I'm currently working with a geodataframe for New York City. However, I want my chart to only show a specific part of the city. Is there a way to set the latitude and longitude max and min in a mark_geoshape?
I would like my chart to show only from latitude 40.64 tot 40.84, and longitude -74.01 to -73.9.
Here's my current code:
ntaMap = alt.Chart(ntaData).mark_geoshape(
fill='whitesmoke',
stroke='gray',
strokeWidth=0.5
).encode(
tooltip=['NTAName','BoroName']
).properties(
width=500,
height=500,
title='Neighborhood Tabulation Areas'
).configure_view(
strokeWidth=0
)
ntaMap
Thanks!
If you are using a geopandas dataframe the easiest might be to filter your data to only contain the regions of interest. Otherwise, you can use scale
to zoom and translate
to pan:
import altair as alt
from vega_datasets import data
world = data.world_110m.url
alt.Chart(alt.topo_feature(world, 'countries')).mark_geoshape(
fill='#2a1d0c', stroke='#706545', strokeWidth=0.5
).project(
type='mercator', scale=400, translate=[100, 550])