0,nowCutW, nowCutH)
ctx.draw()
that.setData({
nowCutW:nowCutW,
nowCutH:nowCutH,
propor:propor
})
},
重新裁剪回到初始选择图片的页面
// 重新裁剪
againBtn:function(){
var that = this;
var data = that.data
this.setData({
prienFlag:true,
alreay:true
})
const ctx = wx.createCanvasContext('cutImg');
ctx.setGlobalAlpha(0.4)
ctx.drawImage(data.img, 0, 0, data.canvasW, data.canvasH)
ctx.setFillStyle('red')
ctx.fillRect(that.data.cutX 关键词：微信小程序图片选择区域裁剪完成办法