Fix: Grid not showing in altair if both draw_structure and draw_agnets are called.

[Sahil-Chhoker]

Summary

If both draw_structure and draw_agnets are called in altair backend, the grid won't show because the axis are overridden when layering the two charts.

Implementation

Resolved the axis for both x and y to independent to prevent overriding of axis because of charts.

Summary by CodeRabbit

• Refactor
  • Improved the display of layered spatial charts by setting their axes to be independent, enhancing clarity when viewing multiple chart layers.

[Sahil-Chhoker]

@coderabbitai full review

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✅ Actions performed

Full review triggered.

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Walkthrough

The update modifies how multiple spatial charts are combined in the SpaceRendererComponent function by applying independent resolution to the x and y axes using Altair's .resolve_axis(x="independent", y="independent") method. No other logic, control flow, or public API changes are introduced.

Changes

File(s)	Change Summary
mesa/visualization/solara_viz.py	Modified chart layering to set x and y axes as independent when combining multiple charts.

Estimated code review effort

1 (~2 minutes)

Poem

In the meadow of charts, axes roam free,
Each one independent, as far as can be.
No more crowding or tangled display,
The charts now layer in their own special way.
A hop and a skip, the data’s in view—
This bunny’s delighted with something so new! 🐇📊

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📥 Commits

Reviewing files that changed from the base of the PR and between 47eff74 and 13fc327.

📒 Files selected for processing (1)

• mesa/visualization/solara_viz.py (1 hunks)

🧠 Learnings (2)

📓 Common learnings

Learnt from: Sahil-Chhoker
PR: projectmesa/mesa#2803
File: mesa/visualization/backends/altair_backend.py:312-553
Timestamp: 2025-06-20T16:44:20.677Z
Learning: In mesa/visualization/backends/altair_backend.py, the author prefers to keep the draw_propertylayer method intact despite its complexity, as they believe breaking it into smaller functions would divert attention from the main logic flow. The method is well-documented and follows a clear sequence of operations for property layer rendering.

mesa/visualization/solara_viz.py (1)

Learnt from: Sahil-Chhoker
PR: #2803
File: mesa/visualization/backends/altair_backend.py:312-553
Timestamp: 2025-06-20T16:44:20.677Z
Learning: In mesa/visualization/backends/altair_backend.py, the author prefers to keep the draw_propertylayer method intact despite its complexity, as they believe breaking it into smaller functions would divert attention from the main logic flow. The method is well-documented and follows a clear sequence of operations for property layer rendering.

🧰 Additional context used

🧠 Learnings (2)

📓 Common learnings

Learnt from: Sahil-Chhoker
PR: projectmesa/mesa#2803
File: mesa/visualization/backends/altair_backend.py:312-553
Timestamp: 2025-06-20T16:44:20.677Z
Learning: In mesa/visualization/backends/altair_backend.py, the author prefers to keep the draw_propertylayer method intact despite its complexity, as they believe breaking it into smaller functions would divert attention from the main logic flow. The method is well-documented and follows a clear sequence of operations for property layer rendering.

mesa/visualization/solara_viz.py (1)

Learnt from: Sahil-Chhoker
PR: #2803
File: mesa/visualization/backends/altair_backend.py:312-553
Timestamp: 2025-06-20T16:44:20.677Z
Learning: In mesa/visualization/backends/altair_backend.py, the author prefers to keep the draw_propertylayer method intact despite its complexity, as they believe breaking it into smaller functions would divert attention from the main logic flow. The method is well-documented and follows a clear sequence of operations for property layer rendering.

⏰ Context from checks skipped due to timeout of 180000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: run-benchmarks

🔇 Additional comments (1)

mesa/visualization/solara_viz.py (1)

322-324: Excellent fix for the axis override issue!

This change correctly addresses the grid visibility problem by ensuring independent axis resolution when layering multiple spatial charts. Without this fix, when draw_structure and draw_agents are both called, the resulting layered charts could have their axis settings override each other, causing the grid to disappear. The .resolve_axis(x="independent", y="independent") ensures each chart maintains its own axis configuration.

✨ Finishing Touches

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[github-actions]

Performance benchmarks:

Model	Size	Init time [95% CI]	Run time [95% CI]
BoltzmannWealth	small	🔵 -2.0% [-3.1%, -0.9%]	🔵 -0.2% [-0.4%, -0.0%]
BoltzmannWealth	large	🔵 -1.9% [-3.2%, -1.0%]	🔵 -5.4% [-7.9%, -3.0%]
Schelling	small	🔵 -0.9% [-1.1%, -0.7%]	🔵 -0.6% [-0.8%, -0.4%]
Schelling	large	🔵 -1.0% [-1.4%, -0.5%]	🔵 -2.3% [-4.4%, -0.6%]
WolfSheep	small	🔵 +1.3% [+0.9%, +1.6%]	🔵 +1.0% [+0.7%, +1.2%]
WolfSheep	large	🔵 +1.1% [+0.0%, +2.1%]	🔴 +5.7% [+3.2%, +7.8%]
BoidFlockers	small	🔵 -2.9% [-3.4%, -2.4%]	🔵 -2.5% [-2.7%, -2.3%]
BoidFlockers	large	🔵 -2.9% [-3.4%, -2.4%]	🔵 -1.7% [-2.1%, -1.3%]

[tpike3]

LGTM