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
90
91
92
|
/*****************************************************************************
*
* 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
*
*****************************************************************************/
//$Id$
// boost
#include <boost/python.hpp>
#include <boost/python/def.hpp>
#include <boost/python/exception_translator.hpp>
#include <boost/python/manage_new_object.hpp>
#include <boost/python/iterator.hpp>
#include <boost/ptr_container/ptr_vector.hpp>
// mapnik
#include <mapnik/geometry.hpp>
#include <mapnik/wkt/wkt_factory.hpp>
#include <mapnik/wkb.hpp>
namespace {
using mapnik::from_wkt;
using mapnik::geometry_type;
typedef boost::ptr_vector<geometry_type> path_type;
geometry_type const& getitem_impl(path_type & p, int key)
{
if (key >=0 && key < p.size())
return p[key];
PyErr_SetString(PyExc_IndexError, "Index is out of range");
throw boost::python::error_already_set();
}
void from_wkt_impl(path_type& p, std::string const& wkt)
{
bool result = mapnik::from_wkt(wkt, p);
if (!result) throw std::runtime_error("Failed to parse WKT");
}
void from_wkb_impl(path_type& p, std::string const& wkb)
{
mapnik::geometry_utils::from_wkb(p, wkb.c_str(), wkb.size(), true);
}
}
void export_geometry()
{
using namespace boost::python;
enum_<mapnik::eGeomType>("GeometryType")
.value("Point",mapnik::Point)
.value("LineString",mapnik::LineString)
.value("Polygon",mapnik::Polygon)
.value("MultiPoint",mapnik::MultiPoint)
.value("MultiLineString",mapnik::MultiLineString)
.value("MultiPolygon",mapnik::MultiPolygon)
;
using mapnik::geometry_type;
class_<geometry_type, std::auto_ptr<geometry_type>,boost::noncopyable>("Geometry2d",no_init)
.def("envelope",&geometry_type::envelope)
// .def("__str__",&geometry_type::to_string)
.def("type",&geometry_type::type)
.def("area",&geometry_type::area)
// TODO add other geometry_type methods
;
class_<path_type,boost::noncopyable>("Path")
.def("__getitem__", getitem_impl,return_value_policy<reference_existing_object>())
.def("__len__", &path_type::size)
.def("from_wkt",from_wkt_impl)
.def("from_wkb",from_wkb_impl)
;
}
|
