renderHeatmapLayersToCanvas

const renderHeatmapLayersToCanvas: (scene, canvas, options) => void = renderDensityLayersToCanvas;

Defined in: packages/core/src/render/canvas/render-heatmap.ts:74

The original name for renderDensityLayersToCanvas, from when heatmap was the only Canvas-rendered layer. Kept as an alias because it shipped in @pitchkit/core@0.1.0's public API — it paints every density layer, not just heatmaps.

Paints every density-type layer in a Scene (heatmap, positionalHeatmap, hexbin, kde) onto a 2D canvas, ignoring every other layer type — the SVG renderer handles those. Backs the canvas at cssSize x devicePixelRatio physical pixels and scales the drawing context accordingly (docs/architecture.md#responsive-and-multi-device), so dense layers stay crisp on retina displays without every painter needing to know about DPR itself.

Does not attempt to composite with the SVG renderer's output — stacking the resulting canvas with an <svg> in the DOM is a consumer concern (@pitchkit/react's), not core's.

Parameters

Returns

void