Robuta

https://developers.weixin.qq.com/miniprogram/en/dev/api/canvas/CanvasContext.setTransform.html CanvasContext.setTransform(number scaleX, number skewX, number skewY, number scaleY, number... the doc for Weixin develoers number scalex scaley https://miniapp.bilibili.com/small-app-doc/api/canvas/CanvasContext.transform CanvasContext.transform(number scaleX, number skewX, number skewY, number scaleY, number... transform number scalex scaley