def fews_symbol_name(
jdbc_source, filterkey, locationkey, parameterkey, nodata=False,
styles=None, lookup=None):
"""
Find fews symbol name.
Copied from lizard_fewsunblobbed.
"""
# determine icon layout by looking at filter.id
# style_name = 'adf'
# if str(filterkey) in LAYER_STYLES:
# icon_style = copy.deepcopy(LAYER_STYLES[str(filterkey)])
# else:
# icon_style = copy.deepcopy(LAYER_STYLES['default'])
style_name, icon_style = IconStyle.style(
jdbc_source, filterkey, locationkey, parameterkey, styles, lookup)
#make icon grey
if nodata:
icon_style['color'] = (0.9, 0.9, 0.9, 0)
# apply icon layout using symbol manager
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
icon_style['icon'], **icon_style)
return style_name, output_filename
def style(self):
"""Return mapnik point style.
"""
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
icon = ICON_STYLE['icon']
mask = ICON_STYLE['mask']
override_color = self.measurement.supplier.html_color
if override_color:
override_color = override_color.lstrip('#')
try:
color = html_to_mapnik(override_color)
except ValueError:
color = ICON_STYLE['color']
else:
color = ICON_STYLE['color']
output_filename = symbol_manager.get_symbol_transformed(
icon, mask=mask, color=color, icon=icon, size=ICON_SIZE)
output_filename_abs = os.path.join(
settings.MEDIA_ROOT, 'generated_icons', output_filename)
# use filename in mapnik pointsymbolizer
point_looks = mapnik.PointSymbolizer(
output_filename_abs, 'png', 16, 16)
point_looks.allow_overlap = True
layout_rule = mapnik.Rule()
layout_rule.symbols.append(point_looks)
points_style = mapnik.Style()
points_style.rules.append(layout_rule)
return points_style
def fews_symbol_name(jdbc_source, filterkey, locationkey, parameterkey,
nodata=False, styles=None, lookup=None):
"""
Find fews symbol name.
Copied from lizard_fewsunblobbed.
"""
if isinstance(jdbc_source, JdbcSource):
style_name, icon_style = IconStyle.style(
jdbc_source, filterkey, locationkey, parameterkey, styles, lookup)
else:
style_name, icon_style = IconStyleWebRS.style(
jdbc_source, filterkey, locationkey, parameterkey, styles, lookup)
#make icon grey
if nodata:
icon_style['color'] = (0.9, 0.9, 0.9, 0)
# apply icon layout using symbol manager
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
icon_style['icon'], **icon_style)
return style_name, output_filename
def fews_symbol_name(
fews_filter_pk, fews_location_pk, fews_parameter_pk,
nodata=False, styles=None, lookup=None):
"""Find fews symbol name"""
# determine icon layout by looking at filter.id
# if str(fews_filter.fews_id) in LAYER_STYLES:
# icon_style = copy.deepcopy(LAYER_STYLES[str(fews_filter.fews_id)])
# else:
# icon_style = copy.deepcopy(LAYER_STYLES['default'])
style_name, icon_style = IconStyle.style(
fews_filter_pk, fews_location_pk, fews_parameter_pk, styles, lookup)
#make icon grey
if nodata:
icon_style['color'] = (0.9, 0.9, 0.9, 0)
# apply icon layout using symbol manager
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
icon_style['icon'], **icon_style)
return style_name, output_filename
def _get_location_style(self):
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
ICON_STYLE['icon'], **ICON_STYLE)
output_filename_abs = os.path.join(
settings.MEDIA_ROOT, 'generated_icons', output_filename)
# use filename in mapnik pointsymbolizer
point_symbolizer = mapnik.PointSymbolizer(*get_pointsymbolizer_args(output_filename_abs))
point_symbolizer.allow_overlap = True
text_symbolizer = mapnik.TextSymbolizer(mapnik.Expression('[Name]'), 'DejaVu Sans Book', 11, mapnik.Color('black'))
text_symbolizer.displacement = (8, -8)
text_symbolizer.vertical_alignment = mapnik.vertical_alignment.TOP
text_symbolizer.horizontal_alignment = mapnik.horizontal_alignment.RIGHT
text_symbolizer.halo_fill = mapnik.Color('white')
text_symbolizer.halo_radius = 1
text_symbolizer.allow_overlap = True
text_symbolizer.avoid_edges = False
layout_rule = mapnik.Rule()
layout_rule.symbols.append(point_symbolizer)
layout_rule.symbols.append(text_symbolizer)
point_style = mapnik.Style()
point_style.rules.append(layout_rule)
return point_style
def symbol_filename(color):
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
filename = symbol_manager.get_symbol_transformed(
default_symbol_name(), mask=(default_symbol_mask(),),
color=color)
return filename
def symbol_filename(color):
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
'meetpuntPeil.png', mask=('meetpuntPeil_mask.png',),
color=color)
output_filename_abs = os.path.join(
settings.MEDIA_ROOT, 'generated_icons', output_filename)
return output_filename_abs
def legend_image_urls(self):
"""
returns symbol
TODO: the identifier is always None, so individual symbols
cannot be retrieved.
