>>12653780To emphasize the difference between drawing from imagination and visual reasoning in maths/phys, I'll draw a comparison on this anon's post.
>see the object in my mind and move my hand carefully to translate the proportions to the canvas I am drawing onThis is partly a motor skill (of hand-eye coordination, or simply fine motor control).
In visual reasoning you almost never leave your mind, firstly because it's too complex or impossible to translate at an adequate rate (higher dimensions, transformations etc.). Secondly, you don't need some particular picture exactly, it's easier to pass the necessary parameters for someone else to reproduce in an equivalent manner.
>I see the image as 80-90% in that it begins to fade and I must refresh it constantly to maintain it.Instead of having it all in memory at the same time, you simply consider what details interest you at the moment, and let the rest be whatever's convenient. You can forget the exact shape of your picture, if you remember the important details (usually concrete and given in an exercise or a construction/definition).
>my implicit knowledge will refresh and sharpen the image to be closer to how my eyes would have actually seen itThe act of considering or reasoning about some object doesn't need have anything to do with actually seeing it with your eyes (sometimes it may even be impossisble to see it).
