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;

Related functions to explore

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

axis, box, subplot

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.

About RunMat

RunMat is an open-source runtime that executes MATLAB-syntax code — faster, on any GPU, with no license required.

• Simulations that took hours now take minutes. RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed.
• Start running code in seconds. Open the browser sandbox or download a single binary. No license server, no IT ticket, no setup.
• A full development environment. GPU-accelerated 2D and 3D plotting, automatic versioning on every save, and a browser IDE you can share with a link.

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