Question #683851 on Yade changed:
https://answers.launchpad.net/yade/+question/683851
Status: Answered => Open
lip is still having a problem:
Hi, Jan
for instance, for two spheres，If the distance between the centers of a
sphere is greater than the sum of the radii of two spheres,
Question #683851 on Yade changed:
https://answers.launchpad.net/yade/+question/683851
Status: Needs information => Open
lip gave more information on the question:
in general
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New question #683851 on Yade:
https://answers.launchpad.net/yade/+question/683851
hello
i want to know the principle of contact detection between polyhedra and
sphere,can you give me some advice?
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Question #683176 on Yade changed:
https://answers.launchpad.net/yade/+question/683176
Status: Needs information => Open
lip gave more information on the question:
> uniform vs. PSD?
i want to use PSD
> create new spheres for it or use existing spheres from larger assemblie
Question #683176 on Yade changed:
https://answers.launchpad.net/yade/+question/683176
lip gave more information on the question:
by the way, the clump means a clump body
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Question #683176 on Yade changed:
https://answers.launchpad.net/yade/+question/683176
Status: Needs information => Open
lip gave more information on the question:
dear Jan:
sorry for wasting your time because of my unclear expression.
i am glad to say that what you gu
Question #683176 on Yade changed:
https://answers.launchpad.net/yade/+question/683176
lip gave more information on the question:
Comment to my first question:
sorry for my misrepresentation, what i mean is not use clump to create a
tetrahedron, Instead, what i want is create a clump
Question #683176 on Yade changed:
https://answers.launchpad.net/yade/+question/683176
lip gave more information on the question:
by the way, when the clump is created, i want to replace sphere which
created by function makeCloud() by the clump, as far as i know, clump is
a tuple object, so it do
New question #683176 on Yade:
https://answers.launchpad.net/yade/+question/683176
hello
i want to use clump to cerat a tetrahedron，can you give me some advice?
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New question #683160 on Yade:
https://answers.launchpad.net/yade/+question/683160
hello
i have defined a function named energysb() to culculate the linear kinetic
energy of polyhedra and sphere seperately when the number of iterations is
k*3000 , where k=1,2,3,..., but it turn out to be
Question #683102 on Yade changed:
https://answers.launchpad.net/yade/+question/683102
Status: Answered => Open
lip is still having a problem:
dear Jan:
thanks for your answer. i noticed that the code below might solve my
problem:
if(b->isAsph
Question #683102 on Yade changed:
https://answers.launchpad.net/yade/+question/683102
lip gave more information on the question:
by the way, i know that function yade._utils.kineticEnergy() can be used to
calculate the total kinetic neergy of all particles, but i want to calculate
the kinetic
New question #683102 on Yade:
https://answers.launchpad.net/yade/+question/683102
hello
i am simulating a particle column collapse, the particle system is
consist of sphere and polyhedra, and i want calculate the energy loss caused
by friction and the kinetic energy, so i need to know
New question #683001 on Yade:
https://answers.launchpad.net/yade/+question/683001
hello
i know that Ig2_Sphere_Polyhedra_ScGeom can calculate the ig between
polyhedra and sphere, if the material of polyhedra is polyhedraMat and sphere
is frictMat, the ip between them can be calculate by
Question #682859 on Yade changed:
https://answers.launchpad.net/yade/+question/682859
Status: Answered => Open
lip is still having a problem:
hello
i am sorry for i did not make my question clear.
maybe you can just give me some advice about how to calculate the contact
normal vec
New question #682857 on Yade:
https://answers.launchpad.net/yade/+question/682857
hello
i want to know how to calculate anisotropy of contact normal vector
between particles, is there any funtion in yade can handle that?if not, can you
give me some advice to help me achieve that in yade?
New question #682859 on Yade:
https://answers.launchpad.net/yade/+question/682859
hello
i want to know how to calculate anisotropy of contact normal vector
between particles, is there any funtion in yade can handle that?if not, can you
give me some advice to help me achieve that in yade?
