1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2006 Artem Pavlenko, Jean-Francois Doyon
*
* 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
*
*****************************************************************************/
//$Id$
#include <boost/python.hpp>
#include <mapnik/coord.hpp>
#include <mapnik/projection.hpp>
namespace {
mapnik::coord2d forward_pt(mapnik::coord2d const& pt,
mapnik::projection const& prj)
{
double x = pt.x;
double y = pt.y;
prj.forward(x,y);
return mapnik::coord2d(x,y);
}
mapnik::coord2d inverse_pt(mapnik::coord2d const& pt,
mapnik::projection const& prj)
{
double x = pt.x;
double y = pt.y;
prj.inverse(x,y);
return mapnik::coord2d(x,y);
}
mapnik::Envelope<double> forward_env(mapnik::Envelope<double> const & box,
mapnik::projection const& prj)
{
double minx = box.minx();
double miny = box.miny();
double maxx = box.maxx();
double maxy = box.maxy();
prj.forward(minx,miny);
prj.forward(maxx,maxy);
return mapnik::Envelope<double>(minx,miny,maxx,maxy);
}
mapnik::Envelope<double> inverse_env(mapnik::Envelope<double> const & box,
mapnik::projection const& prj)
{
double minx = box.minx();
double miny = box.miny();
double maxx = box.maxx();
double maxy = box.maxy();
prj.inverse(minx,miny);
prj.inverse(maxx,maxy);
return mapnik::Envelope<double>(minx,miny,maxx,maxy);
}
}
void export_projection ()
{
using namespace boost::python;
using mapnik::projection;
class_<projection>("Projection", init<optional<std::string const&> >())
.def ("params", make_function(&projection::params,
return_value_policy<copy_const_reference>()))
.add_property ("geographic",&projection::is_geographic)
;
def("forward_",&forward_pt);
def("inverse_",&inverse_pt);
def("forward_",&forward_env);
def("inverse_",&inverse_env);
}
|
