|
| enum | PlaneTypeE { NONE =-1,
ALONG_X,
ALONG_Y,
ALONG_Z
} |
| | As the nodes of the tree are not subdivided by arbitrary planes, but only by planes that are parallel to the major axes, we do not store a full Plane3T<> member with the nodes, but only a "compacted" representation: The type expresses which axes the plane is parallel to, the distance is the offset from the origin. More...
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| |
As the nodes of the tree are not subdivided by arbitrary planes, but only by planes that are parallel to the major axes, we do not store a full Plane3T<> member with the nodes, but only a "compacted" representation: The type expresses which axes the plane is parallel to, the distance is the offset from the origin.
| Enumerator |
|---|
| NONE |
No plane at all. Used for nodes that are actually leaves.
|
| ALONG_X |
A plane with normal vector (1, 0, 0), parallel to the y- and z-axis.
|
| ALONG_Y |
A plane with normal vector (0, 1, 0), parallel to the x- and z-axis.
|
| ALONG_Z |
A plane with normal vector (0, 0, 1), parallel to the x- and y-axis.
|
The constructor.
- Parameters
-
| BB | The bounding box of this node (one "half" of the box of the parent). |
| OrthoBspTreeT::NodeT::~NodeT |
( |
| ) |
|
| bool OrthoBspTreeT::NodeT::DetermineSplitPlane |
( |
| ) |
|
Determines an axis-aligned split plane for further BSP partitioning of the contents of this node.
For choosing the split plane, the method considers the bounding-box planes of all objects (polygons, brushes, terrains) of this node and all its ancestors, provided that they are wholly or partially in BB. When a split plane was found, the m_PlaneType and m_PlaneDist members are appropriately set and true is returned, otherwise they are initialized with NONE and 0, respectively, and the return value is false.
- Returns
- whether a split plane has successfully been determined.
| void OrthoBspTreeT::NodeT::FindMismatches |
( |
ArrayT< MapElementT * > & |
Mismatches | ) |
const |
Finds any map elements in the (sub-)tree whose spatial position disagrees with their position in the tree.
| unsigned long OrthoBspTreeT::NodeT::GetNumNodes |
( |
| ) |
const |
Returns the number of nodes in the (sub-)tree at and below this node.
| void OrthoBspTreeT::NodeT::Insert |
( |
MapElementT * |
Elem | ) |
|
Recursively inserts the given element into the (sub-)tree at and below this node.
| bool OrthoBspTreeT::NodeT::IntersectsAllChildren |
( |
const BoundingBox3fT & |
BB | ) |
const |
Determines whether the given BB intersects (is partly inside) each child of this node.
- Parameters
-
| BB | The bounding box that is tested for intersection. |
| void OrthoBspTreeT::NodeT::Remove |
( |
MapElementT * |
Elem | ) |
|
Removes the given element from the (sub-)tree at and below this node (the structure of the tree remains unchanged).
The documentation for this class was generated from the following files:
1.8.6 