def _render_capture_source_errors(self, async_pool, render_layers, layer_merger):
# call _render_layer, capture SourceError exceptions
errors = []
rendered = 0
for layer_task in async_pool.imap(self._render_layer, render_layers, use_result_objects=True):
if layer_task.exception is None:
layer, layer_img = layer_task.result
if layer_img is not None:
layer_merger.add(layer_img, layer=layer)
rendered += 1
else:
layer_merger.cacheable = False
ex = layer_task.exception
if isinstance(ex[1], SourceError):
errors.append(ex[1].args[0])
else:
async_pool.shutdown(True)
raise ex[0], ex[1], ex[2]
if render_layers and not rendered:
errors = "\n".join(errors)
raise RequestError("Could not get any sources:\n" + errors, request=self.request)
if errors:
layer_merger.add(
message_image("\n".join(errors), self.query.size, image_opts=ImageOptions(transparent=True))
)
def _render_capture_source_errors(self, async_pool, render_layers,
layer_merger):
# call _render_layer, capture SourceError exceptions
errors = []
rendered = 0
for layer_task in async_pool.imap(self._render_layer,
render_layers,
use_result_objects=True):
if layer_task.exception is None:
layer, layer_img = layer_task.result
if layer_img is not None:
layer_merger.add(layer_img, layer.coverage)
rendered += 1
else:
layer_merger.cacheable = False
ex = layer_task.exception
if isinstance(ex[1], SourceError):
errors.append(ex[1].args[0])
else:
async_pool.shutdown(True)
reraise(ex)
if render_layers and not rendered:
errors = '\n'.join(errors)
raise RequestError('Could not get any sources:\n' + errors,
request=self.request)
if errors:
layer_merger.add(
message_image('\n'.join(errors),
self.query.size,
image_opts=ImageOptions(transparent=True)))
def get_map(self, query):
bbox = query.bbox
w = bbox[2] - bbox[0]
h = bbox[3] - bbox[1]
res_x = w/query.size[0]
res_y = h/query.size[1]
debug_info = "bbox: %r\nres: %.8f(%.8f)" % (bbox, res_x, res_y)
return message_image(debug_info, size=query.size,
image_opts=ImageOptions(transparent=True))
def test_message(self):
image_opts = PNG_FORMAT.copy()
image_opts.bgcolor = '#113399'
img = message_image('test', size=(100, 150), image_opts=image_opts)
assert isinstance(img, ImageSource)
assert img.size == (100, 150)
# 6 values in histogram (3xRGB for background, 3xRGB for text message)
eq_([x for x in img.as_image().histogram() if x > 10],
[14923, 77, 14923, 77, 14923, 77])
def test_message(self):
image_opts = PNG_FORMAT.copy()
image_opts.bgcolor = '#113399'
img = message_image('test', size=(100, 150), image_opts=image_opts)
assert isinstance(img, ImageSource)
assert img.size == (100, 150)
# 6 values in histogram (3xRGB for background, 3xRGB for text message)
eq_([x for x in img.as_image().histogram() if x > 10],
[14923, 77, 14923, 77, 14923, 77])
def test_blank(self):
image_opts = PNG_FORMAT.copy()
image_opts.bgcolor = '#113399'
img = message_image('', size=(100, 150), image_opts=image_opts)
assert isinstance(img, ImageSource)
eq_(img.size, (100, 150))
pil_img = img.as_image()
eq_(pil_img.getpixel((0, 0)), ImageColor.getrgb('#113399'))
# 3 values in histogram (RGB)
assert [x for x in pil_img.histogram() if x > 0] == [15000, 15000, 15000]
def test_transparent(self):
image_opts = ImageOptions(transparent=True)
print(image_opts)
img = message_image('', size=(100, 150), image_opts=image_opts)
assert isinstance(img, ImageSource)
assert img.size == (100, 150)
pil_img = img.as_image()
eq_(pil_img.getpixel((0, 0)), (255, 255, 255, 0))
# 6 values in histogram (3xRGB for background, 3xRGB for text message)
assert [x for x in pil_img.histogram() if x > 0] == \
[15000, 15000, 15000, 15000]
def test_transparent(self):
image_opts = ImageOptions(transparent=True)
print(image_opts)
img = message_image('', size=(100, 150), image_opts=image_opts)
assert isinstance(img, ImageSource)
assert img.size == (100, 150)
pil_img = img.as_image()
eq_(pil_img.getpixel((0, 0)), (255, 255, 255, 0))
# 6 values in histogram (3xRGB for background, 3xRGB for text message)
assert [x for x in pil_img.histogram() if x > 0] == \
[15000, 15000, 15000, 15000]
def test_blank(self):
image_opts = PNG_FORMAT.copy()
image_opts.bgcolor = '#113399'
img = message_image('', size=(100, 150), image_opts=image_opts)
assert isinstance(img, ImageSource)
eq_(img.size, (100, 150))
pil_img = img.as_image()
eq_(pil_img.getpixel((0, 0)), ImageColor.getrgb('#113399'))
# 3 values in histogram (RGB)
assert [x for x in pil_img.histogram()
if x > 0] == [15000, 15000, 15000]
def render(self, request_error):
request = request_error.request
params = request.params
format = params.format
size = params.size
if size is None:
size = (256, 256)
transparent = "transparent" in params and params["transparent"].lower() == "true"
bgcolor = WMSImageExceptionHandler._bgcolor(request.params)
image_opts = ImageOptions(format=format, bgcolor=bgcolor, transparent=transparent)
result = message_image(request_error.msg, size=size, image_opts=image_opts)
return Response(result.as_buffer(), content_type=params.format_mime_type)
def render(self, request_error):
request = request_error.request
params = request.params
format = params.format
size = params.size
if size is None:
size = (256, 256)
transparent = ('transparent' in params
and params['transparent'].lower() == 'true')
bgcolor = WMSImageExceptionHandler._bgcolor(request.params)
image_opts = ImageOptions(format=format,
bgcolor=bgcolor,
transparent=transparent)
result = message_image(request_error.msg,
size=size,
image_opts=image_opts)
return Response(result.as_buffer(),
content_type=params.format_mime_type)
