def register_fonts(self):
self.msg('Registering fonts...')
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
def register_fonts(self):
self.msg('Registering fonts...')
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
class Compose(object):
"""
"""
def __init__(self, mapfile, **kwargs):
"""
"""
self.mapfile = mapfile
self.image = None
self.format = 'png'
self.width = 600
self.height = 400
self.bbox = None
self.zoom = None
self.center = None
self.radius = None
self.zoom_to_layers = None
self.extent = None
self.max_extent = None
self.srs = None
self.layers = None
self.re_render_times = None
self.post_step_pause = None
self.max_resolution = None
self.find_and_replace = None
self.world_file = None
self.fonts = []
self.save_xml = None
self.app = None
self.dry_run = False
self.from_string = False
self.changed = []
self.font_handler = None
self.map = None
self.rendered = False
self.verbose = False
if self.verbose:
self.msg = self.verbose_msg
else:
self.msg = self.quiet
if kwargs:
self.handle_options(kwargs)
self.prepare()
self.setup()
self.build()
def handle_options(self, options):
for opt in options.items():
if opt[1] is not None and hasattr(self, opt[0]):
setattr(self, opt[0], opt[1])
self.changed.append(opt[0])
def prepare(self):
self.format = self.format.lower().replace('image/', '')
self.mime = 'image/%s' % self.format.replace('256', '')
if self.fonts:
self.register_fonts()
def setup(self):
pass
def output_error(self, msg, E=None):
if E:
msg += E
raise sys.exit(msg)
def verbose_msg(self, msg):
sys.stderr.write('%s\n' % msg)
def quiet(self, msg):
pass
def register_fonts(self):
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
def build(self):
self.msg('Loading mapfile...')
loader = Load(self.mapfile, variables={}, from_string=self.from_string)
if not self.from_string:
self.msg('Loaded %s...' % self.mapfile)
else:
self.msg('Loaded XML from string')
self.map = loader.build_map(self.width, self.height)
if self.srs:
self.msg('Setting srs to: %s' % self.srs)
self.map.set_easy_srs(self.srs)
if self.layers:
selected, disactivated = self.map.select_layers(self.layers)
self.msg('Selected layers: %s' % selected)
if not selected:
self.output_error(
'Layer not found: available layers are: "%s"' %
', '.join(disactivated))
# handle shifts in pixel dimensions or bbox ratio
# need to make as an option
#try:
# self.map.aspect_fix_mode = mapnik.aspect_fix_mode.ADJUST_CANVAS_HEIGHT
#except:
# self.msg('aspect_fix_mode not available!')
# zoom to max extent at beginning if we later need to
# zoom to a center point
# or need to zoom to a zoom-level
if self.center or not self.zoom is None:
if self.max_extent:
self.msg('Zooming to max extent: %s' % self.max_extent)
self.map.zoom_to_box(mapnik.Envelope(*self.max_extent))
else:
self.map.zoom_max()
self.msg('Zoomed to *estimated* max extent: %s' %
self.map.envelope())
if self.center and not self.zoom is None:
self.msg('Zooming to Center (%s) and Zoom Level "%s"' %
(self.center, self.zoom))
self.map.set_center_and_zoom(self.center[0], self.center[1],
self.zoom)
elif self.center and self.radius:
self.msg('Zooming to Center (%s) and Radius "%s"' %
(self.center, self.radius))
self.map.set_center_and_radius(self.center[0], self.center[1],
self.radius)
elif not self.zoom is None:
self.msg('Zooming to Zoom Level "%s"' % (self.zoom))
self.map.zoom_to_level(self.zoom)
elif self.zoom_to_layers:
self.msg('Zooming to Layers: "%s"' % (self.zoom_to_layers))
self.map.activate_layers(self.zoom_to_layers)
if len(self.zoom_to_layers) > 1:
self.map.zoom_to_layers(self.zoom_to_layers)
else:
self.map.zoom_to_layer(self.zoom_to_layers[0])
else:
if self.extent:
env = mapnik.Envelope(*self.extent)
self.msg('Zooming to custom projected extent: "%s"' % env)
self.map.zoom_to_box(env)
from_prj = mapnik.Projection(self.map.srs)
to_prj = mapnik.Projection('+init=epsg:4326')
bbox = env.transform(from_prj, to_prj)
self.msg('Custom extent in geographic coordinates: "%s"' %
bbox)
elif self.bbox:
env = mapnik.Envelope(*self.bbox)
self.msg('Zooming to custom geographic extent: "%s"' % env)
from_prj = mapnik.Projection('+init=epsg:4326')
to_prj = mapnik.Projection(self.map.srs)
self.map.zoom_to_box(env.transform(from_prj, to_prj))
else:
self.map.zoom_all()
self.msg('Zoom to extent of all layers: "%s"' %
self.map.envelope())
if self.save_xml:
mapnik.save_map(self.map, self.save_xml)
def render(self):
if not self.map:
self.build()
if self.dry_run:
self.output_error("Dry run completed successfully...")
renderer = Render(self.map, self.image, self.format, self.world_file)
if self.image:
renderer.render_file()
else:
renderer.print_stream()
self.rendered = True
def open(self, app=None):
"""
Routine to open the rendered image or folder of images from the filesystem.
