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

@vislite/canvas

v0.1.0

Published

基于VISLite的Canvas画笔开发的绘制方法

Downloads

26

Readme

@vislite/canvas

基于 VISLite 的Canvas画笔开发的绘制方法

如何使用?

创建&初始化

首先,需要进行安装:

npm install --save @vislite/canvas

然后获取即可:

import VISLite from "vislite";
import CanvasJs from "@vislite/canvas";

// https://oi-contrib.github.io/VISLite/#/api/canvas/import
let painter = new VISLite.Canvas(el);

// 创建
let canvasJs = new CanvasJs(painter);

方法

地图块

也就是绘制地图的一个区域的方法,比如我们有一个江苏地图的geoJSON,那么直接:

let map = new VISLite.Mercator(45, [120, 33]);

painter.config({
    strokeStyle: "#eee",
    fillStyle: "pink"
});

for (let i = 0; i < jiangsu.features.length; i++) {
    canvasJs.fullFeature(map, jiangsu.features[i], 350, 200)
}

这样,就可以获得一个江苏地图:

完整代码可以查看: feature.spec.html

上面演示的是fullFeature,其实还有同簇方法fillFeaturestrokeFeature可供选择。

箭头

指定开始和结束位置即可,例如:

canvasJs.arrow([100, 100], [300, 250]);

箭头使用轮廓绘制的,因此如果需要修改颜色的粗细,应该分别修改strokeStylelineWidth

版权

MIT License

Copyright (c) zxl20070701 走一步,再走一步