// Vertex Source Interface
void RewindZero()
{
if (m_status == StrokeMath.Status.Init)
{
vertexDistanceList.Close(true);
if (m_auto_detect)
{
if (m_orientation == EndVertexOrientation.Unknown)
{
m_orientation = (AggMath.CalculatePolygonArea(vertexDistanceList) > 0.0) ?
EndVertexOrientation.CCW :
EndVertexOrientation.CW;
}
}
switch (m_orientation)
{
case EndVertexOrientation.CCW:
{
m_stroker.Width = m_width;
}
break;
case EndVertexOrientation.CW:
{
m_stroker.Width = -m_width;
}
break;
}
}
m_status = StrokeMath.Status.Ready;
m_src_vertex = 0;
}
public void AddVertex(double x, double y, VertexCmd cmd)
{
m_status = StrokeMath.Status.Init;
switch (cmd)
{
case VertexCmd.MoveTo:
vertexDistanceList.ReplaceLast(new VertexDistance(x, y));
break;
case VertexCmd.Close:
case VertexCmd.CloseAndEndFigure:
{
//end and close
m_closed = true;
if (m_orientation == EndVertexOrientation.Unknown)
{
switch ((int)x)
{
case 1:
case 2:
{
m_orientation = (EndVertexOrientation)x;
}
break;
}
}
}
break;
default:
vertexDistanceList.AddVertex(new VertexDistance(x, y));
break;
}
}
public ContourGenerator()
{
m_stroker = new StrokeMath();
m_width = 1;
vertexDistanceList = new VertexDistanceList();
m_out_vertices = new VertexStore();
m_status = StrokeMath.Status.Init;
m_src_vertex = 0;
m_closed = false;
m_orientation = 0;
m_auto_detect = false;
}
public ContourGenerator()
{
m_stroker = new StrokeMath();
m_width = 1;
vertexDistanceList = new VertexDistanceList();
m_out_vertices = new VertexStore();
m_status = StrokeMath.Status.Init;
m_src_vertex = 0;
m_closed = false;
m_orientation = 0;
m_auto_detect = false;
}
public void AddVertex(double x, double y, VertexCmd cmd)
{
m_status = StrokeMath.Status.Init;
switch (cmd)
{
case VertexCmd.MoveTo:
vertexDistanceList.ReplaceLast(new VertexDistance(x, y));
break;
case VertexCmd.CloseAndEndFigure:
{
//end and close
m_closed = true;
if (m_orientation == EndVertexOrientation.Unknown)
{
switch ((int)x)
{
case 1:
case 2:
{
m_orientation = (EndVertexOrientation)x;
}
break;
}
}
}
break;
case VertexCmd.EndFigure:
//end not close
if (m_orientation == EndVertexOrientation.Unknown)
{
switch ((int)x)
{
case 1:
case 2:
{
m_orientation = (EndVertexOrientation)x;
}
break;
}
}
break;
default:
vertexDistanceList.AddVertex(new VertexDistance(x, y));
break;
}
}
// Vertex Source Interface
void RewindZero()
{
if (m_status == StrokeMath.Status.Init)
{
vertexDistanceList.Close(true);
if (m_auto_detect)
{
if (m_orientation == EndVertexOrientation.Unknown)
{
m_orientation = (AggMath.CalculatePolygonArea(vertexDistanceList) > 0.0) ?
EndVertexOrientation.CCW :
EndVertexOrientation.CW;
}
}
switch (m_orientation)
{
case EndVertexOrientation.CCW:
{
m_stroker.Width = m_width;
}
break;
case EndVertexOrientation.CW:
{
m_stroker.Width = -m_width;
}
break;
}
}
m_status = StrokeMath.Status.Ready;
m_src_vertex = 0;
}
