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

sgmapts

v0.4.0

Published

SGMap是一个基于二维图象的地图引擎,支持png、svg等格式的地图图片,为兼容室内定位系统,该地图引擎采用厘米为单位定位坐标。 ## 组件安装

Downloads

30

Readme

SGMapts

SGMap是一个基于二维图象的地图引擎,支持png、svg等格式的地图图片,为兼容室内定位系统,该地图引擎采用厘米为单位定位坐标。

组件安装

npm install sgmapts

组件使用

import SGMap from 'sgmapts';

//地图基础数据,以上数据由定位系统定义后,获取即可
const map = {
    mapx:0,
    mapy:0,
    maxx: 7934.569741212021,        //x轴最大值
    maxy: 31306.97293826297,        //y轴最大值
    minx: -54243.67835698258,       //x轴最小值
    miny: -27311.515884528646,      //y轴最小值
    mapurl:'./map.png'              //地图图片路径
    orig_width:5735,                //地图图片原始宽度
    orig_height:1062                //地图图片原始高度
};

//标记,一般为定位对象,如人员,车辆等
let marks=[{
        imgurl:"./location.png",            //定位对象的图片路径,地图引擎中,所有标签暂时默认24x24
        cmx:0.0,                            //厘米为单位的x轴坐标
        cmy:0.0,                            //厘米为单位的y轴坐标
        offsetx:-12,                        //对象图片在地图上显示时需要x轴偏移量
        offsety:-24                         //y轴偏移量
    },{
        imgurl:"./location.png",
        cmx:-54100.0,
        cmy:7100.0,
        offsetx:-12,
        offsety:-24
    }];

//需要显示的区域(以多个点组成的多边形区域)
let regions=[{
    name:"测试区域",                     //区域名称
    color:'red',                        //区域绘图颜色(具体设值见本文档可用参数说明areacolor值)
    active:true,                        //true/false,用于控制区或的选取状态
    regions:[{
        x:-16252.768768985676,              
        y:10385.42723694757,
        z:0
    },{
        x:-6304.249073274543,
        y:8700.14568329231,
        z:0
    },{
        x:-86.42426345508284,
        y:13096.532345001684,
        z:0
    },{
        x:-7299.1010428456575,
        y:20790.20900299308,
        z:0
    },{
        x:-18118.116211931512,
        y:19178.20056036631,
        z:0
    },{
        x:-16252.768768985676,
        y:10385.42723694757,
        z:0
    }]
}];

let tracks = [
{
    "id":"aa",
    "x": 6617.5250259976265,
    "y": 6409.950145409223
},
{
    "id":"bb",
    "x": 7544.57266277629,
    "y": 7012.35978396344
},
{
    "id":"aa",
    "x": 7571.499357620483,
    "y": 4914.312422102203
},
{
    "id":"bb",
    "x": 7340.699116098825,
    "y": 3543.3111757374327
},
{
    "id":"aa",
    "x": 6963.725388280114,
    "y": 3418.674698795181
}];

handlerDraw = () => {
    //重新绘制操作下,需要先清除当前active的区域重新绘
    let regions:any[]=[];
    this.state.regions.forEach( (item , index ) => {
    if(item.active==undefined||item.active==false){
        regions.push(item);
    }
})

    this.setState({editmode:true,regions:regions});
}
....相关变量定义代码略

render(){
const { editmode,map,regions,marks } = this.state;
    return (
        <div >
        <SGMap width="1000" editmode={editmode} height="800" forceFit={false} wheelmode={true} mapjson={map} marks={marks} regions={regions} showOverall={true}
        tracks={tracks}
        onOK={this.onNewregion.bind(this)} 
        onCancel={this.onDrawCancel.bind(this)}
        onpickup={this.onPickup.bind(this)}  />
        <button onClick={this.handlerDraw.bind(this)}>绘制</button>
        </div>
    );
}

可用参数说明

width - 地图显示区域宽度
height - 地图显示区域高度
mapjson - 地图基础信息(见上述示例map对象)
marks - 地图上需要显示的标签(见上述示例代码marks变量)
regions - 多边形区域(见上述示例代码regions变量)
editmode - 默认false,是否进行绘图模式(即自由定义多边形区域)
pickmode - 默认false,是否进行拾取坐标点的模式
areacolor - 区域绘制的颜色样式,可选值有 default(默认红色样式),red,green,blue,允许自定义样式,自定义样式字段如下:
    {
        polygonFillStyle : 'rgba(255,0,0,.2)',          //区域填充颜色
        lineStyle:'red',                                //颜色及点的颜色
        lineWidth:2                                     //线条宽度
    }

可用事件方法

onnewregion - 但editmode为true时,完成多边形区域绘制后,返回区域所有坐标点数据
示例代码如下:
onNewregion = (points) =>{
    console.log(JSON.stringify(points));
}

onpickup - pickmode为true时,拾取的坐标点变化后,返回拾取的坐标点数据
示例代码:
onPickup = (points)=>{
    let p = {imgurl:"./location.png",offsetx:-12,offsety:-24,...points};
    this.state.marks.push(p);
    this.setState({marks:this.state.marks});
    console.log("pickup:"+JSON.stringify(points));
}

代码编译

通过代码库下载至本地后,执行:

//安装支持库
npm install

//运行demo
npm start

//编译组件
npm run build

代码文件:

-src
----index.ts            //地图引擎主文件
----layer.ts            //绘图图层类封装
----index.css           //地图引擎样式表
-example
----index.js            //地图引擎使用示例代码