(aLine);
reset_logic();
entity_count++;
}
//flag start of a LWPOLYLINE
if(coder_string =="0" && a_string=="LWPOLYLINE" && in_block==false && in_entities==true)
{
if(ReadingPolyline == false)
{
reset_logic();
ReadingPolyline = true;
}
else
{
reset_logic();
}
}
//add point to polyline
if(ReadingPolyline==true && X1 !=null && Y1!=null)
{
netDxf.Entities.LwPolylineVertex aVertex = new netDxf.Entities.LwPolylineVertex(new Vector2((double)X1,(double)Y1),0.0d);
points.Add(aVertex);
X1 = null;
Y1 = null;
}
//add polyline if have enough points
if(ReadingPolyline==true && points.Count==PointCount && PointCount !=null)
{
netDxf.Entities.LwPolyline aPolyline = new netDxf.Entities.LwPolyline(points,polyline_closed);
aPolyline.Layer= new netDxf.Tables.Layer(layer_string);
dxfdata.AddEntity(aPolyline);
reset_logic();
entity_count++;
}
//flag star of a ARC
if(coder_string =="0" && a_string=="ARC" && in_block == false)
{
if(ReadingArc==false)
{
reset_logic();
ReadingArc = true;
}
else
{
reset_logic();
}
}
//add arc if data complete
if(ReadingArc==true && X1 != null && Y1 !=null && radius !=null && start_angle != null && end_angle !=null)
{
Vector2 center = new Vector2((double)X1,(double)Y1);
netDxf.Entities.Arc aArc = new netDxf.Entities.Arc(center,(double)radius,(double)start_angle,(double)end_angle);
aArc.Layer= new netDxf.Tables.Layer(layer_string);
dxfdata.AddEntity(aArc);
reset_logic();
entity_count++;
}
//flag star of a CIRCLE
if (coder_string =="0" && a_string=="CIRCLE" && in_block ==false)
{
if (ReadingArc==false)
{
reset_logic();
ReadingCircle =true;
}
else
{
reset_logic();
}
}
//add circle if data complete
if(ReadingCircle==true && X1 !=null && Y1 !=null && radius != null)
{
Vector2 center = new Vector2((double)X1,(double)Y1);
netDxf.Entities.Circle aCircle = new netDxf.Entities.Circle(center,(double)radius);
aCircle.Layer= new netDxf.Tables.Layer(layer_string);
dxfdata.AddEntity(aCircle);
reset_logic();
entity_count++;
}
}
return dxfdata;
}
