select_photo.js
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// packageB/pages/AI-test-skin/select_photo/select_photo.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,
gl_skin_img: null,
skin_type: 0,
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
var img = getApp().globalData.skin_img_info;
this.setData({ gl_skin_img: img })
},
//-- 完成选择 --
ok_select: function () {
const th = this;
this.check_num(function () {
let filePath = th.data.gl_skin_img['path'];
app.request.uploadFile("/api/weshop/baidubce/face/uploadImg?uploadPath=faceimg&storeId=" + setting.stoid, {
filePath: th.data.gl_skin_img['path'],
name: "file",
success: function (e) {
if (e.data.code == 0) {
getApp().globalData.face_img = e.data.data.img;
getApp().globalData.face_SourceImg = e.data.data.SourceImg;
let url = "/packageD/pages/AI-test-skin/analyse/analyse"; //跳到分析页
app.goto(url);
} else {
wx.showToast({
title: e.data.msg,
icon: 'none',
duration: 2000
});
};
}
});
})
},
//-- 重新从相册中选择图片 --
show_pai_pop: function () {
var 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;
}
getApp().globalData.skin_img_info = imgArr[0];
th.setData({ gl_skin_img: imgArr[0] })
}
})
},
//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);
}
})
},
//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) {
var ratio = Math.trunc(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",
})
},
})
},
check_num:function (func) {
//判断右没有开AI测肤
getApp().promiseGet("/api/weshop/wx/weappSkin/get/"+setting.stoid,{}).then(rs=>{
if(rs.data.code!=0 || !rs.data.data){
wx.showToast({
title: "未开通测肤功能，请联系商家",
icon: 'none',
duration: 3000
})
}else if(!rs.data.data.skin_num || rs.data.data.skin_num<=0){
wx.showToast({
title: "测肤功能的使用次数已经达到上限，请联系商家",
icon: 'none',
duration: 3000
})
}else{
func();
}
})
}
})