小程序签字-阿里云

微信小程序canvas手写签字

<view style="width: 90%;height: 260px;background: #f5f5f5;margin: auto;"> <canvas type="2d" id="myCanvas" style="width: 100%; height: 100%;" ...

微信小程序 Canvas 签字 #95

最近迫于签字结果返回太慢，所以需要把旋转图片由原先后端处理改为前端处理，查阅文档，研究一番，发现小程序上旋转，主要是通过canvas的translate、rotate完成。Canvas坐标系统，由上图可得，Canvas 2D 环境中坐标系统和 Web 的坐标系统是一致的，有以下几个特点...

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