public static void Simplify(this RawOutline rgnOutline, float tolerance = 0.5f, bool heighQualityEnable = false)
{
int j = rgnOutline._contours.Count;
for (int i = 0; i < j; ++i)
{
RawContour contour = rgnOutline._contours[i];
List <Point> simplifiedPoints = new List <Point>(contour._xyCoords.Count);
PixelFarm.CpuBlit.VertexProcessing.SimplificationHelpers.Simplify(
contour._xyCoords,
(p1, p2) => p1 == p2,
p => p.X,
p => p.Y,
simplifiedPoints,
tolerance,
heighQualityEnable);
//replace current raw contour with the new one
#if DEBUG
System.Diagnostics.Debug.WriteLine("simplification before:" + contour._xyCoords.Count + ",after" + simplifiedPoints.Count);
#endif
//create a new raw contour,
//but you can replace internal data of the old contour too,
RawContour newContour = new RawContour();
newContour.IsOutside = contour.IsOutside;
foreach (Point point in simplifiedPoints)
{
newContour.AddPoint(point);
}
rgnOutline._contours[i] = newContour;
}
}
public void MakeVxs(VertexStore vxs)
{
int contourCount = _contours.Count;
for (int i = 0; i < contourCount; ++i)
{
//each contour
RawContour contour = _contours[i];
List <Point> xyCoords = contour._xyCoords;
int count = xyCoords.Count;
if (count > 1)
{
if (contour.IsOutside)
{
Point p = xyCoords[0];
vxs.AddMoveTo(p.X, p.Y);
for (int n = 1; n < count; ++n)
{
p = xyCoords[n];
vxs.AddLineTo(p.X, p.Y);
}
vxs.AddCloseFigure();
}
else
{
Point p = xyCoords[count - 1];
vxs.AddMoveTo(p.X, p.Y);
for (int n = count - 1; n >= 0; --n)
{
p = xyCoords[n];
vxs.AddLineTo(p.X, p.Y);
}
vxs.AddCloseFigure();
}
}
}
}
internal void BeginContour(bool outside)
{
_currentContour = new RawContour();
_currentContour.IsOutside = outside;
_contours.Add(_currentContour);
}
