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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import json
from nose.tools import eq_
import mapnik
from .utilities import run_all
# 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_memory():
expected_color = mapnik.Color('white')
projection = '+init=epsg:4326'
ds = mapnik.MemoryDatasource()
context = mapnik.Context()
feat = mapnik.Feature.from_geojson(json.dumps(geojson), context)
ds.add_feature(feat)
s = mapnik.Style()
r = mapnik.Rule()
sym = mapnik.PolygonSymbolizer()
sym.fill = expected_color
r.symbols.append(sym)
s.rules.append(r)
lyr = mapnik.Layer('Layer', projection)
lyr.datasource = ds
lyr.styles.append('style')
m = mapnik.Map(256, 256, projection)
m.background_color = mapnik.Color('green')
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())
def test_that_coordinates_do_not_overflow_and_polygon_is_rendered_csv():
expected_color = mapnik.Color('white')
projection = '+init=epsg:4326'
ds = mapnik.MemoryDatasource()
context = mapnik.Context()
feat = mapnik.Feature.from_geojson(json.dumps(geojson), context)
ds.add_feature(feat)
geojson_string = "geojson\n'%s'" % json.dumps(geojson['geometry'])
ds = mapnik.Datasource(**{'type': 'csv', 'inline': geojson_string})
s = mapnik.Style()
r = mapnik.Rule()
sym = mapnik.PolygonSymbolizer()
sym.fill = expected_color
r.symbols.append(sym)
s.rules.append(r)
lyr = mapnik.Layer('Layer', projection)
lyr.datasource = ds
lyr.styles.append('style')
m = mapnik.Map(256, 256, projection)
m.background_color = mapnik.Color('green')
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_")))
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