照片信息查看

import EXIF from 'exif-js'

http://code.ciaoca.com/javascript/exif-js/ 文档

EXIF.getData(document.getElementById('imgElement'), function(){
  EXIF.getAllTags(this);  全部属性
  EXIF.getTag(this, 'Orientation');  某个属性
});

经纬度

const imgLon = EXIF.getTag(this, 'GPSLongitude')
const imgLat = EXIF.getTag(this, 'GPSLatitude')

//计算出经纬度并保留6为小数
const lon = (imgLon[0] + imgLon[1] / 60 + imgLon[2] / 60 / 60).toFixed(6)
const lat = (imgLat[0] + imgLat[1] / 60 + imgLat[2] / 60 / 60).toFixed(6)

https://blog.itsse.cn/904.html 配合高德定位

2023-1-20 更新

uniapp、小程序使用问题

选择图片的时候 exif（图片信息）就是丢失的，这个是微信的限制后面别看了。折腾了半天才发问题

https://developers.weixin.qq.com/community/develop/doc/000a66bd8bcb28c19dde34e1051400?jumpto=comment&commentid=0002ee5b848ee0e19fde5eb2551c%3Fsource%3Dindexmixflow

var myexif = require('./myexif.js');			
getImage() {
				let _this = this
				uni.chooseImage({
					count: 1,
					sizeType: ['original'],
					sourceType: ['album'],
					success: (res) => {
						console.log(res);
						const filePath = res.tempFilePaths[0];
					
						 _this.setBuffer(filePath)
						
						
					}
				})

			},



			setBuffer(filePath) {
				let _this = this
				uni.getFileSystemManager().readFile({
					filePath,
					success: (res) => {
						console.log(res);
						var r = myexif.handleBinaryFile(res.data);
						
						console.log(_this.imageData );
						console.log(r);
					}
				})
			}

https://ext.dcloud.net.cn/plugin?id=4183
import {getImageData,getFloatLocationByExif}  from './izExif.js'

getImageData(filePath).then(res=>{
						            console.log(res)
						            console.log(getFloatLocationByExif(res.exif))
						        }).catch(e=>{
						            console.log(e)
						        })

WishMeLz

照片信息查看

2023-1-20 更新