def test_textsymbolizer_pickle():
ts = mapnik2.TextSymbolizer(mapnik2.Expression('[Field_Name]'),
'Font Name', 8, mapnik2.Color('black'))
eq_(str(ts.name), str(mapnik2.Expression('[Field_Name]')))
eq_(ts.face_name, 'Font Name')
eq_(ts.text_size, 8)
eq_(ts.fill, mapnik2.Color('black'))
raise Todo("text_symbolizer pickling currently disabled")
ts2 = pickle.loads(pickle.dumps(ts, pickle.HIGHEST_PROTOCOL))
eq_(ts.name, ts2.name)
eq_(ts.face_name, ts2.face_name)
eq_(ts.allow_overlap, ts2.allow_overlap)
eq_(ts.displacement, ts2.displacement)
eq_(ts.anchor, ts2.anchor)
eq_(ts.fill, ts2.fill)
eq_(ts.force_odd_labels, ts2.force_odd_labels)
eq_(ts.halo_fill, ts2.halo_fill)
eq_(ts.halo_radius, ts2.halo_radius)
eq_(ts.label_placement, ts2.label_placement)
eq_(ts.minimum_distance, ts2.minimum_distance)
eq_(ts.text_ratio, ts2.text_ratio)
eq_(ts.text_size, ts2.text_size)
eq_(ts.wrap_width, ts2.wrap_width)
eq_(ts.vertical_alignment, ts2.vertical_alignment)
eq_(ts.label_spacing, ts2.label_spacing)
eq_(ts.label_position_tolerance, ts2.label_position_tolerance)
# 22.5 * M_PI/180.0 initialized by default
assert_almost_equal(s.max_char_angle_delta, 0.39269908169872414)
eq_(ts.wrap_character, ts2.wrap_character)
eq_(ts.text_transform, ts2.text_transform)
eq_(ts.line_spacing, ts2.line_spacing)
eq_(ts.character_spacing, ts2.character_spacing)
# r1341
eq_(ts.wrap_before, ts2.wrap_before)
eq_(ts.horizontal_alignment, ts2.horizontal_alignment)
eq_(ts.justify_alignment, ts2.justify_alignment)
eq_(ts.opacity, ts2.opacity)
# r2300
eq_(s.minimum_padding, 0.0)
raise Todo(
"FontSet pickling support needed: http://trac.mapnik2.org/ticket/348")
eq_(ts.fontset, ts2.fontset)
def test_map_init_from_string():
map_string = '''<Map background-color="steelblue" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
<Style name="My Style">
<Rule>
<PolygonSymbolizer>
<CssParameter name="fill">#f2eff9</CssParameter>
</PolygonSymbolizer>
<LineSymbolizer>
<CssParameter name="stroke">rgb(50%,50%,50%)</CssParameter>
<CssParameter name="stroke-width">0.1</CssParameter>
</LineSymbolizer>
</Rule>
</Style>
<Layer name="boundaries">
<StyleName>My Style</StyleName>
<Datasource>
<Parameter name="type">shape</Parameter>
<Parameter name="file">../../demo/data/boundaries</Parameter>
</Datasource>
</Layer>
</Map>'''
m = mapnik2.Map(600, 300)
mapnik2.load_map_from_string(m, map_string)
mapnik2.load_map_from_string(m, map_string, False, "")
mapnik2.load_map_from_string(m, map_string, True, "")
raise(Todo("Need to write more map property tests in 'object_test.py'..."))
