bumbu/svg-pan-zoom

Touch: Pan and zoom at the same time

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#209 opened on Jul 4, 2016

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help wanted

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Description

Hi,

First of all, great project! Do you plan to implement Pan and Zoom at the same time with touch events? It seems like you can only zoom or pan and not both.

Maybe I can help to contribute if the library is not restricted in anyway.

Contributor guide

Research direction
Implement simultaneous pan and zoom by handling touch events for two fingers: use touchstart, touchmove, touchend. Calculate distance between two fingers for scaling and midpoint for translation. Update the SVG transform accordingly.
Tech stack
javascript
Domain
frontend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptTouch Events
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65