"""
self.render()
if not app and self.app:
app = self.app
try:
if os.name == 'nt':
if app:
self.msg(
'Overriding default image viewer not yet supported on Win32'
)
os.system('start %s' % self.image.replace('/', '\\'))
elif platform.uname()[0] == 'Linux':
if app:
os.system('%s %s' % (app, self.image))
elif platform.uname()[0] == 'Darwin':
if app:
os.system('open %s -a %s' % (self.image, app))
else:
os.system('open %s' % self.image)
except Exception:
pass # this is fluf, so fail quietly if there is a problem
class Compose(object):
"""
"""
def __init__(self,mapfile,**kwargs):
"""
"""
self.mapfile = mapfile
self.image = None
self.format = 'png'
self.width = 600
self.height = 400
self.bbox = None
self.zoom = None
self.center = None
self.radius = None
self.zoom_to_layers = None
self.extent = None
self.max_extent = None
self.bbox_factor = None
self.srs = None
self.layers = None
self.re_render_times = None
self.post_step_pause = None
self.max_resolution = None
self.find_and_replace = None
self.world_file = None
self.fonts = []
self.save_xml = None
self.app = None
self.dry_run = False
self.from_string = False
self.zip_compress = False
self.changed = []
self.font_handler = None
self.map = None
self.rendered = False
self.verbose = False
self.scale_factor = None
self.aspect_fix_mode = None
self.start_time = 0
self.load_map_time = 0
if kwargs:
self.handle_options(kwargs)
if not self.verbose:
self.msg = self.quiet
self.prepare()
self.setup()
self.build()
def handle_options(self,options):
for opt in options.items():
if opt[1] is not None and hasattr(self,opt[0]):
setattr(self,opt[0],opt[1])
self.changed.append(opt[0])
def prepare(self):
self.format = self.format.replace('image/','')
self.mime = 'image/%s' % self.format.replace('256','')
if self.fonts:
self.register_fonts()
def setup(self):
pass
def output_error(self, msg, E=None):
if E:
msg += E
raise sys.exit(msg)
def msg(self, msg, warn=False):
sys.stderr.write('%s\n' % msg)
def quiet(self, msg):
pass
def register_fonts(self):
self.msg('Registering fonts...')
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
def build(self):
self.msg('Loading mapfile...')
builder = Load(self.mapfile,variables={},from_string=self.from_string,verbose=self.verbose)
if not self.from_string:
self.msg('Loaded %s...' % self.mapfile)
else:
self.msg('Loaded XML from string')
self.map = builder.build_map(self.width,self.height)
if self.srs:
self.msg('Setting srs to: %s' % self.srs)
self.map.set_easy_srs(self.srs)
if self.layers:
selected, disactivated = self.map.select_layers(self.layers)
self.msg('Selected layers: %s' % selected)
if not selected:
self.output_error('Layer not found: available layers are: "%s"' % ', '.join(disactivated))
# set up behavior for fixing relationship between map aspect and bbox aspect
if self.aspect_fix_mode:
if not hasattr(self.map, 'aspect_fix_mode'):
self.output_error('Your version of Mapnik does not support setting the aspect_fix_mode (only available in >= Mapnik 0.6.0')
try:
mode = getattr(mapnik.aspect_fix_mode,self.aspect_fix_mode.upper())
except AttributeError:
self.output_error('Error setting aspect_fix_mode, accepted values are: %s' % ', '.join(mapnik.aspect_fix_mode.names.keys()))
self.map.aspect_fix_mode = mode
# zoom to max extent at beginning if we later need to
# zoom to a center point
# or need to zoom to a zoom-level
self.msg('Setting Map view...')
