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 <mailto: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
<mailto: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
>
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