def test_shieldsymbolizer_init():
s = mapnik.ShieldSymbolizer(
mapnik.Expression('[Field Name]'), 'DejaVu Sans Bold', 6,
mapnik.Color('#000000'),
mapnik.PathExpression('../data/images/dummy.png'))
eq_(s.anchor, (
0.0,
0.5,
))
eq_(s.displacement, (0.0, 0.0))
eq_(s.allow_overlap, False)
eq_(s.avoid_edges, False)
eq_(s.character_spacing, 0)
eq_(str(s.name), str(mapnik.Expression('[Field Name]')))
eq_(s.face_name, 'DejaVu Sans Bold')
eq_(s.allow_overlap, False)
eq_(s.fill, mapnik.Color('#000000'))
eq_(s.force_odd_labels, False)
eq_(s.halo_fill, mapnik.Color('rgb(255,255,255)'))
eq_(s.halo_radius, 0)
eq_(s.label_placement, mapnik.label_placement.POINT_PLACEMENT)
eq_(s.minimum_distance, 0.0)
eq_(s.text_ratio, 0)
eq_(s.text_size, 6)
eq_(s.wrap_width, 0)
eq_(s.vertical_alignment, mapnik.vertical_alignment.MIDDLE)
eq_(s.label_spacing, 0)
eq_(s.label_position_tolerance, 0)
# 22.5 * M_PI/180.0 initialized by default
assert_almost_equal(s.max_char_angle_delta, 0.39269908169872414)
eq_(s.wrap_character, ' ')
eq_(s.text_transform, mapnik.text_transform.NONE)
eq_(s.line_spacing, 0)
eq_(s.character_spacing, 0)
# r1341
eq_(s.wrap_before, False)
eq_(s.horizontal_alignment, mapnik.horizontal_alignment.MIDDLE)
eq_(s.justify_alignment, mapnik.justify_alignment.MIDDLE)
eq_(s.opacity, 1.0)
# r2300
eq_(s.minimum_padding, 0.0)
# was mixed with s.opacity
eq_(s.text_opacity, 1.0)
eq_(s.shield_displacement, (0.0, 0.0))
# TODO - the pattern in bindings seems to be to get/set
# strings for PathExpressions... should we pass objects?
eq_(s.filename, '../data/images/dummy.png')
eq_(s.transform, 'matrix(1, 0, 0, 1, 0, 0)')
raise Todo(
"FontSet pickling support needed: http://trac.mapnik.org/ticket/348")
eq_(s.fontset, '')
def test_pointsymbolizer_pickle():
raise Todo("point_symbolizer pickling currently disabled")
p = mapnik2.PointSymbolizer(mapnik2.PathExpression("../data/images/dummy.png"))
p2 = pickle.loads(pickle.dumps(p,pickle.HIGHEST_PROTOCOL))
# image type, width, and height only used in contructor...
eq_(p.filename, p2.filename)
eq_(p.allow_overlap, p2.allow_overlap)
eq_(p.opacity, p2.opacity)
eq_(p.ignore_placement, p2.ignore_placement)
eq_(p.placement, p2.placement)
def test_map_pickle():
# Fails due to scale() not matching, possibly other things
raise (Todo("Map does not support pickling yet (Tickets #345)."))
m = mapnik.Map(256, 256)
eq_(pickle.loads(pickle.dumps(m)), m)
m = mapnik.Map(256, 256, '+proj=latlong')
eq_(pickle.loads(pickle.dumps(m)), m)
def test_render_points():
# Test for effectivenes of ticket #402 (borderline points get lost on reprojection)
raise Todo("See: http://trac.mapnik2.org/ticket/402")
if not mapnik2.has_pycairo(): return
# create and populate point datasource (WGS84 lat-lon coordinates)
places_ds = mapnik2.PointDatasource()
places_ds.add_point(142.48, -38.38, 'Name',
'Westernmost Point') # westernmost
places_ds.add_point(143.10, -38.60, 'Name',
'Southernmost Point') # southernmost
# create layer/rule/style
s = mapnik2.Style()
r = mapnik2.Rule()
symb = mapnik2.PointSymbolizer()
symb.allow_overlap = True
r.symbols.append(symb)
s.rules.append(r)
lyr = mapnik2.Layer('Places', '+proj=latlon +datum=WGS84')
lyr.datasource = places_ds
lyr.styles.append('places_labels')
# latlon bounding box corners
ul_lonlat = mapnik2.Coord(142.30, -38.20)
lr_lonlat = mapnik2.Coord(143.40, -38.80)
# render for different projections
projs = {
'latlon': '+proj=latlon +datum=WGS84',
'merc': '+proj=merc +datum=WGS84 +k=1.0 +units=m +over +no_defs',
'google': '+proj=merc +ellps=sphere +R=6378137 +a=6378137 +units=m',
'utm': '+proj=utm +zone=54 +datum=WGS84'
}
from cairo import SVGSurface
for projdescr in projs.iterkeys():
m = mapnik2.Map(1000, 500, projs[projdescr])
m.append_style('places_labels', s)
m.layers.append(lyr)
p = mapnik2.Projection(projs[projdescr])
m.zoom_to_box(p.forward(mapnik2.Box2d(ul_lonlat, lr_lonlat)))
# Render to SVG so that it can be checked how many points are there with string comparison
import StringIO
svg_memory_file = StringIO.StringIO()
surface = SVGSurface(svg_memory_file, m.width, m.height)
mapnik2.render(m, surface)
surface.flush()
surface.finish()
svg = svg_memory_file.getvalue()
svg_memory_file.close()
num_points_present = len(places_ds.all_features())
num_points_rendered = svg.count('<image ')
eq_(
num_points_present, num_points_rendered,
"Not all points were rendered (%d instead of %d) at projection %s"
% (num_points_rendered, num_points_present, projdescr))
def test_python_extended_constructor(self):
try:
from shapely.geometry import Point
except ImportError:
raise Todo("Make this test not dependant on shapely")
f = self.makeOne(1, Point(3, 6), foo="bar")
self.failUnlessEqual(f['foo'], 'bar')
env = f.geometry.envelope()
self.failUnlessEqual(env.minx, 3)
self.failUnlessEqual(env.miny, 6)
def test_that_nonexistant_query_field_throws(**kwargs):
raise Todo("fixme")
ds = mapnik.Osm(file='../data/osm/nodes.osm')
