`area` — Create filled area plots for cumulative totals, stacked series, and MATLAB `area` workflows.

area creates filled area plots from vector or matrix-style inputs. In RunMat it returns an area-handle object, supports baseline-based and stacked-series workflows, and uses GPU-backed geometry generation together with the shared plotting object and rendering systems.

How `area` works in RunMat

area(y) uses implicit x-values 1:n, while area(x, y) uses explicit x coordinates.
Matrix-style y inputs create stacked area series in the MATLAB style.
The returned value is an area-handle object that works with get and set.
Baseline and color workflows flow through the shared plotting property model.
Stacked-series geometry can be emitted directly from GPU buffers on the happy path.

Options

'BaseValue' sets the baseline used by area filling.
Color and display-name workflows are available through the returned handle and the shared plotting property path.

How `area` runs on the GPU

The direct area path emits filled geometry from GPU data on the happy path.

Baseline semantics, stacked-series behavior, and handle/property workflows remain aligned across GPU and fallback paths.

GPU memory and residency

area preserves GPU residency on the direct path, including stacked-series geometry generation. Fallback rendering still preserves the same visible semantics and handle behavior when a direct GPU path is not available.

Examples

Create a basic filled area plot

x = 0:0.1:1;
area(x, x.^2);

Create stacked area series from a matrix

x = 1:5;
Y = [1 2 1; 2 1 2; 3 2 1; 2 3 2; 1 2 3];
area(x, Y);

Change the baseline and label the series through the handle

x = 0:0.2:2;
h = area(x, sin(x) + 2);
set(h, 'BaseValue', 1, 'DisplayName', 'offset area');
legend;

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

quiver, bar, plot, legend, get, set

Open-source implementation

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

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

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area — Create filled area plots for cumulative totals, stacked series, and MATLAB area workflows.

How area works in RunMat