示例#1
0
 private static void CalculateIntersections(Vertices polygon1, Vertices polygon2, out Vertices slicedPoly1, out Vertices slicedPoly2)
 {
     slicedPoly1 = new Vertices(polygon1);
     slicedPoly2 = new Vertices(polygon2);
     for (int i = 0; i < polygon1.Count; i++)
     {
         TSVector2 tSVector  = polygon1[i];
         TSVector2 tSVector2 = polygon1[polygon1.NextIndex(i)];
         for (int j = 0; j < polygon2.Count; j++)
         {
             TSVector2 tSVector3 = polygon2[j];
             TSVector2 tSVector4 = polygon2[polygon2.NextIndex(j)];
             TSVector2 tSVector5;
             bool      flag = LineTools.LineIntersect(tSVector, tSVector2, tSVector3, tSVector4, out tSVector5);
             if (flag)
             {
                 FP   alpha = YuPengClipper.GetAlpha(tSVector, tSVector2, tSVector5);
                 bool flag2 = alpha > 0f && alpha < 1f;
                 if (flag2)
                 {
                     int num = slicedPoly1.IndexOf(tSVector) + 1;
                     while (num < slicedPoly1.Count && YuPengClipper.GetAlpha(tSVector, tSVector2, slicedPoly1[num]) <= alpha)
                     {
                         num++;
                     }
                     slicedPoly1.Insert(num, tSVector5);
                 }
                 alpha = YuPengClipper.GetAlpha(tSVector3, tSVector4, tSVector5);
                 bool flag3 = alpha > 0f && alpha < 1f;
                 if (flag3)
                 {
                     int num2 = slicedPoly2.IndexOf(tSVector3) + 1;
                     while (num2 < slicedPoly2.Count && YuPengClipper.GetAlpha(tSVector3, tSVector4, slicedPoly2[num2]) <= alpha)
                     {
                         num2++;
                     }
                     slicedPoly2.Insert(num2, tSVector5);
                 }
             }
         }
     }
     for (int k = 0; k < slicedPoly1.Count; k++)
     {
         int  index = slicedPoly1.NextIndex(k);
         bool flag4 = (slicedPoly1[index] - slicedPoly1[k]).LengthSquared() <= YuPengClipper.ClipperEpsilonSquared;
         if (flag4)
         {
             slicedPoly1.RemoveAt(k);
             k--;
         }
     }
     for (int l = 0; l < slicedPoly2.Count; l++)
     {
         int  index2 = slicedPoly2.NextIndex(l);
         bool flag5  = (slicedPoly2[index2] - slicedPoly2[l]).LengthSquared() <= YuPengClipper.ClipperEpsilonSquared;
         if (flag5)
         {
             slicedPoly2.RemoveAt(l);
             l--;
         }
     }
 }