8010d5433f
2. Pass resolution to bbox query
3. Use variant<int,double,string> as parameter value e.g in Python:
ds = Raster(file="/path/to/file",lox = 12312.4,.....)
Added extractor facility to work with mapnik::parameter (C++):
mapnik::parameters params;
params["parameter0"] = 123.456;
params["parameter1"] = "123.456"; // initialize with string extract double later
boost::optional<double> val0 = params.get<double>("parameter0");
if (val0)
{
std::cout << *val0;
}
// with default value. NOTE: there is no 'parameter2' in params
boost::optional<double> val2 = params.get<double>("parameter2",654.321);
std::cout << * val2;
//
4. Added Gdal factory method in __init__.py
ds = Gdal(file="/tmp/file.tiff")
63 lines
2 KiB
C++
63 lines
2 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2006 Artem Pavlenko, Jean-Francois Doyon
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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//$Id$
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#include <boost/python.hpp>
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#include <mapnik/coord.hpp>
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#include <mapnik/projection.hpp>
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namespace {
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mapnik::coord2d forward(mapnik::coord2d const& pt,
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mapnik::projection const& prj)
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{
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double x = pt.x;
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double y = pt.y;
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prj.forward(x,y);
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return mapnik::coord2d(x,y);
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}
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mapnik::coord2d inverse(mapnik::coord2d const& pt,
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mapnik::projection const& prj)
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{
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double x = pt.x;
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double y = pt.y;
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prj.inverse(x,y);
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return mapnik::coord2d(x,y);
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}
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}
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void export_projection ()
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{
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using namespace boost::python;
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using mapnik::projection;
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class_<projection>("Projection", init<optional<std::string const&> >())
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.def ("params", make_function(&projection::params,
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return_value_policy<copy_const_reference>()))
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.add_property ("geographic",&projection::is_geographic)
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;
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def("forward_",&forward);
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def("inverse_",&inverse);
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}
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