//------------------------------------------------------------------------------
public static IntRect GetBounds(List<List<IntPoint>> paths)
{
int i = 0, cnt = paths.Count;
while (i < cnt && paths[i].Count == 0) i++;
if (i == cnt) return new IntRect(0, 0, 0, 0);
IntRect result = new IntRect();
result.left = paths[i][0].X;
result.right = result.left;
result.top = paths[i][0].Y;
result.bottom = result.top;
for (; i < cnt; i++)
for (int j = 0; j < paths[i].Count; j++)
{
if (paths[i][j].X < result.left) result.left = paths[i][j].X;
else if (paths[i][j].X > result.right) result.right = paths[i][j].X;
if (paths[i][j].Y < result.top) result.top = paths[i][j].Y;
else if (paths[i][j].Y > result.bottom) result.bottom = paths[i][j].Y;
}
return result;
}
public Boolean SaveToFile(string filename, double scale = 1.0, int margin = 10)
{
if (scale == 0) scale = 1.0;
if (margin < 0) margin = 0;
//calculate the bounding rect ...
int i = 0, j = 0;
while (i < PolyInfoList.Count)
{
j = 0;
while (j < PolyInfoList[i].polygons.Count &&
PolyInfoList[i].polygons[j].Count == 0) j++;
if (j < PolyInfoList[i].polygons.Count) break;
i++;
}
if (i == PolyInfoList.Count) return false;
IntRect rec = new IntRect();
rec.left = PolyInfoList[i].polygons[j][0].X;
rec.right = rec.left;
rec.top = PolyInfoList[0].polygons[j][0].Y;
rec.bottom = rec.top;
for (; i < PolyInfoList.Count; i++)
{
foreach (Polygon pg in PolyInfoList[i].polygons)
foreach (IntPoint pt in pg)
{
if (pt.X < rec.left) rec.left = pt.X;
else if (pt.X > rec.right) rec.right = pt.X;
if (pt.Y < rec.top) rec.top = pt.Y;
else if (pt.Y > rec.bottom) rec.bottom = pt.Y;
}
}
rec.left = (Int64)((double)rec.left * scale);
rec.top = (Int64)((double)rec.top * scale);
rec.right = (Int64)((double)rec.right * scale);
rec.bottom = (Int64)((double)rec.bottom * scale);
Int64 offsetX = -rec.left + margin;
Int64 offsetY = -rec.top + margin;
StreamWriter writer = new StreamWriter(filename);
if (writer == null) return false;
writer.Write(svg_header,
(rec.right - rec.left) + margin * 2,
(rec.bottom - rec.top) + margin * 2,
(rec.right - rec.left) + margin * 2,
(rec.bottom - rec.top) + margin * 2);
foreach (PolyInfo pi in PolyInfoList)
{
writer.Write(" <path d=\"");
foreach (Polygon p in pi.polygons)
{
if (p.Count < 3) continue;
writer.Write(String.Format(NumberFormatInfo.InvariantInfo, " M {0:f2} {1:f2}",
(double)((double)p[0].X * scale + offsetX),
(double)((double)p[0].Y * scale + offsetY)));
for (int k = 1; k < p.Count; k++)
{
writer.Write(String.Format(NumberFormatInfo.InvariantInfo, " L {0:f2} {1:f2}",
(double)((double)p[k].X * scale + offsetX),
(double)((double)p[k].Y * scale + offsetY)));
}
writer.Write(" z");
}
writer.Write(String.Format(NumberFormatInfo.InvariantInfo, svg_path_format,
ColorTranslator.ToHtml(pi.si.brushClr),
(float)pi.si.brushClr.A / 255,
(pi.si.pft == PolyFillType.pftEvenOdd ? "evenodd" : "nonzero"),
ColorTranslator.ToHtml(pi.si.penClr),
(float)pi.si.penClr.A / 255,
pi.si.penWidth));
if (pi.si.showCoords)
{
writer.Write("<g font-family=\"Verdana\" font-size=\"11\" fill=\"black\">\n\n");
foreach (Polygon p in pi.polygons)
{
foreach (IntPoint pt in p)
{
Int64 x = pt.X;
Int64 y = pt.Y;
writer.Write(String.Format(
"<text x=\"{0}\" y=\"{1}\">{2},{3}</text>\n",