"""
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
ICON_STYLE['icon'], **ICON_STYLE)
icon = '%sgenerated_icons/%s' % (settings.MEDIA_URL, output_filename)
return [icon]
def symbol_url(self, identifier=None, start_date=None, end_date=None,
icon_style=None):
"""Return symbol for identifier.
Implementation: respect the fact when icon_style is already
given. If it's empty, generate own icon if applicable.
"""
sm = SymbolManager(ICON_ORIGINALS, os.path.join(
settings.MEDIA_ROOT,
'generated_icons'))
if icon_style is None:
icon_style = {'icon': 'empty.png'}
output_filename = sm.get_symbol_transformed(icon_style['icon'],
**icon_style)
return settings.MEDIA_URL + 'generated_icons/' + output_filename
def symbol_filename(icon, mask, color):
"""
Generates symbol and returns symbol filename. Uses SymbolManager
to generate icons.
TODO: Move ICON_ORIGINALS from lizard_map.models to here?
Input:
icon: icon filename, i.e. empty.png
mask: mask filename,
color: color tuple, i.e. (1.0, 1.0, 1.0, 1.0)
"""
from lizard_map.models import ICON_ORIGINALS
icon_style = {"icon": icon, "mask": (mask,), "color": color.to_tuple()}
symbol_manager = SymbolManager(ICON_ORIGINALS, os.path.join(settings.MEDIA_ROOT, "generated_icons"))
output_filename = symbol_manager.get_symbol_transformed(icon_style["icon"], **icon_style)
return output_filename
def style(self):
"""
Make mapnik point style
"""
symbol_manager = SymbolManager(
ICON_ORIGINALS, os.path.join(settings.MEDIA_ROOT,
'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
ICON_STYLE['icon'], **ICON_STYLE)
output_filename_abs = os.path.join(settings.MEDIA_ROOT,
'generated_icons', output_filename)
point_looks = mapnik.PointSymbolizer()
point_looks.filename = output_filename_abs
point_looks.allow_overlap = True
layout_rule = mapnik.Rule()
layout_rule.symbols.append(point_looks)
point_style = mapnik.Style()
point_style.rules.append(layout_rule)
return point_style
def style(self):
"""
Make mapnik point style
"""
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
ICON_STYLE['icon'], **ICON_STYLE)
output_filename_abs = os.path.join(
settings.MEDIA_ROOT, 'generated_icons', output_filename)
point_looks = mapnik.PointSymbolizer()
point_looks.filename = output_filename_abs
point_looks.allow_overlap = True
layout_rule = mapnik.Rule()
layout_rule.symbols.append(point_looks)
point_style = mapnik.Style()
point_style.rules.append(layout_rule)
return point_style
def _default_mapnik_style(self):
"""
Default implementation, not using any external django objects.
TODO: make configurable.
"""
icon_style = {
'icon': 'meetpuntPeil.png',
'mask': ('meetpuntPeil_mask.png', ),
'color': (1.0, 0.5, 0.0, 1.0)}
symbol_manager = SymbolManager(
ICON_ORIGINALS,
os.path.join(settings.MEDIA_ROOT, 'generated_icons'))
output_filename = symbol_manager.get_symbol_transformed(
icon_style['icon'], **icon_style)
output_filename_abs = os.path.join(
settings.MEDIA_ROOT, 'generated_icons', output_filename)
# use filename in mapnik pointsymbolizer
point_looks = mapnik.PointSymbolizer(
str(output_filename_abs), 'png', 16, 16)
point_looks.allow_overlap = True
layout_rule = mapnik.Rule()
layout_rule.symbols.append(point_looks)
area_looks = mapnik.PolygonSymbolizer(mapnik.Color("#ff8877"))
line_looks = mapnik.LineSymbolizer(mapnik.Color('#997766'), 1)
layout_rule.symbols.append(area_looks)
layout_rule.symbols.append(line_looks)
# We use 'class' to filter the correct style for the locations
# layout_rule.filter = mapnik.Filter(
# "[style] = '%s'" % str(point_style_name))
point_style = mapnik.Style()
point_style.rules.append(layout_rule)
return point_style
from lizard_map.models import ICON_ORIGINALS
from lizard_map.symbol_manager import SymbolManager
from lizard_map.workspace import WorkspaceItemAdapter
from lizard_riool.models import Manhole
from lizard_riool.models import Sewer
from lizard_riool.models import SewerMeasurement
from lizard_riool.models import CLASSES
logger = logging.getLogger(__name__)
MEDIA_URL = settings.MEDIA_URL
STATIC_URL = settings.STATIC_URL
GENERATED_ICONS = os.path.join(settings.MEDIA_ROOT, 'generated_icons')
SYMBOL_MANAGER = SymbolManager(ICON_ORIGINALS, GENERATED_ICONS)
RIOOL_ICON = 'pixel2.png'
RIOOL_ICON_LARGE = 'pixel16.png'
DATABASE = settings.DATABASES['default']
PARAMS = {
'host': DATABASE['HOST'],
'port': DATABASE['PORT'],
'user': DATABASE['USER'],
'password': DATABASE['PASSWORD'],
'dbname': DATABASE['NAME'],
}
def html_to_mapnik(color):
r, g, b = color[0:2], color[2:4], color[4:6]
