public static Point2D getRectPosAlongPolyline()

in graphLayout/jetbrains.mps.graphLayout.graph/source_gen/jetbrains/mps/graphLayout/outputUtil/GraphLayoutOutputUtil.java [39:86]

• 47 lines of code
• 14 McCabe index (conditional complexity)

  public static Point2D getRectPosAlongPolyline(List<Point> route, Rectangle rect) {
    Point prev = null;
    int x = rect.x;
    int y = rect.y;
    Point res = null;
    int len = 0;
    int num = 0;
    for (Point next : ListSequence.fromList(route)) {
      if (prev == null || prev.equals(next)) {
        prev = next;
        continue;
      }
      num++;
      if (prev.x == next.x && prev.x == x) {
        if ((prev.y - y) * (next.y - y) < 0) {
          int yCenter = y + rect.height / 2;
          int dist = rect.width / 2;
          if (prev.y > next.y) {
            dist = -dist;
          }
          res = new Point(len + Math.abs(yCenter - prev.y), dist);
        }

      }
      if (prev.y == next.y && prev.y == y) {
        if ((prev.x - x) * (next.x - x) < 0) {
          int xCenter = x + rect.width / 2;
          int dist = rect.height / 2;
          if (prev.x < next.x) {
            dist = -dist;
          }
          res = new Point(len + Math.abs(xCenter - prev.x), dist);
        }
      }
      len += prev.manhattanDist(next);
      prev = next;
    }
    if (res == null) {
      return null;
    }
    int l = len / 2;
    double relX = 1.0 * Math.abs(res.x - l) / l;
    if (res.x < l) {
      relX = -relX;
    }
    Point2D.Double point = new Point2D.Double(relX, res.y);
    return point;
  }