Update Getting started README

[ebadkamil]

Update the getting started readme since Nexus File Layout tab does not exist in latest version.

[mattclarke]

What are these images? Are they supposed to be empty files?

[ebadkamil]

I updated the screenshots too with the latest ones that I took today.

[codecov-io]

Codecov Report

Merging #846 (b2bed05) into main (da9b09b) will not change coverage.
The diff coverage is n/a.

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  Lines        4535     4535           
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  Hits         3847     3847           
  Misses        688      688           

[ebadkamil]

When we set translation to +2 in z direction (0, 0, 1) why the sample is deliberately moved to 2m in -ve z direction?

nexus-constructor/nexus_constructor/model/transformation.py

Line 101 in b5246e0

transform.setTranslation(self.vector.normalized() * -1 * self.ui_value)

Does it have something to do with the direction of beam? @kmurica

[kmurica]

When we set translation to +2 in z direction (0, 0, 1) why the sample is deliberately moved to 2m in -ve z direction?

nexus-constructor/nexus_constructor/model/transformation.py

Line 101 in b5246e0

transform.setTranslation(self.vector.normalized() * -1 * self.ui_value)

Does it have something to do with the direction of beam? @kmurica

Just to document it here: the passive transformation is actually moving the coordinate system and not the object. In that case, moving the origo 2 units in (0, 0, 1) direction, would redefine all objects' z-coordinate by -2.

[kmurica]

LGTM.