APS Excellence in Physics Education Award
November 2019

Education Prize Logo
Science SPORE Prize
November 2011

NSF Logo
The Open Source Physics Project is supported by NSF DUE-0442581.

Variable angle for coordinate system

Return to the Tracker forum
Login to post to this thread

Mobile coordinate system
2 Posts

I use Tracker for my engineering teaching and I need to have a coordinate system with a mobile origin and a mobile axes. The mouvement of solids are simple when we observe them from a near solid (generally, two solids in contacts) but the second one must be in mouvement to.

The first point is simple : uncheck Fixed Origin in the Coordinate menu and choose a point in the Reference Frame menu.
I try to solve the second point : uncheck Fixed Angle in the Coordinate menu, but no option appears to choose 2 points or a tape measure for example.

Somebody helps me about the option Fixed angle ?

Current Replies - View all
Re: Mobile coordinate sys...   (Douglas Brown - )
Re: Mobile coordinate sys...   (Nicolas MALESYS - )
OSP Projects:
Open Source Physics - EJS Modeling
Physlet Physics
Physlet Quantum Physics
STP Book