KooFE Frontend Team
Nov 28, 2021 · Frontend Development
How Konva.js Uses Random Colors for Precise Canvas Hit Detection
Konva.js detects whether a point lies inside a shape by assigning each shape a unique random color key, rendering a hidden hitCanvas with these colors, and then reading the pixel color at the click position to identify the corresponding shape, supporting up to 16.7 million objects.
JavaScriptKonva.jscanvas
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