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Boolean operations on composite polygons and clips.
Classes BooleanFHP and BooleanGH
are composites and provide boolean operations
intersection
, difference
,
reverse-difference
and union
.
Note: A clip is defined as a single, usually closed polygon, a composite is a collection of one or more clips.
See Also: Forster-Hormann-Popa and Greiner-Hormann.
Version: 23.03.09
Classes | |
_LatLonBase (INTERNAL) Base class for LatLonFHP and LatLonGH. |
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LatLonFHP A point or intersection in a BooleanFHP clip. |
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LatLonGH A point or intersection in a BooleanGH clip. |
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_CompositeFHP (INTERNAL) A list of _Clips representing a composite
polygon of LatLonFHP points and mutual intersections.
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_CompositeGH (INTERNAL) A circular, doubly-linked list of LatLonGHs, representing the original points of a polygon plus -if any- the intersections with another. |
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BooleanFHP Composite polygon class providing boolean operations between two composite polygons using Forster-Hormann-Popa's C++ implementation
transcoded to pure Python.
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BooleanGH Composite polygon class providing boolean operations between two composite polygons using the Greiner-Hormann algorithm, Correia's implementation modified and extended.
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Variables | |
__all__ = _ALL_LAZY.booleans
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