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This article mainly introduces the relevant knowledge of "how to use canvasContext.rotate to modify coordinates". The editor shows you the operation process through an actual case. The operation method is simple and fast, and it is practical. I hope this article "how to use canvasContext.rotate to modify coordinates" can help you solve the problem.

CanvasContext.rotate definition

The origin is centered, and the origin can be modified by the translate method. Rotates the current axis clockwise. When rotate is called multiple times, the angle of rotation is superimposed.

The parameter type describes the rotateNumber rotation angle in radians (degrees * Math.PI/180) Degrees range 0,360) const ctx = wx.createCanvasContext ('myCanvas') ctx.strokeRect (100,10,150,100) ctx.rotate (20 * Math.PI / 180) ctx.strokeRect (100,10,150,100) ctx.rotate (20 * Math.PI / 180) ctx.strokeRect (100,10,150,100) ctx.draw () on "how to use canvasContext.rotate to modify coordinates" content is introduced here, thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.

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