Relative width of ballpoint might need calibration

[ghost]

This is perhaps a problem with the renderer this project uses. When comparing the relative width of the ballpoint pen and the fineliner, one finds that the fineliner (which, for the same thickness setting, is wider than the ballpoint at average pressure) is rendered as thiner than than the ballpoint. This can be seen in the attached picture, comparing Remarkable's renderer (which naturally agrees with what is displayed in the screen) and the renderer used by remapy:

The first two lines show the problem with relative thickness. The ballpoint at the highest pressure is also rendered with a larger width than what is displayed by the tablet, so perhaps one would benefit from reducing the overall width of the ballpoint render.

[peerdavid]

A custom-written renderer is used by RemaPy and can be found in model/render.py. Feel free to create a PR with an improved version :) Any help is welcome.

David