if self.center or not self.zoom is None:
if self.max_extent:
self.msg('Zooming to max extent: %s' % self.max_extent)
self.map.zoom_to_box(mapnik.Box2d(*self.max_extent))
else:
self.map.zoom_max()
self.msg('Zoomed to *estimated* max extent: %s' % self.map.envelope())
if self.center and not self.zoom is None:
self.msg('Zooming to Center (%s) and Zoom Level "%s"' % (self.center,self.zoom))
self.map.set_center_and_zoom(self.center[0],self.center[1],self.zoom)
elif self.center and self.radius:
self.msg('Zooming to Center (%s) and Radius "%s"' % (self.center,self.radius))
self.map.set_center_and_radius(self.center[0],self.center[1],self.radius)
elif not self.zoom is None:
self.msg('Zooming to Zoom Level "%s"' % (self.zoom))
self.map.zoom_to_level(self.zoom)
elif self.zoom_to_layers:
self.msg('Zooming to Layers: "%s"' % (self.zoom_to_layers))
self.map.activate_layers(self.zoom_to_layers)
if len(self.zoom_to_layers) > 1:
self.map.zoom_to_layers(self.zoom_to_layers)
else:
self.map.zoom_to_layer(self.zoom_to_layers[0])
else:
if self.extent:
env = mapnik.Box2d(*self.extent)
self.msg('Zooming to custom projected extent: "%s"' % env)
self.map.zoom_to_box(env)
from_prj = mapnik.Projection(self.map.srs)
to_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
bbox = env.forward(from_prj,to_prj)
self.msg('Custom extent in geographic coordinates: "%s"' % bbox)
elif self.bbox:
env = mapnik.Box2d(*self.bbox)
self.msg('Zooming to custom geographic extent: "%s"' % env)
from_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
to_prj = mapnik.Projection(self.map.srs)
self.map.zoom_to_box(env.forward(from_prj,to_prj))
else:
self.map.zoom_all()
self.msg('Zoom to extent of all layers: "%s"' % self.map.envelope())
if self.bbox_factor:
if self.bbox_factor > 0:
bbox = self.map.envelope() * self.bbox_factor
else:
bbox = self.map.envelope() / self.bbox_factor
self.map.zoom_to_box(bbox)
self.msg('Adjusting final extent by factor of %s: "%s"' % (self.bbox_factor,self.map.envelope()))
self.msg('Finished setting extents...')
if self.save_xml:
mapnik.save_map(self.map,self.save_xml)
return builder
def render(self):
if not self.map:
self.build()
if self.dry_run:
self.output_error("Dry run completed successfully...")
renderer = Render(self.map,self.image,self.format,self.world_file,self.zip_compress,self.scale_factor)
if self.image == '-':
renderer.print_stream()
else:
renderer.render_file()
self.rendered = True
return renderer
def open(self, app=None):
"""
Routine to open the rendered image or folder of images from the filesystem.
"""
self.render()
if not app and self.app:
app = self.app
if os.name == 'nt':
if app:
self.msg('Overriding default image viewer not supported on Win32')
call('start %s' % self.image.replace('/','\\'))
elif platform.uname()[0] == 'Linux':
if app:
call('%s %s' % (app,self.image))
else:
# make blind and dumb attempt to open images, but don't block while open
try:
cmd = 'xdg-open %s' % self.image
Popen(cmd.split(' '))
except OSError:
try:
cmd = 'gthumb %s' % self.image
Popen(cmd.split(' '))
except OSError:
try:
cmd = 'display %s' % self.image
Popen(cmd.split(' '))
except OSError:
pass
elif platform.uname()[0] == 'Darwin':
if app:
call('open %s -a %s' % (self.image, app))
else:
call('open %s' % self.image)
class Compose(object):
"""
"""
def __init__(self, mapfile, **kwargs):
"""
"""
self.mapfile = mapfile
self.image = None
self.format = 'png'
self.width = 600
self.height = 400
self.bbox = None
self.zoom = None
self.center = None
self.radius = None
self.zoom_to_layers = None
self.extent = None
self.max_extent = None
self.bbox_factor = None
self.srs = None
self.layers = None
self.re_render_times = None
self.post_step_pause = None
self.max_resolution = None
self.find_and_replace = None
self.world_file = None
self.fonts = []
self.save_xml = None
self.app = None
self.dry_run = False
self.from_string = False
self.changed = []
self.font_handler = None
self.map = None
self.rendered = False
self.verbose = False
self.start_time = 0
self.load_map_time = 0
if kwargs:
self.handle_options(kwargs)
if not self.verbose:
self.msg = self.quiet
self.prepare()
self.setup()
self.build()
def handle_options(self, options):
for opt in options.items():
if opt[1] is not None and hasattr(self, opt[0]):
setattr(self, opt[0], opt[1])
self.changed.append(opt[0])
def prepare(self):
self.format = self.format.replace('image/', '')
self.mime = 'image/%s' % self.format.replace('256', '')
if self.fonts:
self.register_fonts()
def setup(self):
pass
def output_error(self, msg, E=None):
if E:
msg += E
raise sys.exit(msg)
def msg(self, msg, warn=False):
sys.stderr.write('%s\n' % msg)
def quiet(self, msg):
pass
def register_fonts(self):
self.msg('Registering fonts...')
