Set position zero in your scenes!

[drees]

For the purpose of simplifing for my students the plots of the activities of the scene objects, I belive it would be helpful to be able to set position 0 in the scenes. Also having a label option for the grid measuring off distances might help with early disscussions of kinematics. Thanks!

[Kilinich]

first question:
scene.moveToOrigo
scene.camera.pos

second :
box with ruler will help

[tatt61880]

I support this suggestion.

first question:
scene.moveToOrigo
scene.camera.pos

second :
box with ruler will help

Yes, box with ruler will help.
But moveToOrigo is not perfect solution for this purpose.

For example, the below scene has a problem.
The box is 2m higher than ground, but it has minus potential energy.


If we can set 0 position (the red line below), the potential energy will become better.
In this case, potential energy = mgh = 1kg * 9.8m/s^s * 2m = 19.6 J