public static List <Point3d> GetBoundaryLine2d(List <Int16Triple> regionPoints, bool smoothing, int iteration)
{
Box3Int box = GetBox3(regionPoints);
int stx = 0, sty = 0;
BitMap2d bmp_1 = GetMappedBitmap(regionPoints, box, ref stx, ref sty);
// bmp_1.OutputBitMap("1.bmp");
BitMap2d bmp_2 = GetSingleRegionBitmap(bmp_1);
// bmp_2.OutputBitMap("2.bmp");
bmp_1 = null;
SquarSurface mc2 = new SquarSurface(bmp_2);
PolyLine polyline = mc2.GenerateLine();
if (smoothing && iteration >= 1)
{
for (int i = 0; i < iteration; i++)
{
SmoothingLine(polyline);
}
}
// PlyManager.Output2(polyline.Points,polyline.Edges,"3.ply");
List <FloatDouble> points = polyline.GetDrawablePointList();
List <Point3d> ret = new List <Point3d>(points.Count);
for (int i = 0; i < points.Count; i++)
{
ret.Add(new Point3d(points[i].X + stx, points[i].Y + sty, 0));
}
return(ret);
}
private static Box3Int GetBox3(List <Int16Triple> regionPoints)
{
Box3Int box = new Box3Int();
for (int i = 0; i < regionPoints.Count; i++)
{
box.UpdataRange(regionPoints[i].X, regionPoints[i].Y, regionPoints[i].Z);
}
return(box);
}
private static BitMap2d GetMappedBitmap(List <Int16Triple> regionPoints, Box3Int box, ref int stx, ref int sty)
{
BitMap2d bmp = new BitMap2d(box.GetXLength() + 2, box.GetYLength() + 2, BitMap2d.BLACK);
stx = box.Min3[0] - 1;
sty = box.Min3[1] - 1;
for (int i = 0; i < regionPoints.Count; i++)
{
bmp.SetPixel(regionPoints[i].X - stx, regionPoints[i].Y - sty, BitMap2d.WHITE);
}
return(bmp);
}