too many indices for array: array is 0-dimensional, but 2 were indexed

[NoOneUST]

Hello, I follow the tutorial to load the map expansion.

The code I use is:

Then the error occurs.

Here I provide more details about the processed object:

[whyekit-motional]

@NoOneUST your code seems to work for me:

from nuscenes.map_expansion.map_api import NuScenesMap
from nuscenes.map_expansion import arcline_path_utils
from nuscenes.map_expansion.bitmap import BitMap

nusc_map = NuScenesMap(dataroot='/data/sets/nuscenes', map_name='singapore-onenorth')
nusc_map.render_layers(nusc_map.non_geometric_layers, figsize=1)

Based on the screenshot you have provided, I see that the error is thrown by the descartes library - you could check if your version of descartes matches mine:

Name: descartes
Version: 1.1.0
Summary: Use geometric objects as matplotlib paths and patches
Home-page: http://bitbucket.org/sgillies/descartes/
Author: Sean Gillies
Author-email: sean.gillies@gmail.com
License: BSD
Location: /home_shared/whyekit/.conda/envs/nuenv/lib/python3.9/site-packages
Requires: matplotlib
Required-by: nuscenes-devkit

[secret104278]

downgrade shapely works for me

pip install shapely==1.8.5