本文整理汇总了C#中Polygons.Clear方法的典型用法代码示例。如果您正苦于以下问题：C# Polygons.Clear方法的具体用法？C# Polygons.Clear怎么用？C# Polygons.Clear使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Polygons的用法示例。
在下文中一共展示了Polygons.Clear方法的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: PolyTreeToPolygons
//------------------------------------------------------------------------------
public static void PolyTreeToPolygons(PolyTree polytree, Polygons polygons)
{
polygons.Clear();
polygons.Capacity = polytree.Total;
AddPolyNodeToPolygons(polytree, polygons);
}示例2: BuildResult
//------------------------------------------------------------------------------
private void BuildResult(Polygons polyg)
{
polyg.Clear();
polyg.Capacity = m_PolyOuts.Count;
for (int i = 0; i < m_PolyOuts.Count; i++)
{
OutRec outRec = m_PolyOuts[i];
if (outRec.pts == null) continue;
OutPt p = outRec.pts;
int cnt = PointCount(p);
if (cnt < 3) continue;
Polygon pg = new Polygon(cnt);
for (int j = 0; j < cnt; j++)
{
pg.Add(p.pt);
p = p.prev;
}
polyg.Add(pg);
}
}示例3: Execute
//------------------------------------------------------------------------------
public bool Execute(ClipType clipType, Polygons solution,
PolyFillType subjFillType, PolyFillType clipFillType)
{
if (m_ExecuteLocked) return false;
m_ExecuteLocked = true;
solution.Clear();
m_SubjFillType = subjFillType;
m_ClipFillType = clipFillType;
m_ClipType = clipType;
m_UsingPolyTree = false;
bool succeeded = ExecuteInternal();
//build the return polygons ...
if (succeeded) BuildResult(solution);
m_ExecuteLocked = false;
return succeeded;
}示例4: LoadFromFile
//---------------------------------------------------------------------
bool LoadFromFile(string filename, Polygons ppg, double scale = 0,
int xOffset = 0, int yOffset = 0)
{
double scaling = Math.Pow(10, scale);
ppg.Clear();
if (!File.Exists(filename)) return false;
StreamReader sr = new StreamReader(filename);
if (sr == null) return false;
string line;
if ((line = sr.ReadLine()) == null) return false;
int polyCnt, vertCnt;
if (!Int32.TryParse(line, out polyCnt) || polyCnt < 0) return false;
ppg.Capacity = polyCnt;
for (int i = 0; i < polyCnt; i++)
{
if ((line = sr.ReadLine()) == null) return false;
if (!Int32.TryParse(line, out vertCnt) || vertCnt < 0) return false;
Polygon pg = new Polygon(vertCnt);
ppg.Add(pg);
for (int j = 0; j < vertCnt; j++)
{
double x, y;
if ((line = sr.ReadLine()) == null) return false;
char[] delimiters = new char[] { ',', ' ' };
string [] vals = line.Split(delimiters);
if (vals.Length < 2) return false;
if (!double.TryParse(vals[0], out x)) return false;
if (!double.TryParse(vals[1], out y))
if (vals.Length < 2 || !double.TryParse(vals[2], out y)) return false;
x = x * scaling + xOffset;
y = y * scaling + yOffset;
pg.Add(new IntPoint((int)Math.Round(x), (int)Math.Round(y)));
}
}
return true;
}示例5: PolyTreeToPolygons
//------------------------------------------------------------------------------
public static void PolyTreeToPolygons(PolyTree polytree, Polygons polys)
{
polys.Clear();
polys.Capacity = polytree.Total;
AddPolyNodeToPaths(polytree, NodeType.ntAny, polys);
}示例6: PushPolygonToArray
PushPolygonToArray(List<List<IntPoint>> subjects, List<List<IntPoint>> clips)
{
Polygons nextClip = new Polygons();
Polygons currentSubject = new Polygons();
Polygons currentClip = new Polygons();
Polygons currentArrayDraw = new Polygons();
Polygons currentArrayInvisible = new Polygons();
Clipper cTupleDraw = new Clipper();
Clipper cTupleInvisible = new Clipper();
//find polygons to be drawn
currentSubject.Clear();
currentClip.Clear();
currentSubject = subjects;
currentClip = clips;
cTupleDraw.Clear();
cTupleDraw.AddPaths(currentSubject, PolyType.ptSubject, true);
cTupleDraw.AddPaths(currentClip, PolyType.ptClip, true);
currentArrayDraw.Clear();
bool succeededDraw = cTupleDraw.Execute(ClipType.ctDifference, currentArrayDraw,
PolyFillType.pftNonZero, PolyFillType.pftNonZero);
//find next clipped polygon
nextClip.Clear();
bool succeededNextClip = cTupleDraw.Execute(ClipType.ctUnion, nextClip,
PolyFillType.pftNonZero, PolyFillType.pftNonZero);
//find invisible polygons
cTupleInvisible.Clear();
cTupleInvisible.AddPaths(currentSubject, PolyType.ptSubject, true);
cTupleInvisible.AddPaths(currentClip, PolyType.ptClip, true);
currentArrayInvisible.Clear();
bool succeededInvisible = cTupleInvisible.Execute(ClipType.ctIntersection, currentArrayInvisible,
PolyFillType.pftNonZero, PolyFillType.pftNonZero);
return new Tuple<List<List<IntPoint>>, List<List<IntPoint>>, List<List<IntPoint>>>
(currentArrayDraw, currentArrayInvisible, nextClip);
}