yade-dev team mailing list archive

[Bruno Chareyre <bruno.chareyre@xxxxxxxxxxx>]

Ok, good to hear. I have an idea of what the difference is, we discussed that a lot already.

But still, I'm just curious, is there a reason for not writing :
		
		/#ifdef SCG_SHEAR
			scm->prevNormal=scm->normal;
		#endif/
		
instead of? :
		
/		#ifdef SCG_SHEAR
			if(isNew) scm->prevNormal=normal; 
			else scm->prevNormal=scm->normal;
		#endif
/

Bruno


Václav Šmilauer a écrit :
> It is ok. See SpheresContactGeometry first, where SCG_SHEAR is #defined.
> It permits to use SpheresContactGeometry::updateShear instead of
> SpheresContactGeometry::updateShearForce (think of plasticity and you
> get the difference; in the first case, you have displacement value, then
> compute force, the second case computes force directly, which is not as
> flexible).
>
> You can keep this bug open to serve as discussion for this particular
> feature, if it is not clear.
>
>   


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