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

w-hc2png

v1.0.27

Published

A package for Highcharts to png by chromium.

Downloads

81

Readme

w-hc2png

A package for Highcharts to png by chromium.

language npm version license npm download npm download jsdelivr download

Documentation

To view documentation or get support, visit docs.

Installation

Using npm(ES6 module):

Note: w-hc2png is mainly dependent on puppeteer, json5 and @hapi/hapi.

npm i w-hc2png

Example for function:

Link: [dev source code]

import WHc2png from './src/WHc2png.mjs'

function genPlotHtml(fp, b64) {
    let h = `
<html>
    <head></head>
    <body>
        <img style="border:1px dashed #ddd;" src="data:image/png;base64, {b64}">
    </body>
</html>
    `
    h = h.replace('{b64}', b64)
    fs.writeFileSync(fp, h, 'utf8')
}

async function testa() {

    let width = 500
    let height = 400
    let scale = 3
    let opt = {

        title: {
            text: 'Logarithmic axis demo'
        },

        xAxis: {
            tickInterval: 1,
            type: 'logarithmic',
            accessibility: {
                rangeDescription: 'Range: 1 to 10'
            }
        },

        yAxis: {
            type: 'logarithmic',
            minorTickInterval: 0.1,
            accessibility: {
                rangeDescription: 'Range: 0.1 to 1000'
            }
        },

        tooltip: {
            headerFormat: '<b>{series.name}</b><br />',
            pointFormat: 'x = {point.x}, y = {point.y}'
        },

        series: [{
            data: [1, 2, 4, 8, 16, 32, 64, 128, 256, 512],
            pointStart: 1
        }]

    }

    let b64 = await WHc2png(width, height, scale, opt)
    // console.log('b64', b64)

    fs.writeFileSync('./test-scla.b64', b64)
    genPlotHtml('./test-scla.html', b64)

    console.log('finish')
}
testa()
    .catch((err) => {
        console.log(err)
    })

async function testb() {

    let width = 500
    let height = 400
    let scale = 3
    let cOpt = `
    let ds = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512]
    for (let i = 0; i < ds.length; i++) {
        ds[i] = Math.sin(ds[i]/360*Math.PI)
    }
    let opt = {

        title: {
            text: 'Logarithmic axis demo'
        },

        xAxis: {
            tickInterval: 1,
            type: 'logarithmic',
            accessibility: {
                rangeDescription: 'Range: 1 to 10'
            }
        },

        yAxis: {
            type: 'logarithmic',
            minorTickInterval: 0.1,
            accessibility: {
                rangeDescription: 'Range: 0.1 to 1000'
            }
        },

        tooltip: {
            headerFormat: '<b>{series.name}</b><br />',
            pointFormat: 'x = {point.x}, y = {point.y}'
        },

        series: [{
            data: ds,
            pointStart: 1
        }]

    }
    `
    let whOpt = {}

    let b64 = await WHc2png(width, height, scale, cOpt, whOpt)
    // console.log('b64', b64)

    fs.writeFileSync('./test-sclb.b64', b64)
    genPlotHtml('./test-sclb.html', b64)

    console.log('finish')
}
testb()
    .catch((err) => {
        console.log(err)
    })

Example for Server:

Link: [dev source code]

import WHc2pngServer from 'w-hc2png/src/WHc2pngServer.mjs'

let opt = {
    port: 9020,
    apiName: 'api',
}
WHc2pngServer(opt)

------------------------

[POST] http://localhost:9020/api

{
    width: 500,
    height: 400,
    scale: 3,
    opt: {
    
        title: {
            text: 'Logarithmic axis demo'
        },
    
        xAxis: {
            tickInterval: 1,
            type: 'logarithmic',
            accessibility: {
                rangeDescription: 'Range: 1 to 10'
            }
        },
    
        yAxis: {
            type: 'logarithmic',
            minorTickInterval: 0.1,
            accessibility: {
                rangeDescription: 'Range: 0.1 to 1000'
            }
        },
    
        tooltip: {
            headerFormat: '<b>{series.name}</b><br />',
            pointFormat: 'x = {point.x}, y = {point.y}'
        },
    
        series: [{
            data: [1, 2, 4, 8, 16, 32, 64, 128, 256, 512],
            pointStart: 1
        }]
    
    }

}