renderDensityLayersToCanvas()

function renderDensityLayersToCanvas(
   scene, 
   canvas, 
   options?
): void;

Defined in: packages/core/src/render/canvas/render-heatmap.ts:26

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 (PRD §8.6), 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