#!/usr/bin/env python # -*- coding: utf-8 -*- from nose.tools import eq_ from utilities import run_all import mapnik import json # geojson box of the world geojson = { "type": "Feature", "properties": { }, "geometry": { "type": "Polygon", "coordinates": [ [ [ -17963313.143242701888084, -6300857.11560364998877 ], [ -17963313.143242701888084, 13071343.332991421222687 ], [ 7396658.353099936619401, 13071343.332991421222687 ], [ 7396658.353099936619401, -6300857.11560364998877 ], [ -17963313.143242701888084, -6300857.11560364998877 ] ] ] } } def test_that_coordinates_do_not_overflow_and_polygon_is_rendered(): expected_color = mapnik.Color('white') ds = mapnik.MemoryDatasource() context = mapnik.Context() ds.add_feature(mapnik.Feature.from_geojson(json.dumps(geojson),context)) s = mapnik.Style() r = mapnik.Rule() sym = mapnik.PolygonSymbolizer() sym.fill = expected_color sym.clip = False r.symbols.append(sym) s.rules.append(r) lyr = mapnik.Layer('Layer') lyr.datasource = ds lyr.styles.append('style') m = mapnik.Map(256,256) m.background_color = mapnik.Color('black') m.append_style('style',s) m.layers.append(lyr) # 17/20864/45265.png m.zoom_to_box(mapnik.Box2d(-13658379.710221574,6197514.253362091,-13657768.213995293,6198125.749588372)) # works 15/5216/11316.png #m.zoom_to_box(mapnik.Box2d(-13658379.710221574,6195679.764683247,-13655933.72531645,6198125.749588372)) im = mapnik.Image(256,256) mapnik.render(m,im) eq_(im.get_pixel(128,128),expected_color.packed()) if __name__ == "__main__": exit(run_all(eval(x) for x in dir() if x.startswith("test_")))