3D Grid
3D Grid is a subdivision of Axis Aligned Bounding Box of an object into
equal boxes (Subdivision Boxes). 3D
Grids are used for rough estimations of geometric properties of an abject
like volume of an object.
Grid is determined by a 3D box it occupies called
box of the grid, and number of cells in
each dimension. In the current release all boxes in the grid are assumed to
be cubes (all dimensions are equal). Normally box of the grid is calculated
slightly larger than Axis Aligned Bounding Box of the object the grid
belongs to.
Individual Subdivision boxes are identified by its three-dimensional
index, normally of type KCN3.
Point with coordinate located at an upper limit of a cell is assumed to
belong to the next cell.
I3DGrid interface allows
programming 3D grids.
See also Surfaces
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