def get_data(self, element, ranges=None, empty=False):
tile_sources = [
ts for ts in element.data if isinstance(ts, WMTSTileSource)
]
if not tile_sources:
raise SkipRendering("No valid WMTSTileSource found in WMTS "
"Element, rendering skipped.")
return {}, {'tile_source': tile_sources[0]}
def get_data(self, element, ranges, style):
tile_sources = [
ts for ts in element.data if isinstance(ts, util.basestring)
]
if not tile_sources:
raise SkipRendering("No valid tile source URL found in WMTS "
"Element, rendering skipped.")
return (tile_sources[0], element.layer), style, {}
def get_data(self, element, ranges, style):
if WebMapTileService is None:
raise SkipRendering('WMTS element requires owslib and PIL '
'to be installed.')
tile_source = None
for url in element.data:
if isinstance(url, util.basestring):
try:
tile_source = WebMapTileService(url)
break
except:
pass
elif isinstance(url, WebMapTileService):
tile_source = url
break
if tile_source is None:
raise SkipRendering("No valid tile source URL found in WMTS "
"Element, rendering skipped.")
return (tile_source, element.layer), style, {}
def get_data(self, element, ranges, style):
if self.geographic:
vdim = element.vdims[0] if element.vdims else None
value = element.level
if vdim is not None and (value is not None and np.isfinite(value)):
self._norm_kwargs(element, ranges, style, vdim)
style['clim'] = style.pop('vmin'), style.pop('vmax')
style['array'] = np.array([value])
return ([element.data], element.crs), style, {}
else:
SkipRendering('Shape can only be plotted on geographic plot, '
'supply a coordinate reference system.')
def get_data(self, element, ranges, style):
if not isinstance(element.data, util.basestring):
SkipRendering("WMTS element data must be a URL string, "
"bokeh cannot render %r" % element.data)
if '{Q}' in element.data:
tile_source = QUADKEYTileSource
elif all(kw in element.data
for kw in ('{XMIN}', '{XMAX}', '{YMIN}', '{YMAX}')):
tile_source = BBoxTileSource
elif all(kw in element.data for kw in ('{X}', '{Y}', '{Z}')):
tile_source = WMTSTileSource
else:
raise ValueError('Tile source URL format not recognized.')
return {}, {'tile_source': tile_source(url=element.data)}, style
def get_data(self, element, ranges, style):
tile_source = None
for url in element.data:
if isinstance(url, util.basestring) and not url.endswith('cgi'):
try:
tile_source = WMTSTileSource(url=url)
break
except:
pass
elif isinstance(url, WMTSTileSource):
tile_source = url
break
if tile_source is None:
raise SkipRendering("No valid tile source URL found in WMTS "
"Element, rendering skipped.")
return {}, {'tile_source': tile_source}, style
def get_data(self, element, ranges, style):
if not isinstance(element.data, util.basestring):
SkipRendering("WMTS element data must be a URL string, "
"bokeh cannot render %r" % element.data)
if '{Q}' in element.data:
tile_source = QUADKEYTileSource
elif all(kw in element.data for kw in ('{XMIN}', '{XMAX}', '{YMIN}', '{YMAX}')):
tile_source = BBoxTileSource
elif all(kw in element.data for kw in ('{X}', '{Y}', '{Z}')):
tile_source = WMTSTileSource
else:
raise ValueError('Tile source URL format not recognized. '
'Must contain {X}/{Y}/{Z}, {XMIN}/{XMAX}/{YMIN}/{YMAX} '
'or {Q} template strings.')
params = {'url': element.data}
for zoom in ('min_zoom', 'max_zoom'):
if zoom in style:
params[zoom] = style[zoom]
for key, attribution in _ATTRIBUTIONS.items():
if all(k in element.data for k in key):
params['attribution'] = attribution
return {}, {'tile_source': tile_source(**params)}, style
def widgets_from_dimensions(cls, object, widget_types=None, widgets_type='individual'):
from holoviews.core import Dimension, DynamicMap
from holoviews.core.options import SkipRendering
from holoviews.core.util import isnumeric, unicode, datetime_types, unique_iterator
from holoviews.core.traversal import unique_dimkeys
from holoviews.plotting.plot import Plot, GenericCompositePlot
from holoviews.plotting.util import get_dynamic_mode
from ..widgets import Widget, DiscreteSlider, Select, FloatSlider, DatetimeInput, IntSlider
if widget_types is None:
widget_types = {}
if isinstance(object, GenericCompositePlot):
object = object.layout
elif isinstance(object, Plot):
object = object.hmap
if isinstance(object, DynamicMap) and object.unbounded:
dims = ', '.join('%r' % dim for dim in object.unbounded)
msg = ('DynamicMap cannot be displayed without explicit indexing '
'as {dims} dimension(s) are unbounded. '
'\nSet dimensions bounds with the DynamicMap redim.range '
'or redim.values methods.')
