`grid` — Toggle grid lines for charts, subplots, and MATLAB `grid on` / `grid off` workflows.

grid controls the visibility of axes grid lines on the active subplot or axes selection. It supports the familiar MATLAB command-style forms grid on, grid off, and bare grid toggling, while returning the resulting boolean state in RunMat.

How `grid` works in RunMat

grid on enables grid lines on the current axes.
grid off disables grid lines on the current axes.
Calling grid with no argument toggles the current state.
Grid visibility is subplot-local and does not spill into other axes automatically.

Examples

Enable grid lines on a simple line chart

plot(1:5, [1 4 2 5 3]);
grid on;

Toggle grid lines in one subplot only

subplot(1, 2, 1);
plot(1:5, 1:5);
grid off;
subplot(1, 2, 2);
plot(1:5, [5 4 3 2 1]);
grid on;

FAQ

Does RunMat support minor grid lines?

Not yet — grid on enables major grid lines only. Minor grid support (the MATLAB grid minor form) is planned. For now, you get the primary tick grid, which covers most use cases.

Can I style the grid line color or width?

Grid styling is tied to axes properties. You can adjust the grid appearance through the axes handle with set(gca, 'GridColor', [0.5 0.5 0.5]) and related properties when the axes property path supports them. Check get(gca) to see what's currently exposed.

Does grid state carry across subplots?

No. Grid visibility is subplot-local. Calling grid on in one panel doesn't turn it on in others — you need to enable it explicitly in each subplot where you want grid lines.

These functions work well alongside grid. Each page has runnable examples you can try in the browser.

axis, box, subplot

More plotting resources

Open-source implementation

Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how grid works, line by line, in Rust.

View grid.rs on GitHub
Learn how the runtime works
Found a bug? Open an issue with a minimal reproduction.

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grid — Toggle grid lines for charts, subplots, and MATLAB grid on / grid off workflows.

How grid works in RunMat