yade-dev team mailing list archive

[Jan Stránský <honzik.stransky@xxxxxxxxx>]

Hi Bruno,

I expected that materials in Ip2_... would be already ordered, but they are
not. I didn't have time to study why. Most likely there is some better way
to do it, I just gave a working solution for Behzad's urgent question..

I checked goReverse some days ago and if I remember correctly, it is used
only in Ig2 functors.

Behzad's situation (combining two different materials) is not very common
in Yade. I used something for combining FrictMat and CpmMat into FrictPhys,
but CpmMat is considered there as its base, FrictMat, so as a result two
FrictMats are combined. Maybe it would be good to investigate the problem
more in detail and at least for future occurrences propose more clean way.

cheers
Jan



2015-02-21 14:15 GMT+01:00 Bruno Chareyre <bruno.chareyre@xxxxxxxxxxxxxxx>:

> Hi Jan,
> Do you think that goReverse cannot solve the problem? I would expect that
> your typechecking is already done by dispatcher. Is goReverse called in one
> of the cases?
> I'm asking that because I'm not really sure if goReverse works as
> expected. If not we better remove it.
> Cheers.
> Bruno
>
> On Saturday, February 21, 2015 00:21 CET, Jan Stránský <
> question261724@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
> > Question #261724 on Yade changed:
> > https://answers.launchpad.net/yade/+question/261724
> >
> > Jan Stránský proposed the following answer:
> > >
> > >
> > > Look, I don't get what you're doing by:
> > >
> > >
> > > if 0: # works for both 0 and 1
> > > s1=utils.sphere([0.0,0.0,0.0],0.01,fixed=True,material=Mat2)
>
> > > s2=utils.sphere([0.0,0.0,2.0e-2],0.01,fixed=False,material=Mat1)
> > > else:
> > > s1=utils.sphere([0.0,0.0,0.0],0.01,fixed=True,material=Mat1)
>
> > > s2=utils.sphere([0.0,0.0,2.0e-2],0.01,fixed=False,material=Mat2)
> > >
> > >
> > > But if you run the file with
> > >
> > > s1=utils.sphere([0.0,0.0,0.0],0.01,fixed=True,material=Mat2)
>
> > > s2=utils.sphere([0.0,0.0,2.0e-2],0.01,fixed=False,material=Mat1)
> > >
> > >
> > > it works!
> > > And if you change it to:
> > >
> > > s1=utils.sphere([0.0,0.0,0.0],0.01,fixed=True,material=Mat1)
>
> > > s2=utils.sphere([0.0,0.0,2.0e-2],0.01,fixed=False,material=Mat2)
> > >
> > > It does not!
> > >
> >
> > my if else is just putting your two version of s1= s2= to one file for
> easy
> > change of them
> >
> > sorry, it does not work for your original files, I tried some
> modifications
> > and it was the effect of undo/redo that I had the impression.
> >
> > I you modify your .cpp file, specifically
> >
> >   FrictMat* mat1 = YADE_CAST<FrictMat*>(b1.get());
> >   CohBurgersMat* mat2 = YADE_CAST<CohBurgersMat*>(b2.get());
> >
> > to
> >
> >   int i1 = b1->getClassIndex(); // get actual material index of b1
>
> >   int i2 = b2->getClassIndex(); // get actual material index of b2
>
> >   int cbmi = CohBurgersMat::getClassIndexStatic();  // get index of
> > CohBurgersMat
> >   FrictMat* mat1;
> >   CohBurgersMat* mat2;
> >   if (i2 == cbmi) { // b2 is CohburgersMat and b1 is FrictMat
> >   mat1 = dynamic_cast<FrictMat*>(b1.get());
> >   mat2 = dynamic_cast<CohBurgersMat*>(b2.get());
> >   } else if (i1 == cbmi) { // b1 is CohburgersMat and b2 is FrictMat
> >   mat1 = dynamic_cast<FrictMat*>(b2.get());
> >   mat2 = dynamic_cast<CohBurgersMat*>(b1.get());
> >   } else { // should not happen, but to be sure..
> >   LOG_FATAL("TODO");
> >   }
> >
> > it should work. If not, let me know.
> > Basically you check the types of material instances and switch materials
> if
> > needed
> > Cheers
> > Jan
> >
> > --
> > You received this question notification because you are a member of
> > yade-users, which is an answer contact for Yade.
> >
> > _______________________________________________
> > Mailing list: https://launchpad.net/~yade-users
> > Post to     : yade-users@xxxxxxxxxxxxxxxxxxx
> > Unsubscribe : https://launchpad.net/~yade-users
> > More help   : https://help.launchpad.net/ListHelp
>
>
>
>
>
>
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~yade-dev
> Post to     : yade-dev@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~yade-dev
> More help   : https://help.launchpad.net/ListHelp
>