In the Facet.cpp I found the following comment. Maybe this rings a bell
for somebody?
void Facet::postLoad(Facet&)
{
// if this fails, it means someone did vertices push_back, but they are
resized to 3 at Facet initialization already
// in the future, a fixed-size array should be used instead of
vector<Vector3r> for vertices
// this is prevented by yade::serialization now IIRC
if(vertices.size()!=3){ throw runtime_error(("Facet must have exactly 3
vertices (not "+boost::lexical_cast<string>(vertices.size())+")").c_str()); }
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https://bugs.launchpad.net/bugs/1796883
Title:
STL import breaks serialization; O.load; Facet must have exactly 3
vertices (not 6)
Status in Yade:
New
Bug description:
Ubuntu 16.04 in virtual machine on windows host
affects yade package and yadedaily 2018.02b-201447edfd~xenial
Hi,
there is a problem when you import an stl file to your simulation, save the
simulation via O.save and O.load afterwards.
You will get a
RuntimeError: Facet must have exactly 3 vertices (not 6)
Here is the example (stl file from some example is attached, I tried
different stls):
#!/usr/bin/python
# -*- coding: utf-8 -*-
from yade import ymport
O.engines=[
ForceResetter(),
InsertionSortCollider([Bo1_Sphere_Aabb()]),
InteractionLoop(
[Ig2_Sphere_Sphere_ScGeom()], # collision geometry
[Ip2_FrictMat_FrictMat_FrictPhys()], # collision "physics"
[Law2_ScGeom_FrictPhys_CundallStrack()] # contact law -- apply
forces
),
# Apply gravity force to particles. damping: numerical dissipation of
energy.
NewtonIntegrator(gravity=(0,0,-9.81),damping=0.1)
]
O.save('before.xml.bz2')
O.bodies.append(ymport.stl('baraban.stl'))
O.save('after.xml.bz2')
O.load('before.xml.bz2')
print "loaded before successfully"
O.load('after.xml.bz2')
print "loaded after successfully"
Cheers Alex
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