Module commonroad.visualization.plot_helper can't be found

CommonRoad-RL
1

Hi:
I try to use the Module “visualize” in directory /commonroad_rl/tools/visualize_cr.py.
In Line 22, the code says:

from commonroad.visualization.plot_helper import (
     set_non_blocking,
     redraw_obstacles,
     draw_object,
)

But the code checker tells me the "commonroad.visualization.plot_helper "can’t be found.
I run the code in VS code, and have pip install the commonroad-all and commonroad-io.
So, could you give me some hint or instructions on what i should do?
Thanks.

2

And i also find the following codes in tutorial for commonroad_rl:

from commonroad.common.file_reader import CommonRoadFileReader
from commonroad.visualization.draw_dispatch_cr import draw_object

But there is no “commonroad.visualiztiion.draw_dispatch_cr” in commonroad module.
So i find the problem maybe same.

3

Hi,

which version of commonroad-rl are you using? The most updated one here does not have the imports you mentioned.

Best,
Xiao

4

Hi:
The problem happens on commonroad_rl version 1.0, the information for this version is as follows:

  __author__ = "Niels Mündler"
  __copyright__ = ""
  __credits__ = [""]
  __version__ = "1.0"
  __maintainer__ = "Xiao Wang"
  __email__ = "xiao.wang@tum.de"
  __status__ = "Released"

This version of “visualize_cr.py” in commonroad_rl/tools seems need to import commonroad.visualization.plot_helper.But there is no such module under my commonroad.
I have already tried the latest version for commonroad_rl.
It seems work on my laptop. But with the latest version of commonroad_rl, my test data results changed a lot.
So I wonder if there were some old version of commonraod have commonroad.visualization.plot_helper then i can go on with the old version.
Thanks.

5

Hi,

this version of commonroad-io still has plot_helper: commonroad/visualization · release_2021.1 · tum-cps / commonroad-io · GitLab. However, you would need to downgrade also other commonroad modules to be compatible with this version of commonroad-io. Therefore, I would suggest you upgrade commonroad-rl to the current version. Also, the current version has more bug fixes and features than the old ones.

Best,
Xiao

6

OK.I will try to move my codes and Modules to the latest version.
Thank you for your help.