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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
, sum
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: 23.03.14
Classes | |
_LatLonBool (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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_Clip (INTERNAL) A doubly-linked list representing a closed polygon of LatLonFHP or LatLonGH points, duplicates and intersections with other _Clip s.
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_CompositeBase (INTERNAL) Base class for _CompositeFHP and
_CompositeGH .
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_CompositeFHP (INTERNAL) A list of _Clips representing a
composite of LatLonFHP points, duplicates and intersections.
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_CompositeGH (INTERNAL) A list of _Clips representing a
composite of LatLonGH points, duplicates and intersections.
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_BooleanBase | |
BooleanFHP Composite polygon class providing boolean operations between two composite polygons using the 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. |
Variables | |
__all__ = _ALL_LAZY.booleans
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