[ODE] dGeomTransformSetInfo() and dGeomTransformGetInfo()

[Erwin de Vries]

These are pretty wasteful and could easyly be combined.

int cleanup;  // 1 to destroy obj when destroyed
int infomode;  // 1 to put Tx geom in dContactGeom g1

And i'll certainly use this feature. ;-)

Erwin

----- Original Message ----- 
From: "Russ Smith" <russ@q12.org>
To: <ode@q12.org>
Sent: Tuesday, August 06, 2002 05:11
Subject: [ODE] dGeomTransformSetInfo() and dGeomTransformGetInfo()


> 
> i have added the dGeomTransformSetInfo() and dGeomTransformGetInfo()
> functions, to allow the g1/g2 inconsistency with transform geoms to be
> worked around. rest assured this is not an API change, just an API
> addition. to quote from the docs:
> 
>   [These functions] Set and get the "information" mode of geometry
>   transform g. The mode can be 0 or 1. The default mode is 0.
> 
>   With mode 0, when a transform object is collided with another object
>   (using dCollide (tx_geom,other_geom,...)), the g1 field of the
>   dContactGeom structure is set to the geometry object that is
>   encapsulated by the transform object. This value of g1 allows
>   the caller to interrogate the type of the geometry that is
>   transformed, but it does not allow the caller to determine the
>   position in global coordinates or the associated body, as both of
>   these properties are used differently for encapsulated geometry
>   objects.
> 
>   With mode 1, the g1 field of the dContactGeom structure is set to the
>   transform object itself. This makes the object appear just like any
>   other kind of geometry object, as dGeomGetBody() will return the
>   attached body, and dGeomGetPosition() will return the global position.
>   To get the actual type of the encapsulated geometry in this case,
>   dGeomTransformGetGeom() must be used.
> 
> if anyone has a reason to use this new feature i'd appreciate some
> feedback.
> 
> russ.
> 
> -- 
> Russell Smith
> http://www.q12.org
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