Hi Joel, On 20-3-2013 2:54, Joel Markham wrote:
Trying to use the boost geometry library.
Have a very simple example from the boost geometry home page
From which homepage?
int main(int argc, const char * argv[]) { double points[][2] = {{2.0, 1.3}, {4.1, 3.0}, {5.3, 2.6}, {2.9, 0.7}, {2.0, 1.3}}; bgm::polygon<bgm::d2::point_xy<double> > poly; bg::append(poly, points); boost::tuple<double, double> p = boost::make_tuple(3.7, 2.0); std::cout << "Point p is in polygon? " << std::boolalpha << bg::within(p, poly) << std::endl; ... }
When trying to build on my Mac I get compiler warnings:
point_type.hpp No matching function for call to 'assertion_failed"
coordinate_type.hpp No matching function for call to 'assertion_failed"
convert_point_to_point.hpp Call to function 'get that is neither visible in the template definition or found...
access.hpp Nom member named 'get in boost::geometry::core_dispatch...
Your example is not complete (no headers) so I cannot see what is missing here. The complete version below compiles for me. Registration of tuples is necessary (to indicate which coordinate system). Same for C-Arrays, if append is used like this (it can be done differently too). Regards, Barend ------------------------ #include <boost/geometry.hpp> #include <boost/geometry/geometries/point_xy.hpp> #include <boost/geometry/geometries/polygon.hpp> #include <boost/geometry/multi/geometries/multi_polygon.hpp> #include <boost/geometry/geometries/adapted/boost_tuple.hpp> #include <boost/geometry/geometries/adapted/c_array.hpp> #include <iostream> namespace bg = boost::geometry; namespace bgm = boost::geometry::model; BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian) BOOST_GEOMETRY_REGISTER_C_ARRAY_CS(cs::cartesian) int main(int argc, const char * argv[]) { double points[][2] = {{2.0, 1.3}, {4.1, 3.0}, {5.3, 2.6}, {2.9, 0.7}, {2.0, 1.3}}; bgm::polygon<bgm::d2::point_xy<double> > poly; bg::append(poly, points); boost::tuple<double, double> p = boost::make_tuple(3.7, 2.0); std::cout << "Point p is in polygon? " << std::boolalpha << bg::within(p, poly) << std::endl; return 0; }