Behavior when hovering over a LineString-type GeoDataFrame in holoviews/geoviews¶

This examples uses hvplot on a GeoDataFrame. But the same behavior is observed after converting from the GeoPandas GeoDataFrame to a geoviews Path or a Spatialpandas GeoDataFrame.

In [1]:

import geopandas as gpd
import hvplot.pandas

In [2]:

geojson_features = [
    {"type": "Feature", "properties": {"id": 19}, "geometry": {"type": "LineString", "coordinates": [[140.51, 4.40], [140.59, 4.33], [140.62, 4.29]]}}, 
    {"type": "Feature", "properties": {"id": 20}, "geometry": {"type": "LineString", "coordinates": [[140.61, 4.39], [140.65, 4.37], [140.69, 4.33]]}}
]

In [3]:

line_gdf = gpd.GeoDataFrame.from_features(geojson_features)
line_gdf

Out[3]:

	geometry	id
0	LINESTRING (140.51000 4.40000, 140.59000 4.330...	19
1	LINESTRING (140.61000 4.39000, 140.65000 4.370...	20

The desired behavior is for the whole line feature (all segments) to be highlighted on hover. Instead, only an individual line segment are highlighted.

In [4]:

line_gdf.hvplot(
    geo=True,
    color='black',
    hover_line_color='red',
    tools=['hover'], 
    hover_cols=['id'], 
)

/home/mayorga/miniconda3/envs/flowpilotviz/lib/python3.10/site-packages/geoviews/operation/__init__.py:14: HoloviewsDeprecationWarning: 'ResamplingOperation' is deprecated and will be removed in version 1.18, use 'ResampleOperation2D' instead.
  from holoviews.operation.datashader import (

Out[4]:

In [ ]: