def test_mask_partial_image_transparent(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(transparent=True))
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage([5, 5, 30, 30]))
assert_img_colors_eq(result.as_image().getcolors(),
[(7500, (255, 255, 255, 0)), (2500, (100, 0, 200, 255))])
def test_mask_outside_of_image_bgcolor(self):
img = ImageSource(
Image.new("RGB", (100, 100), color=(100, 0, 200)), image_opts=ImageOptions(bgcolor=(200, 30, 120))
)
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage([20, 20, 30, 30]))
eq_(result.as_image().getcolors(), [((100 * 100), (200, 30, 120))])
def test_mask_partial_image_bgcolor(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(bgcolor=(200, 30, 120)))
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage([5, 5, 30, 30]))
eq_(result.as_image().getcolors(),
[(7500, (200, 30, 120)), (2500, (100, 0, 200))])
def render(self,
tile_request,
use_profiles=False,
coverage=None,
decorate_img=None):
if tile_request.format != self.format:
raise RequestError(
'invalid format (%s). this tile set only supports (%s)' %
(tile_request.format, self.format),
request=tile_request,
code='InvalidParameterValue')
tile_coord = self._internal_tile_coord(tile_request,
use_profiles=use_profiles)
coverage_intersects = False
if coverage:
tile_bbox = self.grid.tile_bbox(tile_coord)
if coverage.contains(tile_bbox, self.grid.srs):
pass
elif coverage.intersects(tile_bbox, self.grid.srs):
coverage_intersects = True
else:
return self.empty_response()
dimensions = self.checked_dimensions(tile_request)
try:
with self.tile_manager.session():
tile = self.tile_manager.load_tile_coord(tile_coord,
dimensions=dimensions,
with_metadata=True)
if tile.source is None:
return self.empty_response()
# Provide the wrapping WSGI app or filter the opportunity to process the
# image before it's wrapped up in a response
if decorate_img:
tile.source = decorate_img(tile.source)
if coverage_intersects:
if self.empty_response_as_png:
format = 'png'
image_opts = ImageOptions(transparent=True, format='png')
else:
format = self.format
image_opts = tile.source.image_opts
tile.source = mask_image_source_from_coverage(
tile.source, tile_bbox, self.grid.srs, coverage,
image_opts)
return TileResponse(tile, format=format, image_opts=image_opts)
format = None if self._mixed_format else tile_request.format
return TileResponse(tile,
format=format,
image_opts=self.tile_manager.image_opts)
except SourceError as e:
raise RequestError(e.args[0], request=tile_request, internal=True)
def test_mask_outside_of_image_transparent(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(transparent=True))
result = mask_image_source_from_coverage(img, [0, 0, 10, 10],
SRS(4326),
coverage([20, 20, 30, 30]))
eq_(result.as_image().getcolors(), [((100 * 100), (255, 255, 255, 0))])
def test_mask_partial_image_transparent(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(transparent=True))
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage([5, 5, 30, 30]))
assert_img_colors_eq(result.as_image().getcolors(),
[(7500, (255, 255, 255, 0)), (2500, (100, 0, 200, 255))])
def test_shapely_mask_with_transform_partial_image_transparent(self):
img = ImageSource(Image.new("RGB", (100, 100), color=(100, 0, 200)), image_opts=ImageOptions(transparent=True))
p = Polygon([(0, 0), (222000, 0), (222000, 222000), (0, 222000)]) # ~ 2x2 degres
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage(p, "EPSG:3857"))
# 20*20 = 400
eq_(result.as_image().getcolors(), [(10000 - 400, (255, 255, 255, 0)), (400, (100, 0, 200, 255))])
def test_mask_outside_of_image_bgcolor(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(bgcolor=(200, 30, 120)))
result = mask_image_source_from_coverage(img, [0, 0, 10, 10],
SRS(4326),
coverage([20, 20, 30, 30]))
assert_img_colors_eq(result.as_image().getcolors(),
[((100 * 100), (200, 30, 120))])
def test_mask_partial_image_bgcolor(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(bgcolor=(200, 30, 120)))
result = mask_image_source_from_coverage(img, [0, 0, 10, 10],
SRS(4326),
coverage([5, 5, 30, 30]))
eq_(result.as_image().getcolors(), [(7500, (200, 30, 120)),
(2500, (100, 0, 200))])
def test_wkt_mask_partial_image_transparent(self):
img = ImageSource(Image.new("RGB", (100, 100), color=(100, 0, 200)), image_opts=ImageOptions(transparent=True))
# polygon with hole
geom = "POLYGON((2 2, 2 8, 8 8, 8 2, 2 2), (4 4, 4 6, 6 6, 6 4, 4 4))"
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage(geom))
# 60*61 - 20*21 = 3240
eq_(result.as_image().getcolors(), [(10000 - 3240, (255, 255, 255, 0)), (3240, (100, 0, 200, 255))])
def test_shapely_mask_with_transform_partial_image_transparent(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(transparent=True))
p = Polygon([(0, 0), (222000, 0), (222000, 222000), (0, 222000)]) # ~ 2x2 degres
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage(p, 'EPSG:3857'))
# 20*20 = 400
assert_img_colors_eq(result.as_image().getcolors(),
[(10000-400, (255, 255, 255, 0)), (400, (100, 0, 200, 255))])
def test_wkt_mask_partial_image_transparent(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(transparent=True))
# polygon with hole
geom = 'POLYGON((2 2, 2 8, 8 8, 8 2, 2 2), (4 4, 4 6, 6 6, 6 4, 4 4))'
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage(geom))
# 60*60 - 20*20 = 3200
assert_img_colors_eq(result.as_image().getcolors(),
[(10000-3200, (255, 255, 255, 0)), (3200, (100, 0, 200, 255))])
def render(self, tile_request, use_profiles=False, coverage=None, decorate_img=None):
if tile_request.format != self.format:
raise RequestError('invalid format (%s). this tile set only supports (%s)'
% (tile_request.format, self.format), request=tile_request,
code='InvalidParameterValue')
tile_coord = self._internal_tile_coord(tile_request, use_profiles=use_profiles)
coverage_intersects = False
if coverage:
tile_bbox = self.grid.tile_bbox(tile_coord)
if coverage.contains(tile_bbox, self.grid.srs):
pass
elif coverage.intersects(tile_bbox, self.grid.srs):
coverage_intersects = True
else:
return self.empty_response()
dimensions = self.checked_dimensions(tile_request)
try:
with self.tile_manager.session():
tile = self.tile_manager.load_tile_coord(tile_coord,
dimensions=dimensions, with_metadata=True)
if tile.source is None:
return self.empty_response()
# Provide the wrapping WSGI app or filter the opportunity to process the
# image before it's wrapped up in a response
if decorate_img:
tile.source = decorate_img(tile.source)
if coverage_intersects:
if self.empty_response_as_png:
format = 'png'
image_opts = ImageOptions(transparent=True, format='png')
else:
format = self.format
image_opts = tile.source.image_opts
tile.source = mask_image_source_from_coverage(
tile.source, tile_bbox, self.grid.srs, coverage, image_opts)
return TileResponse(tile, format=format, image_opts=image_opts)
format = None if self._mixed_format else tile_request.format
return TileResponse(tile, format=format, image_opts=self.tile_manager.image_opts)
except SourceError as e:
raise RequestError(e.args[0], request=tile_request, internal=True)
def render(self, tile_request, use_profiles=False, coverage=None):
if tile_request.format != self.format:
raise RequestError('invalid format (%s). this tile set only supports (%s)'
% (tile_request.format, self.format), request=tile_request,
code='InvalidParameterValue')
tile_coord = self._internal_tile_coord(tile_request, use_profiles=use_profiles)
coverage_intersects = False
if coverage:
tile_bbox = self.grid.tile_bbox(tile_coord)
if coverage.contains(tile_bbox, self.grid.srs):
pass
elif coverage.intersects(tile_bbox, self.grid.srs):
coverage_intersects = True
else:
return self.empty_response()
try:
with self.tile_manager.session():
tile = self.tile_manager.load_tile_coord(tile_coord, with_metadata=True)
if tile.source is None:
return self.empty_response()
if coverage_intersects:
if self.empty_response_as_png:
format = 'png'
image_opts = ImageOptions(transparent=True, format='png')
else:
format = self.format
image_opts = tile.source.image_opts
tile.source = mask_image_source_from_coverage(
tile.source, tile_bbox, self.grid.srs, coverage, image_opts)
return TileResponse(tile, format=format, image_opts=image_opts)
format = None if self._mixed_format else tile_request.format
return TileResponse(tile, format=format, image_opts=self.tile_manager.image_opts)
except SourceError, e:
raise RequestError(e.args[0], request=tile_request, internal=True)
def test_mask_outside_of_image_transparent(self):
img = ImageSource(Image.new('RGB', (100, 100), color=(100, 0, 200)),
image_opts=ImageOptions(transparent=True))
result = mask_image_source_from_coverage(img, [0, 0, 10, 10], SRS(4326), coverage([20, 20, 30, 30]))
eq_(result.as_image().getcolors(), [((100*100), (255, 255, 255, 0))])
