Namespace NetTopologySuite.Operation.Distance3D

Classes

AxisPlaneCoordinateSequence

A CoordinateSequence wrapper which projects 3D coordinates into one of the three Cartesian axis planes, using the standard orthonormal projection (i.e. simply selecting the appropriate ordinates into the XY ordinates). The projected data is represented as 2D coordinates.

Distance3DOp

Find two points on two 3D Geometrys which lie within a given distance, or else are the nearest points on the geometries (in which case this also provides the distance between the geometries).

3D geometries have vertex Z ordinates defined. 3D Polygons are assumed to lie in a single plane (which is enforced if not actually the case). 3D LineStrings and Points may have any configuration.

The distance computation also finds a pair of points in the input geometries which have the minimum distance between them. If a point lies in the interior of a line segment, the coordinate computed is a close approximation to the exact point.

The algorithms used are straightforward O(n^2) comparisons. This worst-case performance could be improved on by using Voronoi techniques or spatial indexes.

PlanarPolygon3D

Models a polygon lying in a plane in 3-dimensional Cartesian space. The polygon representation is supplied by a Polygon, containing coordinates with XYZ ordinates. 3D polygons are assumed to lie in a single plane. The plane best fitting the polygon coordinates is computed and is represented by a Plane3D.