I’m working with the arc tool in order to create precise Icons and visualizations, such as gauges and charting.
Most of my designs are precise and related to accurate data.
I find a problem with calculating arc measures when using percents both for ratio and sweep
I think that for precise and pixel perfect sake, the ratio should be (also) in pixels
More important the sweep using percentage seems a useless and unpredictable measuring unit to me.
Why don’t just (also) have start and end degrees instead?
For example, in order to create an arc that starts at the bottom left and ends in the bottom right (a setup used a lot for dashboard and gauges), with the current setting I need to define the start degree position and then calculate the percentage of the end degree in order to create the arc, instead of defining the start and end positions precisely?
Adding a “blast from the past” example of the arc tool (extension) I used to work with, in the good ol’ days when there was only one design tool for UI design the un/infamous Adobe Macromedia Fireworks
Arc tool start / end units in degrees and ratio in pixels
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