Global transformation

[leoschwarz]

Hi

I'm interested in this OpenTabletDriver plugin, but for my use case the grid-based approach didn't work out nicely because of the artifacts it introduces. I have seen you opened #3 which would potentially alleviate my problem, but I wonder if you or others really have tablets that require different scaling factors in different areas of the tablet?

Because a simpler but less general approach is to use the point pairs to fit a single transform for the whole tablet. It's less general, because I'm assuming translation and scaling is enough. I've made a very quick test and put it on https://github.com/leoschwarz/BetterCalibrator/tree/feat-global-transform . For me it's working out fine, but I haven't tried all display modes etc. If you are interested I would port the model fitting to C# at a later time, so it could be integrated into the plugin more easily. In case you want to try it, it's essentially as before, but there's also a Python script that fits the offsets.json point pairs and creates a model.json which should be put in the same folder.

[TheBlueOompaLoompa]

I need gradient for my tablet. It has this weird thing where it drifts near the edges but is fine near the center.