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[Jan Stránský <question253401@xxxxxxxxxxxxxxxxxxxxx>]

Question #253401 on Yade changed:
https://answers.launchpad.net/yade/+question/253401

Jan Stránský proposed the following answer:
Hi Henry,

Block in your example is not Body instance, it is some gts object (actually
list, therefore it has no state). Bodies (some number of facets) are
created by pack.gtsSurface2Facets function. At this moment, you can assign
mass to individual facets. But they are independent. To make them like one
body, use appendClumped instead of just append (see my last email).
However, I've never used clump made of facets, so I can't guarantee that it
will work as you want, but it is worth to try :-)

to summarize:
Block=gts.read(open(mesh+'.gts')) # this creates some gts object, not yet
Yade body
facets = pack.gtsSurface2Facets(Block, wire=True) # creates list of facets,
each facet is actual Yade body
clumpID,clumpMembersIds = O.bodies.appendClumped(someListOfFacets) # add
facets as one clump to the simulation, returns ids of appended bodies
clump = O.bodies[clumpID] # get actual body form its id
clump.state.mass = whatever # now you can operate with the clump

Also, what is your goal of this approach? Do you have only one such mesh
particle and then only spheres? Because there is no implementation of
facet-facet interaction, so two such mesh bodies would not interact with
each other..

cheers
Jan



2014-08-21 16:07 GMT+02:00 Henry <question253401@xxxxxxxxxxxxxxxxxxxxx>:

> Question #253401 on Yade changed:
> https://answers.launchpad.net/yade/+question/253401
>
> Henry posted a new comment:
> Furthermore there are some errors:
>
> Block1.state.mass=1.0e8
> AttributeError: 'list' object has no attribute 'state'
>
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