# ugh, more odd stuff hardcoded...
eq_(len(ds.fields()), 5)
eq_(ds.fields(), ['bicycle', 'foot', 'horse', 'name', 'width'])
eq_(ds.field_types(), ['str', 'str', 'str', 'str', 'str'])
query = mapnik.Query(ds.envelope())
for fld in ds.fields():
query.add_property_name(fld)
# also add an invalid one, triggering throw
query.add_property_name('bogus')
fs = ds.features(query)
def test_map_init_from_string():
map_string = '''<Map background-color="steelblue" base="./" srs="+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs">
<Style name="My Style">
<Rule>
<PolygonSymbolizer>
<CssParameter name="fill">#f2eff9</CssParameter>
</PolygonSymbolizer>
<LineSymbolizer>
<CssParameter name="stroke">rgb(50%,50%,50%)</CssParameter>
<CssParameter name="stroke-width">0.1</CssParameter>
</LineSymbolizer>
</Rule>
</Style>
<Layer name="boundaries">
<StyleName>My Style</StyleName>
<Datasource>
<Parameter name="type">shape</Parameter>
<Parameter name="file">../../demo/data/boundaries</Parameter>
</Datasource>
</Layer>
</Map>'''
m = mapnik.Map(600, 300)
eq_(m.base, '')
try:
mapnik.load_map_from_string(m, map_string)
eq_(m.base, './')
mapnik.load_map_from_string(m, map_string, False,
"") # this "" will have no effect
eq_(m.base, './')
tmp_dir = tempfile.gettempdir()
try:
mapnik.load_map_from_string(m, map_string, False, tmp_dir)
except RuntimeError:
pass # runtime error expected because shapefile path should be wrong and datasource will throw
eq_(
m.base, tmp_dir
) # tmp_dir will be set despite the exception because load_map mostly worked
m.base = 'foo'
mapnik.load_map_from_string(m, map_string, True, ".")
eq_(m.base, '.')
raise (Todo(
"Need to write more map property tests in 'object_test.py'..."))
except RuntimeError, e:
# only test datasources that we have installed
if not 'Could not create datasource' in str(e):
raise RuntimeError(e)
def test():
# TODO: Write a better test
# 1. Construct map in memory
# 2. Save map as XML
# 3. Load map to a second object
# 4. Compare both map objects
map = mapnik.Map(256, 256)
raise Todo(
"map comparison is currently broken due to lacking relative paths support (#324,#340"
)
def compare_map(in_map):
mapnik.load_map(map, in_map)
(handle, test_map) = tempfile.mkstemp(suffix='.xml',
prefix='mapnik-temp-map1-')
os.close(handle)
(handle, test_map2) = tempfile.mkstemp(suffix='.xml',
prefix='mapnik-temp-map2-')
os.close(handle)
if os.path.exists(test_map):
os.remove(test_map)
mapnik.save_map(map, test_map)
new_map = mapnik.Map(256, 256)
mapnik.load_map(new_map, test_map)
open(test_map2, 'w').write(mapnik.save_map_to_string(new_map))
diff = ' diff %s %s' % (os.path.abspath(test_map),
os.path.abspath(test_map2))
try:
eq_(open(test_map).read(), open(test_map2).read())
except AssertionError, e:
raise AssertionError(
'serialized map "%s" not the same after being reloaded, \ncompare with command:\n\n$%s'
% (in_map, diff))
if os.path.exists(test_map):
os.remove(test_map)
else:
# Fail, the map wasn't written
return False
def test_feature_hit_count():
raise Todo("need to optimize multigeom bbox handling in shapeindex")
