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lonchinkao / box2d

Automatically exported from code.google.com/p/box2d
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Feature Request: a no-relative-rotation joint #81

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
which make the relative rotation of two bodies unchanged, but has no 
limits on x and y axises.

Original issue reported on code.google.com by Tapir....@gmail.com on 10 Feb 2010 at 4:17

GoogleCodeExporter commented 8 years ago 
IIRC a revolute joint with (0,0) as its "axis" behaves this way.

Original comment by sadwanm...@gmail.com on 24 Mar 2010 at 11:05

GoogleCodeExporter commented 8 years ago 
I believe you meant prismatic joint - yes, it does.

Original comment by chriszca...@gmail.com on 14 Jun 2014 at 9:31

GoogleCodeExporter commented 8 years ago 
Not exactly.

The no-relative-rotation joint is like the "fix rotation" of a body.
But the "fix rotation" is between a body and the world.
The no-relative-rotation joint is between two bodies.

Many it is not very useful in practice.

Original comment by Tapir....@gmail.com on 14 Jun 2014 at 10:35