archive-gh-me/mapnik
1
0
Fork 0
mirror of https://github.com/mapnik/mapnik.git synced 2025-12-08 20:13:09 +00:00
Code Issues Projects Releases Wiki Activity

fix raster colorizer via python

Browse Source
This commit is contained in:
Dane Springmeyer 2013-09-25 15:22:57 -07:00
parent 8e047aa98e
commit feaddaeed0
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
bindings/python/mapnik_raster_colorizer.cpp
View File

@ -60,6 +60,15 @@ void add_stop5(raster_colorizer_ptr &rc, float v, colorizer_mode_enum m, color c
colorizer_stop stop(v, m, c);
rc->add_stop(stop);
}
mapnik::color get_color(raster_colorizer_ptr &rc, float value) {
unsigned rgba = rc->get_color(value);
unsigned r = (rgba & 0xff);
unsigned g = (rgba >> 8 ) & 0xff;
unsigned b = (rgba >> 16) & 0xff;
unsigned a = (rgba >> 24) & 0xff;
return mapnik::color(r,g,b,a);
}
colorizer_stops const& get_stops(raster_colorizer_ptr & rc)
{
return rc->get_stops();
@ -142,7 +151,7 @@ void export_raster_colorizer()
">>> colorizer = mapnik.RasterColorizer(mapnik.COLORIZER_LINEAR, default_color)\n"
">>> colorizer.add_stop(100, mapnik.COLORIZER_DISCRETE, mapnik.Color(\"#112233\"))\n"
)
.def("get_color", &raster_colorizer::get_color,
.def("get_color", get_color,
"Get the color assigned to a certain value in raster data.\n"
"\n"
"Usage:\n"