https://bjornwikkeling.com/tags/canvas-api/ Recent content in Canvas API on bjørn Hugo en-gb Mon, 04 May 2026 12:00:00 +0200 https://bjornwikkeling.com/posts/2026050401-tack-pics-mark-coordinates-on-images/ Mon, 04 May 2026 12:00:00 +0200 https://bjornwikkeling.com/posts/2026050401-tack-pics-mark-coordinates-on-images/ <p>What started as a Saturday-afternoon utility for placing collision shapes on a sprite turned into <a href = "https://tack.pics" target = "_blank" > <span> tack.pics </span> </a> — a small, free, browser-based tool for marking points and polygon regions on images and exporting them as JSON or YAML. Drop in an image, click out the coordinates, drag bezier curves where you need them, and copy the data straight into your code. Nothing leaves your device.</p>