36 lines
1.6 KiB
Plaintext
36 lines
1.6 KiB
Plaintext
[/============================================================================
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Boost.Geometry (aka GGL, Generic Geometry Library)
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Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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Copyright (c) 2009-2012 Barend Gehrels, Amsterdam, the Netherlands.
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Copyright (c) 2009-2012 Bruno Lalande, Paris, France.
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Use, modification and distribution is subject to the Boost Software License,
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Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================/]
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[section:concept_segment Segment Concept]
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[heading Description]
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[concept Segment..segment]
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[heading Concept Definition]
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* there must be a specialization of `traits::tag` defining `segment_tag` as type
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* there must be a specialization of `traits::point_type` to define the underlying point type
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(even if it does not consist of points, it should define this type, to indicate the points it can work with)
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* there must be a specialization of `traits::indexed_access`, per index and per dimension, with two functions:
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* `get` to get a coordinate value
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* `set` to set a coordinate value (this one is not checked for ConstSegment)
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[note The segment concept is similar to the box concept, defining using another tag.
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However, the box concept assumes the index as `min_corner`, `max_corner`, while for the segment concept, there is no assumption.]
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[heading Available Models]
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* [link geometry.reference.models.model_segment model::segment]
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* [link geometry.reference.models.model_referring_segment referring segment]
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[endsect]
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