background = RadioGroup(labels=["topografie", "luchtfoto"], active=0)
background.on_change("active", update_background)
map_controls = column(Div(text="<b>Kaartopties</b><br><br>Kaartlagen"),
map_layers, Div(text="Achtergrond"), background)
# %% define main filter selection and handlers
filters = list()
for name, subfilter in zip(data.filters.names, data.filters.filters):
select_filter = MultiSelect(
title=f"{name}:",
value=subfilter.value,
options=subfilter.options,
)
select_filter.size = min(len(subfilter.options), 7)
select_filter.on_change("value", update_on_filter_select)
filters += [select_filter]
# %% define location selection and handlers
select_locations = MultiSelect(title="Locaties:",
value=[],
options=data.locations.options)
select_locations.on_change("value", update_on_locations_select)
# select_locations.js_link("value",
# data.locations.source.selected,
# "indices")
# %% define parameter selection and handlers
select_parameters = MultiSelect(title="Parameters:",
