2013-10-02 16:41:05 +00:00
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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2015-02-02 18:31:16 +00:00
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from nose.tools import eq_
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2013-10-02 04:21:55 +00:00
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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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2015-03-24 21:46:26 +00:00
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def test_that_coordinates_do_not_overflow_and_polygon_is_rendered_memory():
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2013-10-02 04:21:55 +00:00
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expected_color = mapnik.Color('white')
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2015-03-24 21:46:26 +00:00
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projection = '+init=epsg:4326'
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2013-10-02 04:21:55 +00:00
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ds = mapnik.MemoryDatasource()
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context = mapnik.Context()
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2015-03-24 21:46:26 +00:00
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feat = mapnik.Feature.from_geojson(json.dumps(geojson),context)
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ds.add_feature(feat)
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2013-10-02 04:21:55 +00:00
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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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r.symbols.append(sym)
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s.rules.append(r)
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2015-03-24 21:46:26 +00:00
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lyr = mapnik.Layer('Layer',projection)
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2013-10-02 04:21:55 +00:00
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lyr.datasource = ds
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lyr.styles.append('style')
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2015-03-24 21:46:26 +00:00
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m = mapnik.Map(256,256,projection)
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m.background_color = mapnik.Color('green')
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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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def test_that_coordinates_do_not_overflow_and_polygon_is_rendered_csv():
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expected_color = mapnik.Color('white')
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projection = '+init=epsg:4326'
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ds = mapnik.MemoryDatasource()
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context = mapnik.Context()
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feat = mapnik.Feature.from_geojson(json.dumps(geojson),context)
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ds.add_feature(feat)
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geojson_string = "geojson\n'%s'" % json.dumps(geojson['geometry'])
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ds = mapnik.Datasource(**{'type':'csv','inline':geojson_string})
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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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r.symbols.append(sym)
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s.rules.append(r)
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lyr = mapnik.Layer('Layer',projection)
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lyr.datasource = ds
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lyr.styles.append('style')
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m = mapnik.Map(256,256,projection)
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m.background_color = mapnik.Color('green')
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2013-10-02 04:21:55 +00:00
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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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2014-07-14 16:34:20 +00:00
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exit(run_all(eval(x) for x in dir() if x.startswith("test_")))
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