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Rare Earth Juejin Tech Community

Dec 9, 2023 · Frontend Development

Create a Rolex GMT‑MASTER Style Watch Using HTML Canvas

This tutorial walks a front‑end developer through building a fully functional Rolex‑inspired GMT‑MASTER watch with HTML, CSS and JavaScript by dividing the watch into dial, bezel and hand modules, initializing three canvas elements, defining color variables, and implementing drawing functions for the bezel, dial, hour, GMT, minute and second hands.

Canvas DrawingFrontend TutorialHTML Canvas

0 likes · 21 min read

Create a Rolex GMT‑MASTER Style Watch Using HTML Canvas

Xueersi Online School Tech Team

Apr 15, 2022 · Frontend Development

Implementation and Optimization of Lasso Transformations in HTML Canvas for Web‑Based Whiteboard

This article explains the design, mathematical foundation, and performance‑oriented optimization of a lasso tool that enables batch selection, rotation, scaling, and translation of graphics on an HTML Canvas‑based online whiteboard, including matrix‑based transformation, state recording, undo/redo, and experimental results.

HTML CanvasLasso ToolTransformation Matrix

0 likes · 14 min read

Implementation and Optimization of Lasso Transformations in HTML Canvas for Web‑Based Whiteboard