npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

canvas2d-wrapper

v1.7.2

Published

A React Wrapper to use HTML5 canvas with mouse move and zoom abilities.

Downloads

355

Readme

canvas2d-wrapper

A React Wrapper to use HTML5 canvas with mouse move and zoom abilities.

NPM
Reliability Rating Maintainability Rating Security Rating
Duplicated Lines (%) Coverage

Do you want an example app made with this library ? Check out my game Alchemistry on Steam or on itch.io.

Install

npm install --save canvas2d-wrapper

Usage

import React from 'react';

/* eslint-disable no-console */
/* eslint-disable no-magic-numbers */

import { Canvas2D, CanvasImage, Circle, Polygon, Rect } from 'canvas2d-wrapper';
import 'canvas2d-wrapper/dist/index.css';

const elements = [];
for(let i = 0; i < 998; i++) {
  let object = null;
  if(Math.random() > 0.5) {
    object = new Rect({
      id: i,
      x: 500 - Math.round(Math.random() * 1000),
      y: 500 - Math.round(Math.random() * 1000),
      width: 32,
      height: 32,
      fill: (Math.random() > 0.5) ? 'black' : undefined,
      stroke: (Math.random() > 0.5) ? 'black' : undefined,
      draggable: true
    });
  } else {
    object = new Circle({
      id: i,
      x: 500 - Math.round(Math.random() * 1000),
      y: 500 - Math.round(Math.random() * 1000),
      radius: 16,
      fill: (Math.random() > 0.5) ? 'black' : undefined,
      stroke: (Math.random() > 0.5) ? 'black' : undefined
    });
  }

  if(!object.fill && !object.stroke) {
    object.fill = 'green';
  }

  elements.push(object);
}

const points = [];
for(let i = 0; i < 5; i++) {
  points.push({
    x: 500 - Math.round(Math.random() * 1000),
    y: 500 - Math.round(Math.random() * 1000),
  });
}

const polygon = new Polygon({
  id: 'poly',
  points,
  stroke: 'red',
});
elements.push(polygon);

const polygon2 = new Polygon({
  id: 'poly',
  points,
  fill: 'orange',
  zIndex: -1,
});
elements.push(polygon2);


const App = () => {
  return (
    <Canvas2D
      id="MyCanvas"
      width={1200}
      height={700}
      minZoom={0.25}
      maxZoom={4}
      tileSize={1}
      deltaLeft={100}
      deltaTop={100}
      onClick={(e) => {
        console.log('Click event:', e);
      }}
      onRightClick={(e) => {
        console.log('Right click event:', e);
      }}
      onHover={(e) => {
        console.log('Hover event:', e);
      }}
      onElementMoved={(elt, x, y) => {
        console.log('Moved element:', elt, x, y);
      }}
      onWheel={(e) => {
        console.log('Wheel event:', e);
      }}
      onFrame={(e) => {
        return elements;
      }}
      dragObjects={true}
    />
  );
};

export default App;

License

MIT © Elanis