public void updateBoundingBox()
{
if (mChainElementList.Count < 2)
{
return;
}
float width = ((myBillBoardChainElement)mChainElementList[0]).width;
Vector3 widthVector = new Vector3(width, width, width);
Vector3 position = ((myBillBoardChainElement)mChainElementList[0]).position;
Vector3 minimum = position - widthVector;
Vector3 maximum = position + widthVector;
for (int i = 1; i < mChainElementList.Count; i++)
{
// Update the bounds of the bounding box
width = ((myBillBoardChainElement)mChainElementList[i]).width;
widthVector = new Vector3(width, width, width);
position = ((myBillBoardChainElement)mChainElementList[i]).position;
minimum.Floor((position - widthVector));
maximum.Ceil((position + widthVector));
}
// Set the current bounding box
//this.setBoundingBox( new AxisAlignedBox( minimum, maximum ) );
AxisAlignedBox box = this.CallBase_getBoundingBox();
box.SetMinimum(minimum.x, minimum.y, minimum.z);
box.SetMaximum(maximum.x, maximum.y, maximum.z);
// Set the current radius
mRadius = (float)Math.Sqrt(Math.Max((double)minimum.LengthSquared, (double)maximum.LengthSquared));
}
/// Builds an AABB from a list of points
public static AxisAlignedBox AABBfromPoints(List <Vector3> points)
{
AxisAlignedBox aabb = new AxisAlignedBox();
if (points.Count == 0)
{
return(aabb);
}
aabb.SetMinimum(points[0]);
aabb.SetMaximum(points[0]);
//for (List< Vector3>.Enumerator it = points.GetEnumerator(); it.MoveNext(); ++it.)
foreach (var it in points)
{
aabb.SetMinimum(min(aabb.Minimum, it));
aabb.SetMaximum(max(aabb.Maximum, it));
}
return(aabb);
}
/// Builds an AABB from a list of points
public static AxisAlignedBox AABBfromPoints(List<Vector3> points) {
AxisAlignedBox aabb = new AxisAlignedBox();
if (points.Count == 0)
return aabb;
aabb.SetMinimum(points[0]);
aabb.SetMaximum(points[0]);
//for (List< Vector3>.Enumerator it = points.GetEnumerator(); it.MoveNext(); ++it.)
foreach (var it in points) {
aabb.SetMinimum(min(aabb.Minimum, it));
aabb.SetMaximum(max(aabb.Maximum, it));
}
return aabb;
}
