python-mapnik/src/mapnik_query.cpp at master · mapnik/python-mapnik · GitHub

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/*****************************************************************************

* This file is part of Mapnik (c++ mapping toolkit)

* This library is free software; you can redistribute it and/or

* modify it under the terms of the GNU Lesser General Public

* License as published by the Free Software Foundation; either

* version 2.1 of the License, or (at your option) any later version.

* This library is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General Public

* License along with this library; if not, write to the Free Software

* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

*****************************************************************************/

// mapnik

#include <mapnik/config.hpp>

#include <mapnik/query.hpp>

#include <mapnik/geometry/box2d.hpp>

#include "python_to_value.hpp"

#include "mapnik_value_converter.hpp"

//stl

#include <string>

#include <set>

//pybind11

#include <pybind11/pybind11.h>

#include <pybind11/stl.h>

namespace py = pybind11;

void export_query(py::module const& m)

{

using mapnik::query;

using mapnik::box2d;

py::class_<query>(m, "Query", "a spatial query data object")

.def(py::init<box2d<double>,query::resolution_type const&, double>())

.def(py::init<box2d<double>>())

.def_property_readonly("resolution", [] (query const& q) {

auto resolution = q.resolution();

return py::make_tuple(std::get<0>(resolution),

std::get<1>(resolution));

})

.def_property_readonly("scale_denominator", &query::scale_denominator)

.def_property_readonly("bbox", &query::get_bbox)

.def_property_readonly("unbuffered_bbox", &query::get_unbuffered_bbox)

.def_property_readonly("property_names",[] (query const& q){

auto names = q.property_names();

py::list obj;

for (std::string const& name : names)

{

obj.append(name);

}

return obj;

})

.def("add_property_name", &query::add_property_name)

.def_property("variables",

[] (query const& q) {

py::dict d;

for (auto kv : q.variables())

{

d[kv.first.c_str()] = kv.second;

}

return d;

[] (query& q, py::dict const& d) {

mapnik::attributes vars = mapnik::dict2attr(d);

q.set_variables(vars);

})

;

}

python-mapnik/src/mapnik_query.cpp at master · mapnik/python-mapnik · GitHub

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