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
def build(self):
self.msg('Loading mapfile...')
builder = Load(self.mapfile,
variables={},
from_string=self.from_string)
if not self.from_string:
self.msg('Loaded %s...' % self.mapfile)
else:
self.msg('Loaded XML from string')
self.map = builder.build_map(self.width, self.height)
if self.srs:
self.msg('Setting srs to: %s' % self.srs)
self.map.set_easy_srs(self.srs)
if self.layers:
selected, disactivated = self.map.select_layers(self.layers)
self.msg('Selected layers: %s' % selected)
if not selected:
self.output_error(
'Layer not found: available layers are: "%s"' %
', '.join(disactivated))
# handle shifts in pixel dimensions or bbox ratio
# need to make as an option
#try:
# self.map.aspect_fix_mode = mapnik.aspect_fix_mode.ADJUST_CANVAS_HEIGHT
#except:
# self.msg('aspect_fix_mode not available!')
# zoom to max extent at beginning if we later need to
# zoom to a center point
# or need to zoom to a zoom-level
self.msg('Setting Map view...')
if self.center or not self.zoom is None:
if self.max_extent:
self.msg('Zooming to max extent: %s' % self.max_extent)
self.map.zoom_to_box(mapnik.Envelope(*self.max_extent))
else:
self.map.zoom_max()
self.msg('Zoomed to *estimated* max extent: %s' %
self.map.envelope())
if self.center and not self.zoom is None:
self.msg('Zooming to Center (%s) and Zoom Level "%s"' %
(self.center, self.zoom))
self.map.set_center_and_zoom(self.center[0], self.center[1],
self.zoom)
elif self.center and self.radius:
self.msg('Zooming to Center (%s) and Radius "%s"' %
(self.center, self.radius))
self.map.set_center_and_radius(self.center[0], self.center[1],
self.radius)
elif not self.zoom is None:
self.msg('Zooming to Zoom Level "%s"' % (self.zoom))
self.map.zoom_to_level(self.zoom)
elif self.zoom_to_layers:
self.msg('Zooming to Layers: "%s"' % (self.zoom_to_layers))
self.map.activate_layers(self.zoom_to_layers)
if len(self.zoom_to_layers) > 1:
self.map.zoom_to_layers(self.zoom_to_layers)
else:
self.map.zoom_to_layer(self.zoom_to_layers[0])
else:
if self.extent:
env = mapnik.Envelope(*self.extent)
self.msg('Zooming to custom projected extent: "%s"' % env)
self.map.zoom_to_box(env)
from_prj = mapnik.Projection(self.map.srs)
to_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
bbox = env.transform(from_prj, to_prj)
self.msg('Custom extent in geographic coordinates: "%s"' %
bbox)
elif self.bbox:
env = mapnik.Envelope(*self.bbox)
self.msg('Zooming to custom geographic extent: "%s"' % env)
from_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
to_prj = mapnik.Projection(self.map.srs)
self.map.zoom_to_box(env.transform(from_prj, to_prj))
else:
self.map.zoom_all()
self.msg('Zoom to extent of all layers: "%s"' %
self.map.envelope())
if self.bbox_factor:
if self.bbox_factor > 0:
bbox = self.map.envelope() * self.bbox_factor
else:
bbox = self.map.envelope() / self.bbox_factor
self.map.zoom_to_box(bbox)
self.msg('Adjusting final extent by factor of %s: "%s"' %
(self.bbox_factor, self.map.envelope()))
self.msg('Finished setting extents...')
if self.save_xml:
mapnik.save_map(self.map, self.save_xml)
return builder
def render(self):
if not self.map:
self.build()
if self.dry_run:
self.output_error("Dry run completed successfully...")
