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validity_failure_type.hpp
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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