Zoom | BestHub

Rare Earth Juejin Tech Community

Apr 8, 2024 · Frontend Development

Step-by-Step Guide to Building a Canvas-Based Image Annotation Tool with Zoom, Pan, Edit, and Rotate

This tutorial walks you through creating a full‑featured image annotation tool using HTML5 Canvas, covering image rendering, mouse‑wheel zoom, viewport panning, rectangle drawing, selection, drag‑move, size adjustment, and rotation with detailed JavaScript code examples.

Image AnnotationJavaScriptRotation

0 likes · 30 min read

Step-by-Step Guide to Building a Canvas-Based Image Annotation Tool with Zoom, Pan, Edit, and Rotate

New Oriental Technology

Nov 17, 2020 · Frontend Development

Solving Double-Tap Zoom Issues in Touch Devices

This article explores the challenges and solutions for implementing double-tap zoom functionality in touch-enabled devices, addressing common problems with existing methods and proposing a mathematical approach to achieve accurate scaling and panning.

Touch EventsUI DevelopmentZoom

0 likes · 9 min read

Solving Double-Tap Zoom Issues in Touch Devices

Python Programming Learning Circle

Jun 10, 2020 · Fundamentals

Creating Inset Zoomed Plots in Matplotlib for Detailed Comparison

This tutorial explains how to use Python's Matplotlib library to embed a zoomed inset subplot, configure its size and position, plot the same data inside it, set custom axis limits, and connect the inset to the main figure with visual cues.

Data VisualizationInset PlotMatplotlib

0 likes · 8 min read

Creating Inset Zoomed Plots in Matplotlib for Detailed Comparison