public static BoundingArea GetBoundingArea(float x1, float y1, float x2, float y2)
{
#if !SIMPLE_BOUNDING_AREA
if (x1 == x2 || y1 == y2)
{
return(new BoundingArea(VisualizationUtils.CreateRectangle(x1, y1, x2, y2)));
}
float delta = Math.Abs((x2 - x1) / (y2 - y1));
float stepMax = (float)Math.Sqrt(mMaxBoxArea / delta + delta * mMaxBoxArea);
VectorF line = new VectorF(x1, y1, x2, y2);
float lineLen = line.GetLength();
if (stepMax >= lineLen)
{
return(new BoundingArea(VisualizationUtils.CreateRectangle(x1, y1, x2, y2)));
}
BoundingArea boundingArea = new BoundingArea();
int steps = (int)Math.Ceiling(lineLen / stepMax);
VectorF stepVec = line;
stepVec.SetLength(lineLen / (float)steps);
VectorF pt1 = new VectorF(x1, y1);
VectorF pt2;
for (int i = 0; i < steps - 1; i++)
{
pt2 = pt1 + stepVec;
boundingArea.AddRectangles(VisualizationUtils.CreateRectangle(pt1.X, pt1.Y, pt2.X, pt2.Y));
pt1 = pt2;
}
pt2 = new VectorF(x2, y2);
boundingArea.AddRectangles(VisualizationUtils.CreateRectangle(pt1.X, pt1.Y, pt2.X, pt2.Y));
return(boundingArea);
#else
BoundingArea boundingArea = new BoundingArea();
boundingArea.AddRectangles(VisualizationUtils.CreateRectangle(x1, y1, x2, y2));
return(boundingArea);
#endif
}
