public void Dispose()
{
leftVertex = null;
rightVertex = null;
if (clippedVertices != null)
{
clippedVertices.Clear();
manager.Release(clippedVertices);
clippedVertices = null;
}
sites.Clear();
manager.Release(this);
}
/*
* Set clippedVertices to contain the two ends of the portion of the Voronoi edge that is visible
* within the bounds. If no part of the Edge falls within the bounds, leave clippedVertices null
* @param bounds
*/
public void ClipVertices(Rectf bounds)
{
float xmin = bounds.x;
float ymin = bounds.y;
float xmax = bounds.right;
float ymax = bounds.bottom;
Vertex vertex0, vertex1;
float x0, x1, y0, y1;
if (a == 1 && b >= 0)
{
vertex0 = rightVertex;
vertex1 = leftVertex;
}
else
{
vertex0 = leftVertex;
vertex1 = rightVertex;
}
if (a == 1)
{
y0 = ymin;
if (vertex0 != null && vertex0.y > ymin)
{
y0 = vertex0.y;
}
if (y0 > ymax)
{
return;
}
x0 = c - b * y0;
y1 = ymax;
if (vertex1 != null && vertex1.y < ymax)
{
y1 = vertex1.y;
}
if (y1 < ymin)
{
return;
}
x1 = c - b * y1;
if ((x0 > xmax && x1 > xmax) || (x0 < xmin && x1 < xmin))
{
return;
}
if (x0 > xmax)
{
x0 = xmax;
y0 = (c - x0) / b;
}
else if (x0 < xmin)
{
x0 = xmin;
y0 = (c - x0) / b;
}
if (x1 > xmax)
{
x1 = xmax;
y1 = (c - x1) / b;
}
else if (x1 < xmin)
{
x1 = xmin;
y1 = (c - x1) / b;
}
}
else
{
x0 = xmin;
if (vertex0 != null && vertex0.x > xmin)
{
x0 = vertex0.x;
}
if (x0 > xmax)
{
return;
}
y0 = c - a * x0;
x1 = xmax;
if (vertex1 != null && vertex1.x < xmax)
{
x1 = vertex1.x;
}
if (x1 < xmin)
{
return;
}
y1 = c - a * x1;
if ((y0 > ymax && y1 > ymax) || (y0 < ymin && y1 < ymin))
{
return;
}
if (y0 > ymax)
{
y0 = ymax;
x0 = (c - y0) / a;
}
else if (y0 < ymin)
{
y0 = ymin;
x0 = (c - y0) / a;
}
if (y1 > ymax)
{
y1 = ymax;
x1 = (c - y1) / a;
}
else if (y1 < ymin)
{
y1 = ymin;
x1 = (c - y1) / a;
}
}
clippedVertices = manager.ObtainLRCollectionVector2f();
if (vertex0 == leftVertex)
{
clippedVertices[LR.LEFT] = new Vector2f(x0, y0);
clippedVertices[LR.RIGHT] = new Vector2f(x1, y1);
}
else
{
clippedVertices[LR.RIGHT] = new Vector2f(x0, y0);
clippedVertices[LR.LEFT] = new Vector2f(x1, y1);
}
}
public void Release(LRCollection <Vector2f> clippedVerticesList)
{
clippedVerticesList.Clear();
lrCollectionVector2f.Release(clippedVerticesList);
}