renderer = Render(self.map, self.image, self.format, self.world_file)
if self.image:
renderer.render_file()
else:
renderer.print_stream()
self.rendered = True
return renderer
def call(self, cmd, fail=False):
try:
response = Popen(cmd.split(' '),
stdin=PIPE,
stdout=PIPE,
stderr=PIPE)
cm = response.communicate()
return cm[0]
except Exception, e:
if fail:
raise SystemExit(e)
else:
return None
class Compose(object):
"""
"""
def __init__(self,mapfile,**kwargs):
"""
"""
self.mapfile = mapfile
self.image = None
self.format = 'png'
self.width = 600
self.height = 400
self.bbox = None
self.zoom = None
self.center = None
self.radius = None
self.zoom_to_layers = None
self.extent = None
self.max_extent = None
self.bbox_factor = None
self.srs = None
self.layers = None
self.re_render_times = None
self.post_step_pause = None
self.max_resolution = None
self.find_and_replace = None
self.world_file = None
self.fonts = []
self.save_xml = None
self.app = None
self.dry_run = False
self.from_string = False
self.changed = []
self.font_handler = None
self.map = None
self.rendered = False
self.verbose = False
self.start_time = 0
self.load_map_time = 0
if kwargs:
self.handle_options(kwargs)
if not self.verbose:
self.msg = self.quiet
self.prepare()
self.setup()
self.build()
def handle_options(self,options):
for opt in options.items():
if opt[1] is not None and hasattr(self,opt[0]):
setattr(self,opt[0],opt[1])
self.changed.append(opt[0])
def prepare(self):
self.format = self.format.replace('image/','')
self.mime = 'image/%s' % self.format.replace('256','')
if self.fonts:
self.register_fonts()
def setup(self):
pass
def output_error(self, msg, E=None):
if E:
msg += E
raise sys.exit(msg)
def msg(self, msg, warn=False):
sys.stderr.write('%s\n' % msg)
def quiet(self, msg):
pass
def register_fonts(self):
self.msg('Registering fonts...')
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
def build(self):
self.msg('Loading mapfile...')
builder = Load(self.mapfile,variables={},from_string=self.from_string)
if not self.from_string:
self.msg('Loaded %s...' % self.mapfile)
else:
self.msg('Loaded XML from string')
self.map = builder.build_map(self.width,self.height)
if self.srs:
self.msg('Setting srs to: %s' % self.srs)
self.map.set_easy_srs(self.srs)
if self.layers:
selected, disactivated = self.map.select_layers(self.layers)
self.msg('Selected layers: %s' % selected)
if not selected:
self.output_error('Layer not found: available layers are: "%s"' % ', '.join(disactivated))
# handle shifts in pixel dimensions or bbox ratio
# need to make as an option
#try:
# self.map.aspect_fix_mode = mapnik.aspect_fix_mode.ADJUST_CANVAS_HEIGHT
#except:
# self.msg('aspect_fix_mode not available!')
# zoom to max extent at beginning if we later need to
# zoom to a center point
# or need to zoom to a zoom-level
self.msg('Setting Map view...')
if self.center or not self.zoom is None:
if self.max_extent:
self.msg('Zooming to max extent: %s' % self.max_extent)
self.map.zoom_to_box(mapnik.Envelope(*self.max_extent))
else:
self.map.zoom_max()
self.msg('Zoomed to *estimated* max extent: %s' % self.map.envelope())
if self.center and not self.zoom is None:
self.msg('Zooming to Center (%s) and Zoom Level "%s"' % (self.center,self.zoom))
self.map.set_center_and_zoom(self.center[0],self.center[1],self.zoom)
elif self.center and self.radius:
self.msg('Zooming to Center (%s) and Radius "%s"' % (self.center,self.radius))
self.map.set_center_and_radius(self.center[0],self.center[1],self.radius)
elif not self.zoom is None:
self.msg('Zooming to Zoom Level "%s"' % (self.zoom))
self.map.zoom_to_level(self.zoom)
elif self.zoom_to_layers:
self.msg('Zooming to Layers: "%s"' % (self.zoom_to_layers))
self.map.activate_layers(self.zoom_to_layers)
if len(self.zoom_to_layers) > 1:
self.map.zoom_to_layers(self.zoom_to_layers)
else:
self.map.zoom_to_layer(self.zoom_to_layers[0])
else:
if self.extent:
env = mapnik.Envelope(*self.extent)
self.msg('Zooming to custom projected extent: "%s"' % env)
self.map.zoom_to_box(env)
from_prj = mapnik.Projection(self.map.srs)
to_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
bbox = env.transform(from_prj,to_prj)
self.msg('Custom extent in geographic coordinates: "%s"' % bbox)
elif self.bbox:
env = mapnik.Envelope(*self.bbox)
self.msg('Zooming to custom geographic extent: "%s"' % env)
from_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
to_prj = mapnik.Projection(self.map.srs)
self.map.zoom_to_box(env.transform(from_prj,to_prj))
else:
self.map.zoom_all()
self.msg('Zoom to extent of all layers: "%s"' % self.map.envelope())
if self.bbox_factor:
if self.bbox_factor > 0:
bbox = self.map.envelope() * self.bbox_factor
else:
bbox = self.map.envelope() / self.bbox_factor
self.map.zoom_to_box(bbox)
self.msg('Adjusting final extent by factor of %s: "%s"' % (self.bbox_factor,self.map.envelope()))
self.msg('Finished setting extents...')
