On December 4th, Intel's core exchange officer came to Kop.
the question is: " Why does design the cursor to be asymmetrical?"
The cursor can be divided into umbrella, handle two parts, each are symmetrical, but together on the asymmetry, the two of the central axis is not completely coincide, the umbrella part of the slash angle of 45 degrees, the handle part of the two slashes are 26.57 degrees, so the two central axis has a difference of 4.07 degrees. Put the arrow straight to see it easily, and the arrow's tail bends to the right.
Official micro said: "The reason is very simple: the cursor right arrow of the small short line is horizontal, so as to ensure that the user's visual feeling will not be too tilted, although the visual design of the arrow is not completely symmetrical, but basically ensure visual comfort Oh! "
There is also a beautiful reason. If the handle of the pointer is designed to be centered symmetrical, then the tilt of the handle is 22.5 degrees, and the tan value of 22.5 degrees is about 0.41, which means that when the handle is drawn, each cross-sectional shift of 1 pixel will draw down 2-3 pixels. Early mouse icons were unserifying, just monochrome icons, so the edges of the painted handles would be jagged and hard to see. And designed to 26.57 degrees, tan value is just 0.5, the handle of each cross-section of the fixed to draw 2 pixels down on it, the edge will be better to see .