Turn gauge arc into gradient

Processing Electronics (Arduino, etc.)
13

There are several approaches to this problem. Some include:

  1. draw many tiny arc segments to create a gradient (solution from @Ov3rM1nD above)
  2. create a closed PShape in the shape of an arc and fill with a gradient (e.g. a PShader)
  3. draw a full gradient image, then draw a single arc as a mask and apply to “cut-out” your gradient.

For examples and past discussion of the mask-based approach, see:

6CQTXN3U84RI.gif650×508 63 KB

There is also a related library:

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