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Posted by Nick Thissen

on 09/18/2020 20:14:52

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You mean an image that changes according to speed/rpm for example? It is possible to do this with dynamic images although a bit tricky and could be hard on performance. In general the steps for example for a RPM gauge would be:
- Have a list of images that correspond to various RPM values, in appropriate steps for example 200-400-600-800-1000-1200-etc.
- Name them all according to their rpm: 200.png, 400.png, 600.png, etc.
- Use a script to round the actual RPM to a multiple of 200 (divide by 200, round down, multiply by 200).
- Let the script return the rounded RPM.
- Apply the script to a dynamic image path.

There are examples for all of these steps in these forums somewhere I think.