public override IEnumerable <VertexData> Vertices()
{
Arc currentProcessingArc = new Arc()
{
ResolutionScale = ResolutionScale
};
currentProcessingArc.init(bounds.Left + leftBottomRadius.X, bounds.Bottom + leftBottomRadius.Y, leftBottomRadius.X, leftBottomRadius.Y, Math.PI, Math.PI + Math.PI * 0.5);
foreach (VertexData vertexData in currentProcessingArc.Vertices())
{
if (ShapePath.is_stop(vertexData.command))
{
break;
}
yield return(vertexData);
}
currentProcessingArc.init(bounds.Right - rightBottomRadius.X, bounds.Bottom + rightBottomRadius.Y, rightBottomRadius.X, rightBottomRadius.Y, Math.PI + Math.PI * 0.5, 0.0);
foreach (VertexData vertexData in currentProcessingArc.Vertices())
{
if (ShapePath.is_move_to(vertexData.command))
{
// skip the initial moveto
continue;
}
if (ShapePath.is_stop(vertexData.command))
{
break;
}
yield return(vertexData);
}
currentProcessingArc.init(bounds.Right - rightTopRadius.X, bounds.Top - rightTopRadius.Y, rightTopRadius.X, rightTopRadius.Y, 0.0, Math.PI * 0.5);
foreach (VertexData vertexData in currentProcessingArc.Vertices())
{
if (ShapePath.is_move_to(vertexData.command))
{
// skip the initial moveto
continue;
}
if (ShapePath.is_stop(vertexData.command))
{
break;
}
yield return(vertexData);
}
currentProcessingArc.init(bounds.Left + leftTopRadius.X, bounds.Top - leftTopRadius.Y, leftTopRadius.X, leftTopRadius.Y, Math.PI * 0.5, Math.PI);
foreach (VertexData vertexData in currentProcessingArc.Vertices())
{
if (ShapePath.is_move_to(vertexData.command))
{
// skip the initial moveto
continue;
}
if (ShapePath.is_stop(vertexData.command))
{
break;
}
yield return(vertexData);
}
yield return(new VertexData(ShapePath.FlagsAndCommand.EndPoly | ShapePath.FlagsAndCommand.FlagClose | ShapePath.FlagsAndCommand.FlagCCW, new Vector2()));
yield return(new VertexData(ShapePath.FlagsAndCommand.Stop, new Vector2()));
}
public ShapePath.FlagsAndCommand vertex(out double x, out double y)
{
x = 0;
y = 0;
ShapePath.FlagsAndCommand command = ShapePath.FlagsAndCommand.CommandStop;
bool done = false;
while (!done)
{
switch (m_status)
{
case status.initial:
markers.remove_all();
m_last_cmd = VertexSource.vertex(out m_start_x, out m_start_y);
m_status = status.accumulate;
goto case status.accumulate;
case status.accumulate:
if (ShapePath.is_stop(m_last_cmd))
{
return(ShapePath.FlagsAndCommand.CommandStop);
}
generator.RemoveAll();
generator.AddVertex(m_start_x, m_start_y, ShapePath.FlagsAndCommand.CommandMoveTo);
markers.add_vertex(m_start_x, m_start_y, ShapePath.FlagsAndCommand.CommandMoveTo);
for (; ;)
{
command = VertexSource.vertex(out x, out y);
//DebugFile.Print("x=" + x.ToString() + " y=" + y.ToString() + "\n");
if (ShapePath.is_vertex(command))
{
m_last_cmd = command;
if (ShapePath.is_move_to(command))
{
m_start_x = x;
m_start_y = y;
break;
}
generator.AddVertex(x, y, command);
markers.add_vertex(x, y, ShapePath.FlagsAndCommand.CommandLineTo);
}
else
{
if (ShapePath.is_stop(command))
{
m_last_cmd = ShapePath.FlagsAndCommand.CommandStop;
break;
}
if (ShapePath.is_end_poly(command))
{
generator.AddVertex(x, y, command);
break;
}
}
}
generator.Rewind(0);
m_status = status.generate;
goto case status.generate;
case status.generate:
command = generator.Vertex(ref x, ref y);
//DebugFile.Print("x=" + x.ToString() + " y=" + y.ToString() + "\n");
if (ShapePath.is_stop(command))
{
m_status = status.accumulate;
break;
}
done = true;
break;
}
}
return(command);
}
