public static AxisAlignedBox3d Bounds(IPointSet source)
{
AxisAlignedBox3d bounds = AxisAlignedBox3d.Empty;
foreach (int vid in source.VertexIndices())
{
bounds.Contain(source.GetVertex(vid));
}
return(bounds);
}
public static AxisAlignedBox3d Bounds <T>(IEnumerable <T> values, Func <T, Vector3D> PositionF)
{
AxisAlignedBox3d box = AxisAlignedBox3d.Empty;
foreach (T t in values)
{
box.Contain(PositionF(t));
}
return(box);
}
/// <summary>
/// compute axis-aligned bounds of set of points after transforming into frame f
/// </summary>
public static AxisAlignedBox3d BoundsInFrame(IEnumerable <Vector3D> values, Frame3f f)
{
AxisAlignedBox3d box = AxisAlignedBox3d.Empty;
foreach (Vector3D v in values)
{
box.Contain(f.ToFrameP(v));
}
return(box);
}
// AABB of transformed AABB (corners)
public static AxisAlignedBox3d Bounds(ref AxisAlignedBox3d boxIn, Func <Vector3D, Vector3D> TransformF)
{
if (TransformF == null)
{
return(boxIn);
}
AxisAlignedBox3d box = new AxisAlignedBox3d(TransformF(boxIn.Corner(0)));
for (int i = 1; i < 8; ++i)
{
box.Contain(TransformF(boxIn.Corner(i)));
}
return(box);
}
public AxisAlignedBox3d ToAABB()
{
// [TODO] probably more efficient way to do this...at minimum can move center-shift
// to after the containments...
Vector3D extAxis0 = Extent.x * AxisX;
Vector3D extAxis1 = Extent.y * AxisY;
Vector3D extAxis2 = Extent.z * AxisZ;
AxisAlignedBox3d result = new AxisAlignedBox3d(Center - extAxis0 - extAxis1 - extAxis2);
result.Contain(Center + extAxis0 - extAxis1 - extAxis2);
result.Contain(Center + extAxis0 + extAxis1 - extAxis2);
result.Contain(Center - extAxis0 + extAxis1 - extAxis2);
result.Contain(Center - extAxis0 - extAxis1 + extAxis2);
result.Contain(Center + extAxis0 - extAxis1 + extAxis2);
result.Contain(Center + extAxis0 + extAxis1 + extAxis2);
result.Contain(Center - extAxis0 + extAxis1 + extAxis2);
return(result);
}
