VX小程序 实现区域转图片预览

方法一

1、安装插件 wxml2canvas

npm install --save wxml2canvas

2、类型

// 小程序页面
let data={
	list:[{
		type:'wxml',
		class:'.test_center .draw_canvas',
		limit:'.test_center',
		x:0,
		y:0
	}]
}

3、数据结构

let testData=[
		{
			PageIndex:1,
			ImageUrl:"https://minio.23544.com:9010/mk-sys-test/origin-paper/432531489095806/2023-06-26-15-42-38/9d43c15bb1834cacb0a8900b5e45dfb2/1.jpg",
			Height:1680.0,
			Width:1200.0,
			Questions:[
				{"QuestionNum":"1-2","X":140.00000450195313,"Y":515.989620895996,"Width":149.77778,"Height":54.77778,"score":1.00,"totalScore":2.00},
				{"QuestionNum":"1111","X":113.10765335144043,"Y":756.3195006567382,"Width":799.77778,"Height":199.77778,"score":0.0,"totalScore":0.0},
				{"QuestionNum":"2222","X":100.0000025946045,"Y":822.2222792822265,"Width":799.77778,"Height":199.77778,"score":0.0,"totalScore":0.0},
				{"QuestionNum":"12","X":95.9895980078125,"Y":1260.989620895996,"Width":1022.77778,"Height":305.77778,"score":1.00,"totalScore":14.00},
			]
		},
		{
			PageIndex:1,
			ImageUrl:"https://minio.23544.com:9010/mk-sys-test/origin-paper/432531489095806/2023-06-26-15-42-38/9d43c15bb1834cacb0a8900b5e45dfb2/1.jpg",
			Height:1680.0,
			Width:1200.0,
			Questions:[
				{"QuestionNum":"1-2","X":140.00000450195313,"Y":515.989620895996,"Width":149.77778,"Height":54.77778,"score":1.00,"totalScore":2.00},
				{"QuestionNum":"1111","X":113.10765335144043,"Y":756.3195006567382,"Width":799.77778,"Height":199.77778,"score":0.0,"totalScore":0.0},
				{"QuestionNum":"2222","X":100.0000025946045,"Y":822.2222792822265,"Width":799.77778,"Height":199.77778,"score":0.0,"totalScore":0.0},
				{"QuestionNum":"12","X":95.9895980078125,"Y":1260.989620895996,"Width":1022.77778,"Height":305.77778,"score":1.00,"totalScore":14.00},
			]
		}
	]

4、页面引用

方法二

     希望我的愚见能够帮助你哦~，若有不足之处，还望指出，你们有更好的解决方法，欢迎大家在评论区下方留言支持，大家一起相互学习参考呀~