f1393cc019
bool hit_test(double x, double y, double tol);
2. added image_view(unsigned x, unsigned y, unsigned width, unsigned height)
allowing to select region from image data e.g (in Python):
im = Image(2048,2048)
view = im.view(0,0,256,256)
save_to_file(filename,type, view)
3. changed envelope method to return vy value in datasource classes
4. features_at_point impl for shape and postgis plug-ins
50 lines
1.9 KiB
C++
50 lines
1.9 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 <boost/python/module.hpp>
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#include <boost/python/def.hpp>
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#include <mapnik/graphics.hpp>
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using mapnik::Image32;
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using namespace boost::python;
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PyObject* rawdata( Image32 const& im)
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{
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int size = im.width() * im.height() * 4;
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return ::PyString_FromStringAndSize((const char*)im.raw_data(),size);
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}
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void export_image()
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{
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using namespace boost::python;
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class_<Image32>("Image","This class represents a 32 bit image.",init<int,int>())
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.def("width",&Image32::width)
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.def("height",&Image32::height)
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.def("view",&Image32::get_view)
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.add_property("background",make_function
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(&Image32::getBackground,return_value_policy<copy_const_reference>()),
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&Image32::setBackground, "The background color of the image.")
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;
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def("rawdata",&rawdata);
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}
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