/// <summary>
/// Initializes a box that contains a generic piece of geometry.
/// This box will be aligned with an arbitrary plane.
/// </summary>
/// <param name="basePlane">Base plane for aligned bounding box.</param>
/// <param name="geometry">Geometry to box.</param>
public Box(Plane basePlane, GeometryBase geometry)
{
// David: this code is untested.
m_dx = new Interval(+1, -1);
m_dy = new Interval(0, 0);
m_dz = new Interval(0, 0);
m_plane = basePlane;
if (!m_plane.IsValid)
{
return;
}
Transform mapping = Geometry.Transform.ChangeBasis(Plane.WorldXY, m_plane);
BoundingBox bbox = geometry.GetBoundingBox(mapping);
m_dx = new Interval(bbox.Min.m_x, bbox.Max.m_x);
m_dy = new Interval(bbox.Min.m_y, bbox.Max.m_y);
m_dz = new Interval(bbox.Min.m_z, bbox.Max.m_z);
MakeValid();
}
/// <summary>
/// Initializes a box that contains a generic piece of geometry.
/// This box will be aligned with an arbitrary plane.
/// </summary>
/// <param name="basePlane">Base plane for aligned bounding box.</param>
/// <param name="geometry">Geometry to box.</param>
public Box(Plane basePlane, GeometryBase geometry)
{
// David: this code is untested.
m_dx = new Interval(+1, -1);
m_dy = new Interval(0, 0);
m_dz = new Interval(0, 0);
m_plane = basePlane;
if (!m_plane.IsValid) { return; }
Transform mapping = Geometry.Transform.ChangeBasis(Plane.WorldXY, m_plane);
BoundingBox bbox = geometry.GetBoundingBox(mapping);
m_dx = new Interval(bbox.Min.m_x, bbox.Max.m_x);
m_dy = new Interval(bbox.Min.m_y, bbox.Max.m_y);
m_dz = new Interval(bbox.Min.m_z, bbox.Max.m_z);
MakeValid();
}
/// <summary>
/// Unions the entire ObjectTable BBox with the geo BBox and, if layerIndex is less than the count of layerBBox,
/// unions the LayerBBoxes list at the layerIndex provided with the geo BBox.
/// </summary>
protected virtual void AddObjectBoundingBox (GeometryBase geo, int layerIndex)
{
ModelFile.Objects.GetBoundingBox().Union (geo.GetBoundingBox (false));
if ((layerIndex >= 0) && (layerIndex < LayerBBoxes.Count ()))
LayerBBoxes [layerIndex].Union (geo.GetBoundingBox (false));
}
