How to find out the length of the Canvas in units through a script in Unity?

Question

Unity

As far as I know, these squares in the Scene window are called units. To optimize the game for different devices, I need to get the actual value of the Canvas length in units through the script, is this possible?

Answer 1

Well, somewhere at the level of theory - translate screen coordinates into world coordinates. The camera has methods (ScreenPointToWorld). But this will work adequately only for an orthographic camera - as soon as you add depth, you will have to contrive more.

Answer 2

There is a simpler option, which is about canvas for different resolutions. You just need to add a few components that already exist in unity (I don’t remember now, but I can look if you are interested) that themselves adapt the canvas and its contents to different resolutions