Implement popup option in folium.TopoJson layer
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Start by comparing the folium.TopoJson and folium.GeoJson entry points, focusing on how tooltip and popup options are handled in the examples. Trace how feature properties reach generated map output, then determine what equivalent dynamic popup behavior would require for TopoJson. Done means each polygon can display popup content from its own properties while existing styling and tooltip behavior continue to work.
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描述
I am making a map with different colors and popups for each group of polygons.
I did it using folium.GeoJson and it worked. The problem is slow to render.
I tested using folium.TopoJson and the rendering is much better!! However, I can't put a dynamic popup, using the properties of json, as I do like folium.GeoJson.
I have tried iteration (for), adding in a FeatureGroup... also without sucess.
Is there any way to insert a dynamic popup using folium.TopoJson?
If not, I leave the suggestion to include ...
:)
TopoJson renders faster. I would like to make the popup because I am inserting the map in a Django project.
Code using folium.GeoJson. Slow, but works!
import folium
import geopandas as gpd
from folium import plugins
# Read
gdf = gpd.read_file('https://raw.githubusercontent.com/michelmetran/sp_bombeiro/main/data/shps/sp_bombeiros.geojson')
# Dict
color_polygon = {
'1º Grupamento de Bombeiros': '#ffff99',
'5º Grupamento de Bombeiros': '#a6cee3',
'6º Grupamento de Bombeiros': '#1f78b4',
'7º Grupamento de Bombeiros': '#b2df8a',
'8º Grupamento de Bombeiros': '#33a02c',
'9º Grupamento de Bombeiros': '#fb9a99',
'10º Grupamento de Bombeiros': '#a6cee3',
'11º Grupamento de Bombeiros': '#1f78b4',
'12º Grupamento de Bombeiros': '#b2df8a',
'13º Grupamento de Bombeiros': '#33a02c',
'14º Grupamento de Bombeiros': '#fb9a99',
'15º Grupamento de Bombeiros': '#e31a1c',
'16º Grupamento de Bombeiros': '#fdbf6f',
'17º Grupamento de Bombeiros': '#ff7f00',
'18º Grupamento de Bombeiros': '#cab2d6',
'19º Grupamento de Bombeiros': '#6a3d9a',
'20º Grupamento de Bombeiros': '#b15928'
}
# Map
m = folium.Map([-23, -47], zoom_start=6)
# Layer
folium.GeoJson(
gdf,
name='Bombeiros',
smooth_factor=1.0,
#zoom_on_click=True,
embed=False,
style_function=lambda x: {
'fillColor': color_polygon[x['properties']['gb_nome']],
'color': color_polygon[x['properties']['gb_nome']],
'weight': 1,
'fillOpacity': 0.3,
},
highlight_function=lambda x: {'weight': 3},
tooltip=folium.features.GeoJsonTooltip(
fields=['municipio_nome', 'gb_sigla'],
aliases=['Munícipio', 'Grupamento'],
sticky=True,
opacity=0.9,
direction='right',
),
popup=folium.GeoJsonPopup(
['popup'],
parse_html=False,
max_width='300',
show=False,
labels=False,
sticky=True,
)
).add_to(m)
# Plugins
m.fit_bounds(m.get_bounds())
plugins.Fullscreen(
position='topleft',
title='Clique para Maximizar',
title_cancel='Mininizar',
).add_to(m)
m
Code using folium.TopoJson. Faster. Without dinamic popups...
import folium
import requests
# Url Data
url = 'https://raw.githubusercontent.com/michelmetran/sp_bombeiro/main/data/shps/sp_bombeiros.json'
# Map
m = folium.Map([-23, -47], zoom_start=6)
# Dict
color_polygon = {
'1º Grupamento de Bombeiros': '#ffff99',
'5º Grupamento de Bombeiros': '#a6cee3',
'6º Grupamento de Bombeiros': '#1f78b4',
'7º Grupamento de Bombeiros': '#b2df8a',
'8º Grupamento de Bombeiros': '#33a02c',
'9º Grupamento de Bombeiros': '#fb9a99',
'10º Grupamento de Bombeiros': '#a6cee3',
'11º Grupamento de Bombeiros': '#1f78b4',
'12º Grupamento de Bombeiros': '#b2df8a',
'13º Grupamento de Bombeiros': '#33a02c',
'14º Grupamento de Bombeiros': '#fb9a99',
'15º Grupamento de Bombeiros': '#e31a1c',
'16º Grupamento de Bombeiros': '#fdbf6f',
'17º Grupamento de Bombeiros': '#ff7f00',
'18º Grupamento de Bombeiros': '#cab2d6',
'19º Grupamento de Bombeiros': '#6a3d9a',
'20º Grupamento de Bombeiros': '#b15928'
}
# Layer
lyr = folium.TopoJson(
#open(os.path.join('data', 'shps', 'sp_bombeiros.json')), # Local File
requests.get(url).json(),
object_path='objects.data',
name='São Paulo',
style_function=lambda x: {
'fillColor': color_polygon[x['properties']['gb_nome']],
'color': color_polygon[x['properties']['gb_nome']],
'weight': 1,
'fillOpacity': 0.3,
},
tooltip=folium.features.GeoJsonTooltip(
fields=['municipio_nome', 'gb_sigla'],
aliases=['Munícipio', 'Grupamento'],
sticky=True,
opacity=0.9,
direction='right',
),
#popup='test', # Doesnt Work! ERROR!
)
lyr.add_child(
folium.Popup(
#'test', # Doesnt Work, static text...
#['popup'], # Doesnt Work, blank
gdf['popup'][0], # Doesnt Work STATIC INFOS, NOT DYNAMIC!
#lambda x: x['properties']['popup'], # Doesnt Work
#sticky=False,
#localize=True,
#parse_html=False,
max_width=400
)
)
# Add Layer to Map
lyr.add_to(m)
# Apresenta o mapa
m.fit_bounds(m.get_bounds())
plugins.Fullscreen(
position='topleft',
title='Clique para Maximizar',
title_cancel='Mininizar',
).add_to(m)
m
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