(int)(x * scale + offsetX), (int)(y * scale + offsetY), x, y));
}
writer.Write("\n");
}
writer.Write("</g>\n");
}
}
writer.Write("</svg>\n");
writer.Close();
return true;
}
//------------------------------------------------------------------------------
public IntRect GetBounds()
{
IntRect result = new IntRect();
LocalMinima lm = m_MinimaList;
if (lm == null) return result;
result.left = lm.leftBound.xbot;
result.top = lm.leftBound.ybot;
result.right = lm.leftBound.xbot;
result.bottom = lm.leftBound.ybot;
while (lm != null)
{
if (lm.leftBound.ybot > result.bottom)
result.bottom = lm.leftBound.ybot;
TEdge e = lm.leftBound;
for (; ; )
{
TEdge bottomE = e;
while (e.nextInLML != null)
{
if (e.xbot < result.left) result.left = e.xbot;
if (e.xbot > result.right) result.right = e.xbot;
e = e.nextInLML;
}
if (e.xbot < result.left) result.left = e.xbot;
if (e.xbot > result.right) result.right = e.xbot;
if (e.xtop < result.left) result.left = e.xtop;
if (e.xtop > result.right) result.right = e.xtop;
if (e.ytop < result.top) result.top = e.ytop;
if (bottomE == lm.leftBound) e = lm.rightBound;
else break;
}
lm = lm.next;
}
return result;
}
public IntRect(IntRect ir)
{
this.left = ir.left; this.top = ir.top;
this.right = ir.right; this.bottom = ir.bottom;
}
//------------------------------------------------------------------------------
public IntRect GetBounds()
{
IntRect result = new IntRect();
LocalMinima lm = m_MinimaList;
if (lm == null) return result;
result.left = lm.LeftBound.Bot.X;
result.top = lm.LeftBound.Bot.Y;
result.right = lm.LeftBound.Bot.X;
result.bottom = lm.LeftBound.Bot.Y;
while (lm != null)
{
if (lm.LeftBound.Bot.Y > result.bottom)
result.bottom = lm.LeftBound.Bot.Y;
TEdge e = lm.LeftBound;
for (; ; )
{
TEdge bottomE = e;
while (e.NextInLML != null)
{
if (e.Bot.X < result.left) result.left = e.Bot.X;
if (e.Bot.X > result.right) result.right = e.Bot.X;
e = e.NextInLML;
}
if (e.Bot.X < result.left) result.left = e.Bot.X;
if (e.Bot.X > result.right) result.right = e.Bot.X;
if (e.Top.X < result.left) result.left = e.Top.X;
if (e.Top.X > result.right) result.right = e.Top.X;
if (e.Top.Y < result.top) result.top = e.Top.Y;
if (bottomE == lm.LeftBound) e = lm.RightBound;
else break;
}
lm = lm.Next;
}
return result;
}
//------------------------------------------------------------------------------
public IntRect GetBounds()
{
IntRect result = new IntRect();
LocalMinima lm = m_MinimaList;
if (lm == null)
{
return(result);
}
result.left = lm.LeftBound.Bot.X;
result.top = lm.LeftBound.Bot.Y;
result.right = lm.LeftBound.Bot.X;
result.bottom = lm.LeftBound.Bot.Y;
while (lm != null)
{
if (lm.LeftBound.Bot.Y > result.bottom)
{
result.bottom = lm.LeftBound.Bot.Y;
}
TEdge e = lm.LeftBound;
for (;;)
{
TEdge bottomE = e;
while (e.NextInLML != null)
{
if (e.Bot.X < result.left)
{
result.left = e.Bot.X;
}
if (e.Bot.X > result.right)
{
result.right = e.Bot.X;
}
e = e.NextInLML;
}
if (e.Bot.X < result.left)
{
result.left = e.Bot.X;
}
if (e.Bot.X > result.right)
{
result.right = e.Bot.X;
}
if (e.Top.X < result.left)
{
result.left = e.Top.X;
}
if (e.Top.X > result.right)
{
result.right = e.Top.X;
}
if (e.Top.Y < result.top)
{
result.top = e.Top.Y;
}
if (bottomE == lm.LeftBound)
{
e = lm.RightBound;
}
else
{
break;
}
}
lm = lm.Next;
}
return(result);
}