if self.save_xml:
mapnik.save_map(self.map,self.save_xml)
return builder
def render(self):
if not self.map:
self.build()
if self.dry_run:
self.output_error("Dry run completed successfully...")
renderer = Render(self.map,self.image,self.format,self.world_file)
if self.image:
renderer.render_file()
else:
renderer.print_stream()
self.rendered = True
return renderer
def call(self,cmd,fail=False):
try:
response = Popen(cmd.split(' '),stdin=PIPE, stdout=PIPE, stderr=PIPE)
cm = response.communicate()
return cm[0]
except Exception, e:
if fail:
raise SystemExit(e)
else:
return None
class Compose(object):
"""
"""
def __init__(self,mapfile,**kwargs):
"""
"""
self.mapfile = mapfile
self.image = None
self.format = 'png'
self.width = 600
self.height = 400
self.bbox = None
self.zoom = None
self.center = None
self.radius = None
self.zoom_to_layers = None
self.extent = None
self.max_extent = None
self.srs = None
self.layers = None
self.re_render_times = None
self.post_step_pause = None
self.max_resolution = None
self.find_and_replace = None
self.world_file = None
self.fonts = []
self.save_xml = None
self.app = None
self.dry_run = False
self.from_string = False
self.changed = []
self.font_handler = None
self.map = None
self.rendered = False
self.verbose = False
if self.verbose:
self.msg = self.verbose_msg
else:
self.msg = self.quiet
if kwargs:
self.handle_options(kwargs)
self.prepare()
self.setup()
self.build()
def handle_options(self,options):
for opt in options.items():
if opt[1] is not None and hasattr(self,opt[0]):
setattr(self,opt[0],opt[1])
self.changed.append(opt[0])
def prepare(self):
self.format = self.format.lower().replace('image/','')
self.mime = 'image/%s' % self.format.replace('256','')
if self.fonts:
self.register_fonts()
def setup(self):
pass
def output_error(self, msg, E=None):
if E:
msg += E
raise sys.exit(msg)
def verbose_msg(self, msg):
sys.stderr.write('%s\n' % msg)
def quiet(self, msg):
pass
def register_fonts(self):
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
def build(self):
self.msg('Loading mapfile...')
loader = Load(self.mapfile,variables={},from_string=self.from_string)
if not self.from_string:
self.msg('Loaded %s...' % self.mapfile)
else:
self.msg('Loaded XML from string')
self.map = loader.build_map(self.width,self.height)
if self.srs:
self.msg('Setting srs to: %s' % self.srs)
self.map.set_easy_srs(self.srs)
if self.layers:
selected, disactivated = self.map.select_layers(self.layers)
self.msg('Selected layers: %s' % selected)
if not selected:
self.output_error('Layer not found: available layers are: "%s"' % ', '.join(disactivated))
# handle shifts in pixel dimensions or bbox ratio
# need to make as an option
#try:
# self.map.aspect_fix_mode = mapnik.aspect_fix_mode.ADJUST_CANVAS_HEIGHT
#except:
