def create_outputformat(mime_type, options, imagemode, basename, parameters):
""" Returns a ``mapscript.outputFormatObj`` for the given format name and
imagemode.
"""
reg_format = get_format_by_mime(mime_type)
if not reg_format:
raise RenderException(
"Unsupported output format '%s'." % mime_type, "format"
)
outputformat = ms.outputFormatObj(reg_format.driver, "custom")
outputformat.name = reg_format.wcs10name
outputformat.mimetype = reg_format.mimeType
outputformat.extension = reg_format.defaultExt
outputformat.imagemode = imagemode
#for key, value in options:
# outputformat.setOption(str(key), str(value))
if mime_type == "image/tiff":
_apply_gtiff(outputformat, **parameters)
filename = basename + reg_format.defaultExt
outputformat.setOption("FILENAME", str(filename))
return outputformat
def create_outputformat(mime_type, options, imagemode, basename, parameters):
""" Returns a ``mapscript.outputFormatObj`` for the given format name and
imagemode.
"""
reg_format = get_format_by_mime(mime_type)
if not reg_format:
raise RenderException("Unsupported output format '%s'." % mime_type,
"format")
outputformat = ms.outputFormatObj(reg_format.driver, "custom")
outputformat.name = reg_format.wcs10name
outputformat.mimetype = reg_format.mimeType
outputformat.extension = reg_format.defaultExt
outputformat.imagemode = imagemode
#for key, value in options:
# outputformat.setOption(str(key), str(value))
if mime_type == "image/tiff":
_apply_gtiff(outputformat, **parameters)
filename = basename + reg_format.defaultExt
outputformat.setOption("FILENAME", str(filename))
return outputformat
def get_all_outputformats(self, use_mime=True):
outputformats = []
for frmt in self.get_wcs_formats():
of = ms.outputFormatObj(frmt.driver, "custom")
of.name = frmt.mimeType if use_mime else frmt.wcs10name
of.mimetype = frmt.mimeType
of.extension = frmt.defaultExt
outputformats.append(of)
return outputformats
def get_all_outputformats(self, use_mime=True):
outputformats = []
for frmt in self.get_wcs_formats():
of = ms.outputFormatObj(frmt.driver, "custom")
of.name = frmt.mimeType if use_mime else frmt.wcs10name
of.mimetype = frmt.mimeType
of.extension = frmt.defaultExt
outputformats.append(of)
return outputformats
def create_outputformat(mime_type, options, imagemode, basename):
""" Returns a ``mapscript.outputFormatObj`` for the given format name and
imagemode.
"""
reg_format = get_format_by_mime(mime_type)
if not reg_format:
raise Exception("Unsupported output format '%s'." % frmt)
outputformat = ms.outputFormatObj(reg_format.driver, "custom")
outputformat.name = reg_format.wcs10name
outputformat.mimetype = reg_format.mimeType
outputformat.extension = reg_format.defaultExt
outputformat.imagemode = imagemode
for key, value in options:
outputformat.setOption(str(key), str(value))
filename = basename + reg_format.defaultExt
outputformat.setOption("FILENAME", str(filename))
return outputformat
def render_map(self, render_map):
# TODO: get layer creators for each layer type in the map
map_obj = ms.mapObj()
if render_map.bgcolor:
map_obj.imagecolor.setHex("#" + render_map.bgcolor.lower())
else:
map_obj.imagecolor.setRGB(0, 0, 0)
frmt = getFormatRegistry().getFormatByMIME(render_map.format)
if not frmt:
raise MapRenderError('No such format %r' % render_map.format,
code='InvalidFormat',
locator='format')
outputformat_obj = ms.outputFormatObj(frmt.driver)
outputformat_obj.transparent = (ms.MS_ON if render_map.transparent else
ms.MS_OFF)
outputformat_obj.mimetype = frmt.mimeType
if frmt.defaultExt:
if frmt.defaultExt.startswith('.'):
extension = frmt.defaultExt[1:]
else:
extension = frmt.defaultExt
outputformat_obj.extension = extension
map_obj.setOutputFormat(outputformat_obj)
#
map_obj.setExtent(*render_map.bbox)
map_obj.setSize(render_map.width, render_map.height)
map_obj.setProjection(render_map.crs)
map_obj.setConfigOption('MS_NONSQUARE', 'yes')
layers_plus_factories = self._get_layers_plus_factories(render_map)
layers_plus_factories_plus_data = [
(layer, factory, factory.create(map_obj, layer))
for layer, factory in layers_plus_factories
]
# log the resulting map
if logger.isEnabledFor(logging.DEBUG):
with tempfile.NamedTemporaryFile() as f:
map_obj.save(f.name)
f.seek(0)
logger.debug(f.read().decode('ascii'))
try:
# actually render the map
image_obj = map_obj.draw()
try:
image_bytes = image_obj.getBytes()
except Exception:
tmp_name = '/vsimem/%s' % uuid4().hex
image_obj.save(tmp_name, map_obj)
with vsi.open(tmp_name) as f:
image_bytes = f.read()
vsi.unlink(tmp_name)
extension = outputformat_obj.extension
if extension:
if len(render_map.layers) == 1:
filename = '%s.%s' % (render_map.layers[0].name, extension)
else:
filename = 'map.%s' % extension
else:
filename = None
return image_bytes, outputformat_obj.mimetype, filename
finally:
# disconnect
for layer, factory, data in layers_plus_factories_plus_data:
factory.destroy(map_obj, layer, data)