shoot_notice.js
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/*
* @Author: abson
* @Date: 2022-02-15 10:01:57
* @LastEditTime: 2022-03-02 11:44:11
* @LastEditors: Please set LastEditors
* @Description: 打开koroFileHeader查看配置 进行设置: https://github.com/OBKoro1/koro1FileHeader/wiki/%E9%85%8D%E7%BD%AEet urkl
* @FilePath: \MShopWeApp\packageB\pages\AI-test-skin\shoot_notice\shoot_notice.js
*/
// packageB/pages/AI-test-skin/shoot_notice/shoot_notice.js
const app = getApp();
const request = app.request;
const os = app.globalData;
const setting = os.setting;
const ut = require('../../../../utils/util');
Page({
/**
* 页面的初始数据
*/
data: {
iurl: setting.imghost,
notice_show: "",
skin_type: 0,
cWidth: 0,
cHeight: 0,
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
},
/**
* 生命周期函数--监听页面显示
*/
onShow: function () {
let th = this;
setTimeout(() => {
th.setData({
notice_show: 'none',
})
}, 3000)
},
/**
* 生命周期函数--监听页面隐藏
*/
onHide: function () {
},
/**
* 页面相关事件处理函数--监听用户下拉动作
*/
onPullDownRefresh: function () {
},
/**
* 页面上拉触底事件的处理函数
*/
onReachBottom: function () {
},
/**
* 用户点击右上角分享
*/
onShareAppMessage: function () {
},
//从相册中选择图片
show_pai_pop: function () {
let th = this;
//选择和拍照一张图片
wx.chooseImage({
count: 1,
sizeType: ['original', 'compressed'],
sourceType: ['album', 'camera'],
success(res) {
let imgArr = res.tempFilePaths;
//
if (th.data.skin_type) {
imgArr = res.tempFiles;
}
console.log(imgArr);
getApp().globalData.skin_img_info = imgArr[0];
let url = "/packageD/pages/AI-test-skin/select_photo/select_photo";
app.goto(url);
}
})
},
//选择图片
takePhoto() {
var that = this;
wx.chooseImage({
count: 1,
sizeType: ['compressed'],
sourceType: ['album', 'camera'],
success(res) {
var tempFilePaths = res.tempFilePaths
console.log(tempFilePaths);
console.log(res.tempFiles[0].size / 1024 + 'kb');
var size1 =res.tempFiles[0].size;
var size = res.tempFiles[0].size / 1024; //kb单位
// tempFilePath可以作为img标签的src属性显示图片
var img = tempFilePaths[0];
that.setData({
imagesrc: img,
})
that.imgToMin(img, size,size1); //获取图片后压缩
},
fail(err) {
console.log(err);
}
})
},
//图片转码64
base64(url, type) {
var that = this;
return new Promise((resolve, reject) => {
wx.getFileSystemManager().readFile({
filePath: url, //选择图片返回的相对路径
encoding: 'base64', //编码格式
success: res => {
resolve('data:image/' + type.toLocaleLowerCase() + ';base64,' + res.data)
// console.log(res.data);
// that.doDiscernment(res.data);//提交后台
},
fail: res => reject(res.errMsg)
})
})
},
//缩放图片
imgToMin(img, size,size1) {
var that = this;
//size小于100kb 时 直接转码识别
if (size < 1024) {
getApp().globalData.skin_img_info = {
path:img,
size,
}
let url = "/packageD/pages/AI-test-skin/select_photo/select_photo";
app.goto(url);
// that.base64(img,"jpg");
return;
}
//先获取图片 然后根据长宽 缩小 之后获取图片
wx.getImageInfo({
src: img,
success(res) {
console.log(res.width)
console.log(res.height)
var ratio = size / 1024;
size1 = size1 / ratio;
var canvasWidth = res.width //图片原始长宽
var canvasHeight = res.height
//while (canvasWidth > 375 || canvasHeight > 520){// 保证宽高在400以内
canvasWidth = Math.trunc(canvasWidth / ratio)
canvasHeight = Math.trunc(canvasHeight / ratio)
//ratio++;
//}
that.setData({ canvasWidth: canvasWidth, canvasHeight: canvasHeight })
console.log(canvasWidth)
console.log(canvasHeight)
//绘制图片
var ctx = wx.createCanvasContext('attendCanvasId')
ctx.drawImage(img, 0, 0, canvasWidth, canvasHeight)
ctx.draw(false, setTimeout(function () {
wx.canvasToTempFilePath({
canvasId: 'attendCanvasId',
width: canvasWidth,
height: canvasHeight,
destWidth: canvasWidth,
destHeight: canvasHeight,
fileType: 'jpg',
success: function (res) {
console.log(res.tempFilePath)//最终图片路径
that.setData({
canvasImgUrl: res.tempFilePath
});
getApp().globalData.skin_img_info = {
path:res.tempFilePath,
size:size1
};
let url = "/packageD/pages/AI-test-skin/select_photo/select_photo";
app.goto(url);
},
fail: function (res) {
console.log("缩放图片失败");
console.log(res.errMsg)
wx.hideLoading();
wx.showToast({
title: '识别图片失败',
image: '../../utils/img/wrong.png',
duration: 2000
})
that.setData({
title: "识别失败",
})
}
}, this) //要填写this对象，表示canvas这个对象
}, 1000)) //留一定的时间绘制canvas 否则会报错fail canvas is empty
},
fail: function (res) {
console.log("获取图片失败");
console.log(res.errMsg)
wx.hideLoading();
wx.showToast({
title: '识别图片失败',
image: '../../utils/img/wrong.png',
duration: 2000
})
that.setData({
title: "识别失败",
})
},
})
},
})