raise SkipRendering(msg.format(dims=dims))
dynamic, bounded = get_dynamic_mode(object)
dims, keys = unique_dimkeys(object)
if ((dims == [Dimension('Frame')] and keys == [(0,)]) or
(not dynamic and len(keys) == 1)):
return [], {}
nframes = 1
values = dict() if dynamic else dict(zip(dims, zip(*keys)))
dim_values = OrderedDict()
widgets = []
dims = [d for d in dims if values.get(d) is not None or
d.values or d.range != (None, None)]
for i, dim in enumerate(dims):
widget_type, widget, widget_kwargs = None, None, {}
if widgets_type == 'individual':
if i == 0 and i == (len(dims)-1):
margin = (20, 20, 20, 20)
elif i == 0:
margin = (20, 20, 5, 20)
elif i == (len(dims)-1):
margin = (5, 20, 20, 20)
else:
margin = (0, 20, 5, 20)
kwargs = {'margin': margin, 'width': 250}
else:
kwargs = {}
vals = dim.values or values.get(dim, None)
if vals is not None:
vals = list(unique_iterator(vals))
dim_values[dim.name] = vals
if widgets_type == 'scrubber':
if not vals:
raise ValueError('Scrubber widget may only be used if all dimensions define values.')
nframes *= len(vals)
elif dim.name in widget_types:
widget = widget_types[dim.name]
if isinstance(widget, Widget):
widget.param.set_param(**kwargs)
if not widget.name:
widget.name = dim.label
widgets.append(widget)
continue
elif isinstance(widget, dict):
widget_type = widget.get('type', widget_type)
widget_kwargs = dict(widget)
elif isinstance(widget, type) and issubclass(widget, Widget):
widget_type = widget
else:
raise ValueError('Explicit widget definitions expected '
'to be a widget instance or type, %s '
'dimension widget declared as %s.' %
(dim, widget))
widget_kwargs.update(kwargs)
if vals:
if all(isnumeric(v) or isinstance(v, datetime_types) for v in vals) and len(vals) > 1:
vals = sorted(vals)
labels = [unicode(dim.pprint_value(v)) for v in vals]
options = OrderedDict(zip(labels, vals))
widget_type = widget_type or DiscreteSlider
else:
options = list(vals)
widget_type = widget_type or Select
default = vals[0] if dim.default is None else dim.default
widget_kwargs = dict(dict(name=dim.label, options=options, value=default), **widget_kwargs)
widget = widget_type(**widget_kwargs)
elif dim.range != (None, None):
start, end = dim.range
if start == end:
continue
default = start if dim.default is None else dim.default
if widget_type is not None:
pass
elif all(isinstance(v, int) for v in (start, end, default)):
widget_type = IntSlider
step = 1 if dim.step is None else dim.step
elif isinstance(default, datetime_types):
widget_type = DatetimeInput
else:
widget_type = FloatSlider
step = 0.1 if dim.step is None else dim.step
widget_kwargs = dict(dict(step=step, name=dim.label, start=dim.range[0],
end=dim.range[1], value=default),
**widget_kwargs)
widget = widget_type(**widget_kwargs)
if widget is not None:
widgets.append(widget)
if widgets_type == 'scrubber':
widgets = [Player(length=nframes, width=550)]
return widgets, dim_values
def get_data(self, element, ranges, style):
if not isinstance(element.data, util.basestring):
SkipRendering("WMTS element data must be a URL string, "
"bokeh cannot render %r" % element.data)
return {}, {'tile_source': WMTSTileSource(url=element.data)}, style
