Wrong output of terminal::geometry

[jcubic]

Issue summary

Geometry returns wrong results

Steps to reproduce

1. Open Fit terminal into 3d image
2. The terminal is outside of the points, because geometry is calculated in the wrong way
3. The size should be {width: 400, height: 250}

[jcubic]

The problem was not the size that was correct, but the padding was missing.