//
void CombinePathsInternal(
VertexStore a,
VertexStore b,
VxsClipperType vxsClipType,
bool separateIntoSmallSubPaths,
List <VertexStore> resultList)
{
//prepare instance
//reset all used fields
ClipType clipType = (ClipType)vxsClipType;
CreatePolygons(a, _aPolys);
CreatePolygons(b, _bPolys);
_clipper.AddPaths(_aPolys, PolyType.ptSubject, true);
_clipper.AddPaths(_bPolys, PolyType.ptClip, true);
_clipper.Execute(clipType, _intersectedPolys);
if (separateIntoSmallSubPaths)
{
foreach (List <IntPoint> polygon in _intersectedPolys)
{
int j = polygon.Count;
if (j > 0)
{
//first one
IntPoint point = polygon[0];
using (VxsTemp.Borrow(out VertexStore v1))
using (VectorToolBox.Borrow(v1, out PathWriter pw))
{
pw.MoveTo(point.X / 1000.0, point.Y / 1000.0);
//next others ...
if (j > 1)
{
for (int i = 1; i < j; ++i)
{
point = polygon[i];
pw.LineTo(point.X / 1000.0, point.Y / 1000.0);
}
}
pw.CloseFigure();
resultList.Add(v1.CreateTrim()); //copy
pw.Clear();
}
}
}
}
else
{
using (VxsTemp.Borrow(out VertexStore v1))
using (VectorToolBox.Borrow(v1, out PathWriter pw))
{
foreach (List <IntPoint> polygon in _intersectedPolys)
{
int j = polygon.Count;
if (j > 0)
{
//first one
IntPoint point = polygon[0];
pw.MoveTo(point.X / 1000.0, point.Y / 1000.0);
//next others ...
if (j > 1)
{
for (int i = 1; i < j; ++i)
{
point = polygon[i];
pw.LineTo(point.X / 1000.0, point.Y / 1000.0);
}
}
pw.CloseFigure();
}
}
pw.Stop();
resultList.Add(v1.CreateTrim());
}
}
}
//
VertexStore CombinePathsInternal(
VertexStore a,
VertexStore b,
VxsClipperType vxsClipType,
bool separateIntoSmallSubPaths,
List <VertexStore> resultList)
{
//prepare instance
//reset all used fields
ClipType clipType = (ClipType)vxsClipType;
CreatePolygons(a, _aPolys);
CreatePolygons(b, _bPolys);
_clipper.AddPaths(_aPolys, PolyType.ptSubject, true);
_clipper.AddPaths(_bPolys, PolyType.ptClip, true);
_clipper.Execute(clipType, _intersectedPolys);
if (separateIntoSmallSubPaths)
{
VertexStore firstOutput = null;
//in this case we expect that resultList must not be null***
foreach (List <IntPoint> polygon in _intersectedPolys)
{
int j = polygon.Count; //***
if (j > 0)
{
//first one
IntPoint point = polygon[0];
using (VxsTemp.Borrow(out VertexStore v1))
using (VectorToolBox.Borrow(v1, out PathWriter pw))
{
pw.MoveTo(point.X / 1000.0, point.Y / 1000.0);
//next others ...
if (j > 1)
{
for (int i = 1; i < j; ++i)
{
point = polygon[i];
pw.LineTo(point.X / 1000.0, point.Y / 1000.0);
}
}
pw.CloseFigure();
VertexStore result = v1.CreateTrim();
if (firstOutput == null)
{
firstOutput = result;
}
resultList.Add(result); //copy
pw.Clear();
}
}
}
return(firstOutput);
}
else
{
using (VxsTemp.Borrow(out var v1))
using (VectorToolBox.Borrow(v1, out PathWriter pw))
{
foreach (List <IntPoint> polygon in _intersectedPolys)
{
int j = polygon.Count;
if (j > 0)
{
//first one
IntPoint point = polygon[0];
pw.MoveTo(point.X / 1000.0, point.Y / 1000.0);
//next others ...
if (j > 1)
{
for (int i = 1; i < j; ++i)
{
point = polygon[i];
pw.LineTo(point.X / 1000.0, point.Y / 1000.0);
}
}
pw.CloseFigure();
}
}
pw.Stop();
VertexStore output = v1.CreateTrim();
if (resultList != null)
{
resultList.Add(output);//also add to here
}
return(output);
}
}
}