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- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // Copyright (c) 2015, Oracle and/or its affiliates.
- // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
- // Licensed under the Boost Software License version 1.0.
- // http://www.boost.org/users/license.html
- #ifndef BOOST_GEOMETRY_ALGORITHMS_VALIDITY_FAILURE_TYPE_HPP
- #define BOOST_GEOMETRY_ALGORITHMS_VALIDITY_FAILURE_TYPE_HPP
- namespace boost { namespace geometry
- {
- /*!
- \brief Enumerates the possible validity failure types for a geometry
- \ingroup enum
- \details The enumeration validity_failure_type enumerates the possible
- reasons for which a geometry may be found as invalid by the
- is_valid algorithm.
- Besides the values that indicate invalidity, there is an
- additional value (no_failure) that indicates validity.
- \qbk{
- [heading See also]
- [link geometry.reference.algorithms.is_valid The is_valid
- algorithm taking a reference to validity_failure_type as second argument]
- }
- */
- enum validity_failure_type
- {
- /// The geometry is valid
- ///
- no_failure = 0,
- /// The geometry has a very small number of points, e.g., less
- /// than 2 for linestrings, less than 3 for open rings, a closed
- /// multi-polygon that contains a polygon with less than 4 points, etc.
- /// (applies to linestrings, rings, polygons, multi-linestrings
- /// and multi-polygons)
- failure_few_points = 10,
- /// The topological dimension of the geometry is smaller than its
- /// dimension, e.g., a linestring with 3 identical points, an open
- /// polygon with an interior ring consisting of 3 collinear points, etc.
- /// (applies to linear and areal geometries, including segments
- /// and boxes)
- failure_wrong_topological_dimension = 11,
- /// The geometry contains spikes
- /// (applies to linear and areal geometries)
- failure_spikes = 12,
- /// The geometry has (consecutive) duplicate points
- /// (applies to areal geometries only)
- failure_duplicate_points = 13,
- /// The geometry is defined as closed, the starting/ending points
- /// are not equal
- /// (applies to areal geometries only)
- failure_not_closed = 20, // for areal geometries
- /// The geometry has invalid self-intersections.
- /// (applies to areal geometries only)
- failure_self_intersections = 21, // for areal geometries
- /// The actual orientation of the geometry is different from the one defined
- /// (applies to areal geometries only)
- failure_wrong_orientation = 22, // for areal geometries
- /// The geometry contains interior rings that lie outside the exterior ring
- /// (applies to polygons and multi-polygons only)
- failure_interior_rings_outside = 30, // for (multi-)polygons
- /// The geometry has nested interior rings
- /// (applies to polygons and multi-polygons only)
- failure_nested_interior_rings = 31, // for (multi-)polygons
- /// The interior of the geometry is disconnected
- /// (applies to polygons and multi-polygons only)
- failure_disconnected_interior = 32, // for (multi-)polygons
- /// The multi-polygon contains polygons whose interiors are not disjoint
- /// (applies to multi-polygons only)
- failure_intersecting_interiors = 40, // for multi-polygons
- /// The top-right corner of the box is lexicographically smaller
- /// than its bottom-left corner
- /// (applies to boxes only)
- failure_wrong_corner_order = 50, // for boxes
- /// The geometry has at least one point with an invalid coordinate
- /// (for example, the coordinate is a NaN)
- failure_invalid_coordinate = 60
- };
- }} // namespace boost::geometry
- #endif // BOOST_GEOMETRY_ALGORITHMS_VALIDITY_FAILURE_TYPE_HPP
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