[huxiaoyi-ovo]

Summary

Closes #753.

Implement animated visualization for RangeBearingSensor:

• Draw and update the sensing-region polygon using poly_style, accounting for the robot pose, range limits, and angular field of view.
• Draw and update the observed-landmark beam using line_style.
• Reuse Matplotlib artists across readings, hide the beam when no observation is available, and reset artists during initialization.
• Remove obsolete documentation and commented-out MATLAB code.

Validation

• Added headless Agg regression tests covering sensor movement, styling, artist reuse, missing observations, reset behaviour, and unspecified sensing limits.
• Full fork CI passed across Linux, macOS, and Windows with Python 3.10–3.14.
• Core tests: 1820 passed, 16 skipped, 106 subtests passed.
• mypy, documentation build, coverage and PR title checks passed.

[Full CI results](https://github.com/huxiaoyi-ovo/robotics-toolbox-python/actions/runs/39250192578)

Behaviour changes

When plot=True, the sensing region and observation beam are now rendered and updated. Sensor measurements and returned landmark IDs are unchanged.

AI Assistance

ChatGPT (OpenAI GPT-6) assisted with implementation and regression tests. The changes were reviewed and validated before submission.

[codacy-production]

Not up to standards ⛔

🔴 Issues 26 high

Alerts:
⚠ 26 issues (≤ 0 issues of at least minor severity)

Results:
26 new issues

Category	Results
ErrorProne	1 high
Security	25 high

View in Codacy

🟢 Metrics 31 complexity · 0 duplication

Metric	Results
Complexity	31
Duplication	0

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 55 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (6b85d77) to head (a06ce1b).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/roboticstoolbox/mobile/sensors.py	0.00%	55 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #858   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files        146     146           
  Lines      17241   17295   +54     
=====================================
- Misses     17241   17295   +54     

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[petercorke]

Thank you for this, and for the focused tests. The beam to the observed landmark and the sensing region behave well, line_style and poly_style now do what the docstring said, and hiding the beam on a missed or failed reading is a good detail. I checked it against current main: mypy is clean and the mobile tests pass. I'll update the branch with main and merge it once CI is green.