yade-dev team mailing list archive

[Vincent Richefeu <richefeu@xxxxxxxxxxxxxxx>]

Hi Vaclav,

Thanks a lot for explanations. I will write the needed physicalAction 
(s) after.
For the moment, I would simply like to test (with display) two new  
functors:
- the one make interactingGeometry (BssSweptSphereLineSegment) from  
GeometricalModel (BshTube),
- the other make AABB from interactingGeometry.
To 'launch' these functor, I pushed back to the initializers.  
Nevertheless, it seems that initializations
are performed during the first step of calculation. Is it right?

Another questions:
do you think I can add to svn repository my pluggins even if they are  
not yet usable?
(I'm sure they will not interact with the rest)
Is there a rule about that?

Regards,
Vincent

> > * HERE IS THE STORY:
> >
> > Say I want to implement a new geometry for bodies. I code pluggins
> > that I needed (GeometriclModel, InteractingGeometry,Functors,
> > GLDraw*,Preprocessor...) after discussing with Janeck
> >
> > I wanted to make some check on the displaying of this new geometry so
> > I created a new PreProcessor that generates the wanted bodies. In a
> > first stage, the 'lists' rootBody->engines and rootBody->initializers
> > was copy&past from the TetrahedronsTest pre-processor. It worked fine
> > at generation but  crashed during the first step of simulation (!)
> >
> > I decided to clear all engines and initializers...  it crashed during
> > generation!
> >
> > * HERE ARE MY QUESTIONS:
> >
> > Can we have empty 'lists' of engines and initializers without crash
> > (only to make some graphical checks)?
> > If it does not, what are the engines (and initializers) that MUST
> > absolutely be 'defined'?
> Hi, There are no mandatory engines/initializers per se, but some  
> engines
> need PhysicalActions, that must be initialized with
> PhysicalActionContainerInitializer. If you use the debug version and
> have gdb installed, you will get backtrace after crash, which will  
> tell
> you (or us, if you can't make sense of it) what went wrong.
>
> However, if you want just to create a simple simulation for testing, I
> suggest that you use python for that -- see scripts/simple-scene.py  
> for
> an example. For testing display, you can only create the body, without
> any engines, like this:
>
>  b=Body()
>  b.shape=GeometricalModel('VincentGeomModel', 
> {'attribute1':value1,'attribue2':value2})
>  b.mold=InteractingGeometry('VincentInteractingGeom', 
> {'attr1':val1,'attr2',val2})
>  b.phys=PhysicalParameters('BodyMacroParameters',{'se3':[x,y,z, 
> 1,0,0,0]})
>  b.bound=BoundingVolume('AABB')
>  o=Omega()
>  o.bodies.append(b)
>
> You can save that in somefile.py and run "yade-... somefile.py" or you
> can type that to the python console. At this point, you should have  
> your
> body displayed in the 3d view.
>
> Regards, Vaclav
>
>
>
>
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