# self.msg('aspect_fix_mode not available!')
# zoom to max extent at beginning if we later need to
# zoom to a center point
# or need to zoom to a zoom-level
if self.center or not self.zoom is None:
if self.max_extent:
self.msg('Zooming to max extent: %s' % self.max_extent)
self.map.zoom_to_box(mapnik.Envelope(*self.max_extent))
else:
self.map.zoom_max()
self.msg('Zoomed to *estimated* max extent: %s' % self.map.envelope())
if self.center and not self.zoom is None:
self.msg('Zooming to Center (%s) and Zoom Level "%s"' % (self.center,self.zoom))
self.map.set_center_and_zoom(self.center[0],self.center[1],self.zoom)
elif self.center and self.radius:
self.msg('Zooming to Center (%s) and Radius "%s"' % (self.center,self.radius))
self.map.set_center_and_radius(self.center[0],self.center[1],self.radius)
elif not self.zoom is None:
self.msg('Zooming to Zoom Level "%s"' % (self.zoom))
self.map.zoom_to_level(self.zoom)
elif self.zoom_to_layers:
self.msg('Zooming to Layers: "%s"' % (self.zoom_to_layers))
self.map.activate_layers(self.zoom_to_layers)
if len(self.zoom_to_layers) > 1:
self.map.zoom_to_layers(self.zoom_to_layers)
else:
self.map.zoom_to_layer(self.zoom_to_layers[0])
else:
if self.extent:
env = mapnik.Envelope(*self.extent)
self.msg('Zooming to custom projected extent: "%s"' % env)
self.map.zoom_to_box(env)
from_prj = mapnik.Projection(self.map.srs)
to_prj = mapnik.Projection('+init=epsg:4326')
bbox = env.transform(from_prj,to_prj)
self.msg('Custom extent in geographic coordinates: "%s"' % bbox)
elif self.bbox:
env = mapnik.Envelope(*self.bbox)
self.msg('Zooming to custom geographic extent: "%s"' % env)
from_prj = mapnik.Projection('+init=epsg:4326')
to_prj = mapnik.Projection(self.map.srs)
self.map.zoom_to_box(env.transform(from_prj,to_prj))
else:
self.map.zoom_all()
self.msg('Zoom to extent of all layers: "%s"' % self.map.envelope())
if self.save_xml:
mapnik.save_map(self.map,self.save_xml)
def render(self):
if not self.map:
self.build()
if self.dry_run:
self.output_error("Dry run completed successfully...")
renderer = Render(self.map,self.image,self.format,self.world_file)
if self.image:
renderer.render_file()
else:
renderer.print_stream()
self.rendered = True
def open(self, app=None):
"""
Routine to open the rendered image or folder of images from the filesystem.
"""
self.render()
if not app and self.app:
app = self.app
try:
if os.name == 'nt':
if app:
self.msg('Overriding default image viewer not yet supported on Win32')
os.system('start %s' % self.image.replace('/','\\'))
elif platform.uname()[0] == 'Linux':
if app:
os.system('%s %s' % (app, self.image))
elif platform.uname()[0] == 'Darwin':
if app:
os.system('open %s -a %s' % (self.image, app))
else:
os.system('open %s' % self.image)
except Exception:
pass # this is fluf, so fail quietly if there is a problem
class Compose(object):
"""
"""
def __init__(self, mapfile, **kwargs):
"""
"""
self.mapfile = mapfile
self.image = None
self.format = 'png'
self.width = 600
self.height = 400
self.bbox = None
self.zoom = None
self.center = None
self.radius = None
self.zoom_to_layers = None
self.extent = None
self.max_extent = None
self.bbox_factor = None
self.srs = None
self.layers = None
self.re_render_times = None
self.post_step_pause = None
self.max_resolution = None
self.find_and_replace = None
self.world_file = None
self.fonts = []
self.save_xml = None
self.app = None
self.dry_run = False
self.from_string = False
self.zip_compress = False
self.changed = []
self.font_handler = None
self.map = None
self.rendered = False
self.verbose = False
self.scale_factor = None
self.aspect_fix_mode = None
self.start_time = 0
self.load_map_time = 0
if kwargs:
self.handle_options(kwargs)
if not self.verbose:
self.msg = self.quiet
self.prepare()
self.setup()
self.build()
def handle_options(self, options):
for opt in options.items():
if opt[1] is not None and hasattr(self, opt[0]):
setattr(self, opt[0], opt[1])
self.changed.append(opt[0])
def prepare(self):
self.format = self.format.replace('image/', '')
self.mime = 'image/%s' % self.format.replace('256', '')
if self.fonts:
self.register_fonts()
def setup(self):
pass
def output_error(self, msg, E=None):
if E:
msg += E
raise sys.exit(msg)
def msg(self, msg, warn=False):
sys.stderr.write('%s\n' % msg)
def quiet(self, msg):
pass
def register_fonts(self):
self.msg('Registering fonts...')
from fonts import FontHandler
self.font_handler = FontHandler()
self.font_handler.add_fonts(self.fonts)
if self.font_handler.failed:
self.msg("Failed to register: '%s'" % self.font_handler.failed)
def build(self):
self.msg('Loading mapfile...')
