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103

As pointed out in comments and other answers, pointer trails were originally "intended for" and "especially useful if you [were] using a liquid crystal display (LCD) screen" in Windows 3.1. LCD monitors at the time were mostly passive-matrix, whose typically slower response times meant your cursor didn't have time to get redrawn as it moved across the ...


64

The original purpose of the "mouse trails" feature, according to the Windows 3.1 documentation, was to make the mouse easier to track on the very-high-latency LCD panels used in early laptops, by ensuring that the pointer was drawn in each position for at least a full refresh cycle of the screen. It turns out that it also makes the mouse easier to ...


8

The default Windows cursor (white with black outline) uses the red pixel as its hotspot. The default Mac cursor (black with white outline) uses the topmost pixel of the black arrow as its hotspot. Two down, and one to the right of the red pixel. As far as user intentions go, they are going to expect the cursor to act the same everywhere and not suddenly ...


3

Good question. The general rule of thumb is to show the text cursor when a section of the page is expected to be copied. The text cursor provides visual feedback that the user can highlight text or input text. So it should be displayed when the design calls for the user to interact with text. In your example of the tags text, the user really isn't supposed ...


3

I'm not sure I follow your argument, but to clarify things. Perception Perception is often defined as the conscious appreciation of sensation. Essentially, any input into the brain that hits consciousness (as opposed to your brain sensing that the CO2 in your blood is lower than normal). Experience There are quite a few definitions. The important ones: ...


1

Facebook, tumblr, soup.io and Gerrit and surely several other services use "j" and "k" keys for moving down / up.


1

Something like AutoCAD crosshairs seems to me to be a design which is already well thought out and would work for your situation. You may want to constrain the position of the cursor to specific intervals on the scatter plot. And you could add snapping functionality. I would avoid any situation which requires pixel precise positioning of the cursor.


1

As the W3C page says, the cursor means "help is available". Since it is contextual (it has to be, since it's directly attached to the mouse cursor and therefore is representational of whatever the cursor is pointing at), there are essentially two possibilities: The help is immediately shown along with the cursor (for example in the form of a tool tip), in ...


1

Material Design, being thought primary for Android (or better, for every kind of device, included touch screen ones), needs to let users know what the button status is and which kind of action will it do before they click or hover it (touch devices have not hover effect at all). So every element must have a clear style to being clear at glance, different ...



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