37 lines
1.5 KiB
Python
37 lines
1.5 KiB
Python
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from nose.tools import *
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from utilities import run_all
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import mapnik
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import json
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# geojson box of the world
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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 ] ] ] } }
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def test_that_coordinates_do_not_overflow_and_polygon_is_rendered():
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expected_color = mapnik.Color('white')
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ds = mapnik.MemoryDatasource()
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context = mapnik.Context()
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ds.add_feature(mapnik.Feature.from_geojson(json.dumps(geojson),context))
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s = mapnik.Style()
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r = mapnik.Rule()
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sym = mapnik.PolygonSymbolizer()
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sym.fill = expected_color
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sym.clip = False
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r.symbols.append(sym)
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s.rules.append(r)
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lyr = mapnik.Layer('Layer')
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lyr.datasource = ds
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lyr.styles.append('style')
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m = mapnik.Map(256,256)
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m.append_style('style',s)
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m.layers.append(lyr)
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# 17/20864/45265.png
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m.zoom_to_box(mapnik.Box2d(-13658379.710221574,6197514.253362091,-13657768.213995293,6198125.749588372))
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# works 15/5216/11316.png
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#m.zoom_to_box(mapnik.Box2d(-13658379.710221574,6195679.764683247,-13655933.72531645,6198125.749588372))
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im = mapnik.Image(256,256)
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mapnik.render(m,im)
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eq_(im.get_pixel(128,128),expected_color.packed())
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if __name__ == "__main__":
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run_all(eval(x) for x in dir() if x.startswith("test_"))
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