
Geometry : 
Subject: [geometry] self intersection doesn't find collinear intersection types
From: sergei benkovich (sergei1503_at_[hidden])
Date: 20160511 03:27:08
Hey,
i have an issue where i find self intersections in a polygon.but it doesn't
seem to find the method_collinear type.
this is the piece of code:
namespace bg = boost::geometry;
using namespace std;
typedef bg::model::d2::point_xy<double> point_2d;
typedef bg::model::polygon<boost::geometry::model::d2::point_xy<double> >
Polygon;
Polygon poly;
poly.outer().push_back(point_2d(0, 10));
poly.outer().push_back(point_2d(10, 0));
typedef bg::point_type<Polygon>::type point_type;
typedef bg::detail::overlay::traversal_turn_info
<point_type,typename bg::segment_ratio_type<point_type,
bg::detail::no_rescale_policy>::type> turn_info;
bg::detail::self_get_turn_points::no_interrupt_policy noInteruptPolicy;
bg::detail::no_rescale_policy robust_policy;
std::vector<turn_info> turns;
bg::self_turns<bg::detail::overlay::assign_null_policy>(
poly, robust_policy, turns, noInteruptPolicy);
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