builder = Load(self.mapfile,
variables={},
from_string=self.from_string,
verbose=self.verbose)
if not self.from_string:
self.msg('Loaded %s...' % self.mapfile)
else:
self.msg('Loaded XML from string')
self.map = builder.build_map(self.width, self.height)
if self.srs:
self.msg('Setting srs to: %s' % self.srs)
self.map.set_easy_srs(self.srs)
if self.layers:
selected, disactivated = self.map.select_layers(self.layers)
self.msg('Selected layers: %s' % selected)
if not selected:
self.output_error(
'Layer not found: available layers are: "%s"' %
', '.join(disactivated))
# set up behavior for fixing relationship between map aspect and bbox aspect
if self.aspect_fix_mode:
if not hasattr(self.map, 'aspect_fix_mode'):
self.output_error(
'Your version of Mapnik does not support setting the aspect_fix_mode (only available in >= Mapnik 0.6.0'
)
try:
mode = getattr(mapnik.aspect_fix_mode,
self.aspect_fix_mode.upper())
except AttributeError:
self.output_error(
'Error setting aspect_fix_mode, accepted values are: %s' %
', '.join(mapnik.aspect_fix_mode.names.keys()))
self.map.aspect_fix_mode = mode
# zoom to max extent at beginning if we later need to
# zoom to a center point
# or need to zoom to a zoom-level
self.msg('Setting Map view...')
if self.center or not self.zoom is None:
if self.max_extent:
self.msg('Zooming to max extent: %s' % self.max_extent)
self.map.zoom_to_box(mapnik.Box2d(*self.max_extent))
else:
self.map.zoom_max()
self.msg('Zoomed to *estimated* max extent: %s' %
self.map.envelope())
if self.center and not self.zoom is None:
self.msg('Zooming to Center (%s) and Zoom Level "%s"' %
(self.center, self.zoom))
self.map.set_center_and_zoom(self.center[0], self.center[1],
self.zoom)
elif self.center and self.radius:
self.msg('Zooming to Center (%s) and Radius "%s"' %
(self.center, self.radius))
self.map.set_center_and_radius(self.center[0], self.center[1],
self.radius)
elif not self.zoom is None:
self.msg('Zooming to Zoom Level "%s"' % (self.zoom))
self.map.zoom_to_level(self.zoom)
elif self.zoom_to_layers:
self.msg('Zooming to Layers: "%s"' % (self.zoom_to_layers))
self.map.activate_layers(self.zoom_to_layers)
if len(self.zoom_to_layers) > 1:
self.map.zoom_to_layers(self.zoom_to_layers)
else:
self.map.zoom_to_layer(self.zoom_to_layers[0])
else:
if self.extent:
env = mapnik.Box2d(*self.extent)
self.msg('Zooming to custom projected extent: "%s"' % env)
self.map.zoom_to_box(env)
from_prj = mapnik.Projection(self.map.srs)
to_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
bbox = env.forward(from_prj, to_prj)
self.msg('Custom extent in geographic coordinates: "%s"' %
bbox)
elif self.bbox:
env = mapnik.Box2d(*self.bbox)
self.msg('Zooming to custom geographic extent: "%s"' % env)
from_prj = mapnik.Projection('+proj=latlong +datum=WGS84')
to_prj = mapnik.Projection(self.map.srs)
self.map.zoom_to_box(env.forward(from_prj, to_prj))
else:
self.map.zoom_all()
self.msg('Zoom to extent of all layers: "%s"' %
self.map.envelope())
if self.bbox_factor:
if self.bbox_factor > 0:
bbox = self.map.envelope() * self.bbox_factor
else:
bbox = self.map.envelope() / self.bbox_factor
self.map.zoom_to_box(bbox)
self.msg('Adjusting final extent by factor of %s: "%s"' %
(self.bbox_factor, self.map.envelope()))
self.msg('Finished setting extents...')
if self.save_xml:
mapnik.save_map(self.map, self.save_xml)
return builder
def render(self):
if not self.map:
self.build()
if self.dry_run:
self.output_error("Dry run completed successfully...")
renderer = Render(self.map, self.image, self.format, self.world_file,
self.zip_compress, self.scale_factor)
if self.image == '-':
renderer.print_stream()
else:
renderer.render_file()
self.rendered = True
return renderer
def open(self, app=None):
"""
Routine to open the rendered image or folder of images from the filesystem.
"""
self.render()
if not app and self.app:
app = self.app
if os.name == 'nt':
if app:
self.msg(
'Overriding default image viewer not supported on Win32')
call('start %s' % self.image.replace('/', '\\'))
elif platform.uname()[0] == 'Linux':
if app:
call('%s %s' % (app, self.image))
else:
# make blind and dumb attempt to open images, but don't block while open
try:
cmd = 'xdg-open %s' % self.image
Popen(cmd.split(' '))
except OSError:
try:
cmd = 'gthumb %s' % self.image
Popen(cmd.split(' '))
except OSError:
try:
cmd = 'display %s' % self.image
Popen(cmd.split(' '))
except OSError:
pass
elif platform.uname()[0] == 'Darwin':
if app:
call('open %s -a %s' % (self.image, app))
else:
call('open %s' % self.image)