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add tests for grid rendering with point_symbolizer

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This commit is contained in:
Dane Springmeyer 2012-07-18 17:29:22 -07:00
parent b7630a3eb8
commit 587f0131a2
1 changed files with 30 additions and 5 deletions
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35
tests/python_tests/render_grid_test.py
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@ -2,7 +2,7 @@
# -*- coding: utf-8 -*-
from nose.tools import *
from utilities import execution_path
import os, mapnik
try:
@ -10,6 +10,11 @@ try:
except ImportError:
import simplejson as json
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('.'))
# first pass impl where resolution is passed as render
# time rather than encoding time, likely will be deprecated soon
grid_correct_old = {"keys": ["", "North West", "North East", "South West", "South East"], "data": {"South East": {"Name": "South East"}, "North East": {"Name": "North East"}, "North West": {"Name": "North West"}, "South West": {"Name": "South West"}}, "grid": [" ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " !!! ### ", " !!!!! ##### ", " !!!!! ##### ", " !!! ### ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " $$$$ %%%% ", " $$$$$ %%%%% ", " $$$$$ %%%%% ", " $$$ %%% ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " "]}
@ -39,7 +44,7 @@ def resolve(grid,row,col):
return grid['data'].get(key)
def create_grid_map(width,height):
def create_grid_map(width,height,marker=True):
ds = mapnik.MemoryDatasource()
context = mapnik.Context()
context.push('Name')
@ -64,9 +69,12 @@ def create_grid_map(width,height):
ds.add_feature(f)
s = mapnik.Style()
r = mapnik.Rule()
symb = mapnik.MarkersSymbolizer()
symb.width = mapnik.Expression('10')
symb.height = mapnik.Expression('10')
if marker:
symb = mapnik.MarkersSymbolizer()
symb.width = mapnik.Expression('10')
symb.height = mapnik.Expression('10')
else:
symb = mapnik.PointSymbolizer(mapnik.PathExpression('../data/images/dummy.png'))
symb.allow_overlap = True
r.symbols.append(symb)
@ -274,6 +282,23 @@ def test_line_rendering():
eq_(utf1,line_expected,show_grids('line',utf1,line_expected))
#open('test.json','w').write(json.dumps(grid.encode()))
point_expected = {"keys": ["", "3", "4", "2", "1"], "data": {"1": {"Name": "South East"}, "3": {"Name": "North West"}, "2": {"Name": "South West"}, "4": {"Name": "North East"}}, "grid": [" ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " !!!! #### ", " !!!! #### ", " !!!! #### ", " !!!! #### ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " $$$$ %%%% ", " $$$$ %%%% ", " $$$$ %%%% ", " $$$$ %%%% ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " ", " "]}
def test_point_symbolizer_grid():
width,height = 256,256
m = create_grid_map(width,height,marker=False)
ul_lonlat = mapnik.Coord(142.30,-38.20)
lr_lonlat = mapnik.Coord(143.40,-38.80)
m.zoom_to_box(mapnik.Box2d(ul_lonlat,lr_lonlat))
#mapnik.render_to_file(m,'test.png')
#print mapnik.save_map_to_string(m)
grid = mapnik.Grid(m.width,m.height)
mapnik.render_layer(m,grid,layer=0,fields=['Name'])
utf1 = grid.encode()
#open('test.json','w').write(json.dumps(grid.encode()))
eq_(utf1,point_expected,show_grids('point-sym',utf1,point_expected))
if __name__ == "__main__":
setup()
[eval(run)() for run in dir() if 'test_' in run]