# results in different results between shp and ogr!
#bbox = (-14284551.8434, 2074195.1992, -7474929.8687, 8140237.7628)
bbox = (1113194.91, 4512803.085, 2226389.82, 6739192.905)
query = mapnik.Query(mapnik.Box2d(*bbox))
if 'ogr' in mapnik.DatasourceCache.instance().plugin_names():
ds1 = mapnik.Ogr(file='../data/shp/world_merc.shp', layer_by_index=0)
for fld in ds1.fields():
query.add_property_name(fld)
ds2 = mapnik.Shapefile(file='../data/shp/world_merc.shp')
count1 = len(ds1.features(query).features)
count2 = len(ds2.features(query).features)
eq_(
count1, count2,
"Feature count differs between OGR driver (%s features) and Shapefile Driver (%s features) when querying the same bbox"
% (count1, count2))
def test_add_feature(self):
try:
from shapely.geometry import Point
except ImportError:
raise Todo("Make this test not dependant on shapely")
md = self.makeOne()
self.failUnlessEqual(md.num_features(), 0)
md.add_feature(self.makeFeature(Point(2, 3), foo='bar'))
self.failUnlessEqual(md.num_features(), 1)
from mapnik2 import Coord
retrieved = md.features_at_point(Coord(2, 3)).features
self.failUnlessEqual(len(retrieved), 1)
f = retrieved[0]
self.failUnlessEqual(f['foo'], 'bar')
retrieved = md.features_at_point(Coord(20, 30)).features
self.failUnlessEqual(len(retrieved), 0)
def test_add_wkb_geometry(self):
try:
from shapely.geometry import Point
except ImportError:
raise Todo("Make this test not dependant on shapely")
def add_it(geometry):
f = self.makeOne(1)
self.failUnlessEqual(len(f.geometries), 0)
f.add_geometry(geometry)
self.failUnlessEqual(len(f.geometries), 1)
env = f.geometry.envelope()
self.failUnlessEqual(env.minx, 3)
self.failUnlessEqual(env.minx, env.maxx)
self.failUnlessEqual(env.miny, 6)
self.failUnlessEqual(env.miny, env.maxy)
geometries = (Point(3, 6), 'POINT(3 6)', Point(3, 6).wkb)
for geom in geometries:
add_it(geom)
def test_background_image_with_alpha_and_background_color_against_composited_control(
):
m = mapnik.Map(10, 10)
m.background = mapnik.Color('rgba(255,255,255,.5)')
m.background_image = '../data/images/yellow_half_trans.png'
im = mapnik.Image(m.width, m.height)
mapnik.render(m, im)
# create and composite the expected result
im1 = mapnik.Image(10, 10)
im1.background = mapnik.Color('rgba(255,255,255,.5)')
im1.premultiply()
im2 = mapnik.Image(10, 10)
im2.background = mapnik.Color('rgba(255,255,0,.5)')
im2.premultiply()
im1.composite(im2)
im1.demultiply()
# compare image rendered (compositing in `agg_renderer<T>::setup`)
# vs image composited via python bindings
raise Todo("looks like we need to investigate PNG rounding when saving")
eq_(get_unique_colors(im), get_unique_colors(im1))
def test_wkt_collection_flattening():
raise Todo("fixme or remove test")
# currently fails as the MULTIPOLYGON inside will be returned as multiple polygons - not a huge deal - should we worry?
wkt = "GEOMETRYCOLLECTION(POLYGON((1 1,2 1,2 2,1 2,1 1)),MULTIPOLYGON(((40 40,20 45,45 30,40 40)),((20 35,45 20,30 5,10 10,10 30,20 35),(30 20,20 25,20 15,30 20))),LINESTRING(2 3,3 4))"
compare_wkt_from_wkt(wkt, 4)
def test_wkt_rounding():
raise Todo("fixme or remove test")
# currently fails because we use output precision of 6 - should we make configurable? https://github.com/mapnik/mapnik/issues/1009
# if precision is set to 15 still fails due to very subtle rounding issues
wkt = "POLYGON((7.904185417583761 54.180426336712856,7.89918053477129 54.178168035931542,7.897715691021261 54.182318426556606,7.893565300396205 54.183111883587891,7.89039147227129 54.187567449994106,7.885874870708761 54.190680242962827,7.879893425396261 54.193915106244049,7.894541862896233 54.194647528119134,7.900645378521233 54.190680242962827,7.904185417583761 54.180426336712856))"
compare_wkt_from_wkt(wkt, 1)