public static RawDetail LoadDxf(string path)
{
FileInfo fi = new FileInfo(path);
DxfFile dxffile = DxfFile.Load(fi.FullName);
RawDetail s = new RawDetail();
s.Name = fi.FullName;
IEnumerable <DxfEntity> entities = dxffile.Entities.ToArray();
List <LineElement> elems = new List <LineElement>();
foreach (DxfEntity ent in entities)
{
switch (ent.EntityType)
{
case DxfEntityType.LwPolyline:
{
DxfLwPolyline poly = (DxfLwPolyline)ent;
if (poly.Vertices.Count() < 2)
{
continue;
}
LocalContour points = new LocalContour();
foreach (DxfLwPolylineVertex vert in poly.Vertices)
{
points.Points.Add(new PointF((float)vert.X, (float)vert.Y));
}
for (int i = 0; i < points.Points.Count; i++)
{
var p0 = points.Points[i];
var p1 = points.Points[(i + 1) % points.Points.Count];
elems.Add(new LineElement()
{
Start = p0, End = p1
});
}
}
break;
case DxfEntityType.Arc:
{
DxfArc arc = (DxfArc)ent;
List <PointF> pp = new List <PointF>();
if (arc.StartAngle > arc.EndAngle)
{
arc.StartAngle -= 360;
}
for (double i = arc.StartAngle; i < arc.EndAngle; i += 15)
{
var tt = arc.GetPointFromAngle(i);
pp.Add(new PointF((float)tt.X, (float)tt.Y));
}
var t = arc.GetPointFromAngle(arc.EndAngle);
pp.Add(new PointF((float)t.X, (float)t.Y));
for (int j = 1; j < pp.Count; j++)
{
var p1 = pp[j - 1];
var p2 = pp[j];
elems.Add(new LineElement()
{
Start = new PointF((float)p1.X, (float)p1.Y), End = new PointF((float)p2.X, (float)p2.Y)
});
}
}
break;
case DxfEntityType.Circle:
{
DxfCircle cr = (DxfCircle)ent;
LocalContour cc = new LocalContour();
for (int i = 0; i <= 360; i += 15)
{
var ang = i * Math.PI / 180f;
var xx = cr.Center.X + cr.Radius * Math.Cos(ang);
var yy = cr.Center.Y + cr.Radius * Math.Sin(ang);
cc.Points.Add(new PointF((float)xx, (float)yy));
}
for (int i = 1; i < cc.Points.Count; i++)
{
var p1 = cc.Points[i - 1];
var p2 = cc.Points[i];
elems.Add(new LineElement()
{
Start = p1, End = p2
});
}
}
break;
case DxfEntityType.Line:
{
DxfLine poly = (DxfLine)ent;
elems.Add(new LineElement()
{
Start = new PointF((float)poly.P1.X, (float)poly.P1.Y), End = new PointF((float)poly.P2.X, (float)poly.P2.Y)
});
break;
}
case DxfEntityType.Polyline:
{
DxfPolyline poly = (DxfPolyline)ent;
if (poly.Vertices.Count() < 2)
{
continue;
}
LocalContour points = new LocalContour();
for (int i = 0; i < poly.Vertices.Count; i++)
{
DxfVertex vert = poly.Vertices[i];
points.Points.Add(new PointF((float)vert.Location.X, (float)vert.Location.Y));
}
for (int i = 0; i < points.Points.Count; i++)
{
var p0 = points.Points[i];
var p1 = points.Points[(i + 1) % points.Points.Count];
elems.Add(new LineElement()
{
Start = p0, End = p1
});
}
break;
}
default:
throw new ArgumentException("unsupported entity type: " + ent);
}
;
}
elems = elems.Where(z => z.Start.DistTo(z.End) > RemoveThreshold).ToList();
var cntrs2 = ConnectElements(elems.ToArray());
s.Outers.AddRange(cntrs2);
if (s.Outers.Any(z => z.Points.Count < 3))
{
throw new Exception("few points");
}
return(s);
}
public static RawDetail loadDxf(string path)
{
FileInfo fi = new FileInfo(path);
DxfFile dxffile = DxfFile.Load(fi.FullName);
RawDetail s = new RawDetail();
//used to replace the dxf on a nested sheet
s.Name = fi.FullName;
//for now only store used types less for each iterations required
IEnumerable <DxfEntity> entities = dxffile.Entities.Where(ent => ent.EntityType == DxfEntityType.Polyline || ent.EntityType == DxfEntityType.LwPolyline);
foreach (DxfEntity ent in entities)
{
LocalContour points = new LocalContour();
switch (ent.EntityType)
{
case DxfEntityType.LwPolyline:
{
DxfLwPolyline poly = (DxfLwPolyline)ent;
if (poly.Vertices.Count() < 2)
{
continue;
}
foreach (DxfLwPolylineVertex vert in poly.Vertices)
{
points.Points.Add(new PointF((float)vert.X, (float)vert.Y));
}
break;
}
case DxfEntityType.Polyline:
{
DxfPolyline poly = (DxfPolyline)ent;
if (poly.Vertices.Count() < 2)
{
continue;
}
foreach (DxfVertex vert in poly.Vertices)
{
points.Points.Add(new PointF((float)vert.Location.X, (float)vert.Location.Y));
}
break;
}
}
;
if (points.Points.Count() < 3)
{
continue;
}
s.Outers.Add(points);
}
return(s);
}
