| TerraLib 4.1

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Modules
Topological operators
Geometry algorithms

## Modules

| Equals test
| Disjoint test
| Intersects test
| Touch test
| Crosses test
| Within test
| Contains test
| Overlaps test
| Covered by test
| Covers test
| Relation test

## Detailed Description

Functions that test topologival relation between two objects.

    	The topological operators are based on the intersection of interior, exterior and boundary of geometries:
      ------------------------------------------------------------------------------------------------------------------
     | TeGeometry   |  INTERIOR                        | BOUNDARY           | EXTERIOR                                |
      ------------------------------------------------------------------------------------------------------------------
     | TePoint      | The point itself                 | Empty              | Everything except interior              |
     | TeLine2D     | All points except the end points | The two end points | Everything except interior and boundary |
     | TeLinearRing | All points                       | Empty              | Everything except interior and boundary |
     | TePolygon    | Everything between the external  | All rings          | Everything except interior and boundary |
     |              | ring and the inner rings         |                    |                                         |
      ------------------------------------------------------------------------------------------------------------------

    We use:
    	- I: for Interior
    	- E: for Exterior
    	- B: for Boundary
    	- inter: Intersects
    	- ^: AND
    	- v: OR
    	- A = refer to two-dimensional geometries (TePolygon and TePolygonSet)
    	- L = refer to one-dimensional geometries (TeLine2D and TeLineSet)
    	- P = refer to 0-dimensional geometries   (TePoint and TePointSet)

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