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 🙏

© 2025 – Pkg Stats / Ryan Hefner

chartlet

v0.2.1

Published

图片布局工具

Readme

chartlet

:whale: 基于canvas实现的小巧的贴图工具

安装

npm i --save chartlet

CDN

https://unpkg.com/chartlet/dist/chartlet.umd.js

基础示例

let cl = new Chartlet({
    backgroundImageURL: '../demo.jpg',
    items: [{
            top: 474,
            left: 1168,
            angle: 30,
            width: 569,
            height: 878,
            url: '../avatar.png'
        },
        {
            top: 1679,
            left: 1168,
            angle: 0,
            width: 569,
            height: 878,
            url: '../avatar.png'
        },
    ]
});
cl.on('loaded', () => {
    const dataURL = cl.toDataURL();
    console.log(dataURL);
})

API

constructor

构造函数参数:

|名称|类型|默认值|说明| |---|---|---|---| |backgroundImageURL|String|-|背景图| |items|Array|[]|贴图组|

items展开

|名称|类型|说明| |---|---|---| |top|Number|与canvas左上角y距离| |left|Number|与canvas左上角x距离| |angle|Number|每个贴图的旋转角度| |width|Number|每个贴图的宽度| |height|Number|每个贴图的高度| |url|String|图片地址|

set

修改设置, 参数同构造函数参数

on

监听方法, 比如监听图片是否加载完成

cl.on('loaded', ()=>{
    // 图片加载完成
    // 可以开始获取效果图的dataURL
})

toDataURL

生成base64

|参数名称|类型|默认值|说明| |---|---|---|---| |type|String|image/png|图片类型| |encoderOptions|Number|0.92|压缩比| |width|Number|背景图的宽度|生成图片的宽度| |height|Number|背景图的高度|生成图片的高度|

cl.on('loaded', ()=>{
    const dataURL = cl.toDataURL();
    console.log(dataURL);
})

getRate

获取canvas的宽/高比

cl.on('loaded', ()=>{
    const dataURL = cl.toDataURL({
        width: 100,
        height: 100 / cl.getRate()
    });
    console.log(dataURL);
})