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#!/usr/bin/env python
from nose.tools import *
from utilities import execution_path, run_all
import os, mapnik
def setup():
# All of the paths used are relative, if we run the tests
# from another directory we need to chdir()
os.chdir(execution_path('.'))
# map has no layers
@raises(IndexError)
def test_map_query_throw1():
m = mapnik.Map(256,256)
m.zoom_to_box(mapnik.Box2d(-1,-1,0,0))
m.query_point(0,0,0)
# only positive indexes
@raises(IndexError)
def test_map_query_throw2():
m = mapnik.Map(256,256)
m.query_point(-1,0,0)
# map has never been zoomed (nodata)
@raises(RuntimeError)
def test_map_query_throw3():
m = mapnik.Map(256,256)
m.query_point(0,0,0)
if 'shape' in mapnik.DatasourceCache.plugin_names():
# map has never been zoomed (even with data)
@raises(RuntimeError)
def test_map_query_throw4():
m = mapnik.Map(256,256)
mapnik.load_map(m,'../data/good_maps/agg_poly_gamma_map.xml')
m.query_point(0,0,0)
# invalid coords in general (do not intersect)
@raises(RuntimeError)
def test_map_query_throw5():
m = mapnik.Map(256,256)
mapnik.load_map(m,'../data/good_maps/agg_poly_gamma_map.xml')
m.zoom_all()
m.query_point(0,9999999999999999,9999999999999999)
def test_map_query_works1():
m = mapnik.Map(256,256)
mapnik.load_map(m,'../data/good_maps/wgs842merc_reprojection.xml')
merc_bounds = mapnik.Box2d(-20037508.34,-20037508.34,20037508.34,20037508.34)
m.maximum_extent = merc_bounds
m.zoom_all()
fs = m.query_point(0,-11012435.5376, 4599674.6134) # somewhere in kansas
feat = fs.next()
eq_(feat.attributes['NAME_FORMA'],u'United States of America')
def test_map_query_works2():
m = mapnik.Map(256,256)
mapnik.load_map(m,'../data/good_maps/merc2wgs84_reprojection.xml')
wgs84_bounds = mapnik.Box2d(-179.999999975,-85.0511287776,179.999999975,85.0511287776)
m.maximum_extent = wgs84_bounds
# caution - will go square due to evil aspect_fix_mode backhandedness
m.zoom_all()
#mapnik.render_to_file(m,'works2.png')
# validate that aspect_fix_mode modified the bbox reasonably
eq_(str(m.envelope()),str(mapnik.Box2d(-179.999999975,-167.951396161,179.999999975,192.048603789)))
fs = m.query_point(0,-98.9264, 38.1432) # somewhere in kansas
feat = fs.next()
eq_(feat.attributes['NAME'],u'United States')
def test_map_query_in_pixels_works1():
m = mapnik.Map(256,256)
mapnik.load_map(m,'../data/good_maps/wgs842merc_reprojection.xml')
merc_bounds = mapnik.Box2d(-20037508.34,-20037508.34,20037508.34,20037508.34)
m.maximum_extent = merc_bounds
m.zoom_all()
fs = m.query_map_point(0,55,100) # somewhere in middle of us
feat = fs.next()
eq_(feat.attributes['NAME_FORMA'],u'United States of America')
def test_map_query_in_pixels_works2():
m = mapnik.Map(256,256)
mapnik.load_map(m,'../data/good_maps/merc2wgs84_reprojection.xml')
wgs84_bounds = mapnik.Box2d(-179.999999975,-85.0511287776,179.999999975,85.0511287776)
m.maximum_extent = wgs84_bounds
# caution - will go square due to evil aspect_fix_mode backhandedness
m.zoom_all()
# validate that aspect_fix_mode modified the bbox reasonably
eq_(str(m.envelope()),str(mapnik.Box2d(-179.999999975,-167.951396161,179.999999975,192.048603789)))
fs = m.query_map_point(0,55,100) # somewhere in Canada
feat = fs.next()
eq_(feat.attributes['NAME'],u'Canada')
if __name__ == "__main__":
setup()
run_all(eval(x) for x in dir() if x.startswith("test_"))
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