DG Kernel Documentation


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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