New question #682835 on Yade:
https://answers.launchpad.net/yade/+question/682835
hello
i want to know how to make a particle invisible while keep interaction with
other particles ,is there any function in yade can achieve that? looking
forward for your answer
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New question #682833 on Yade:
https://answers.launchpad.net/yade/+question/682833
hello:
i am doing a deposit simution contained polyhedra and shpere,particles pile
up freely in a box formed by polyhedra under the action of gravity. below is my
code:
from yade import
Question #682757 on Yade changed:
https://answers.launchpad.net/yade/+question/682757
Status: Needs information => Open
lip gave more information on the question:
dear Bruno:
below is my code:
sp=pack.SpherePack()
sp.makeCloud((0.2,0.2,2),(2.4,2.4,100),psdSizes=[0.1,0.1,0.6,
New question #682757 on Yade:
https://answers.launchpad.net/yade/+question/682757
hello
i want to know the pirnciple of psd in yade.
when i use function makeCloud() to generate shere of two different size use
arguments psdSize and psdCum, i noticed that the distribution of two sphere of
Question #682414 on Yade changed:
https://answers.launchpad.net/yade/+question/682414
Status: Answered => Solved
lip confirmed that the question is solved:
dear Robert:
i have tried function _polyhedra_utils.PrintPolyhedra
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Question #682414 on Yade changed:
https://answers.launchpad.net/yade/+question/682414
Status: Needs information => Open
lip gave more information on the question:
i am sorry for i did not make my question clear. my question is that:
if i created a polyhedra by funct
Question #682414 on Yade changed:
https://answers.launchpad.net/yade/+question/682414
Status: Answered => Open
lip is still having a problem:
dear Robert:
i have tried b.shape, and the problem solved. but i still have a problem
of how to get the vertex of polyhedra for i do not k
New question #682417 on Yade:
https://answers.launchpad.net/yade/+question/682417
hello
i want to know how to get the volume of polyhedra created by function
polyhedra_utils.polyhedra(),i have tried t=a.getVolume(),but an error
appear:AttributeError: 'Body' object has no attribute 'getVolume'
Question #682414 on Yade changed:
https://answers.launchpad.net/yade/+question/682414
Status: Answered => Open
lip is still having a problem:
thank you for your answer.i think it may work, but i have not tried it yet for
i do not know what does the argument shape mean.I just want to
New question #682414 on Yade:
https://answers.launchpad.net/yade/+question/682414
hello
i have created many polyhedra by function polyhedra_utils.fillBox, i want to
know how to obtain the vertex coordinates of any polyhedron.
lookforward for your answer.
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Question #682111 on Yade changed:
https://answers.launchpad.net/yade/+question/682111
Status: Answered => Open
lip is still having a problem:
dear Bruno:
thanks very much for your answer.but what i need is a 3-D coordinate system
with scale values and custom origins, would you ple
Question #682108 on Yade changed:
https://answers.launchpad.net/yade/+question/682108
Status: Answered => Open
lip is still having a problem:
dear Jan:
the run-out distance and height means the maximum moving distance and
stacking height of a particle column after collapse. what i w
New question #682111 on Yade:
https://answers.launchpad.net/yade/+question/682111
hello
i want build a 3-D coordinate system in yade,would you please give me some
advice?
lookforward for your reply
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New question #682108 on Yade:
https://answers.launchpad.net/yade/+question/682108
hello
i am simulating the collapse of particle column,the boundary is formed by
polyhedra, i want to know the final run-out distance and height, i think if the
boundary with scale may help me, but i do not know
New question #681970 on Yade:
https://answers.launchpad.net/yade/+question/681970
hello
i am doing a deposit simulation contained both sphere and polyhedra, and the
numble is large, i want to calculate the volume of sphere and polyhedra
separately, but i do not know how to distinguish
New question #681691 on Yade:
https://answers.launchpad.net/yade/+question/681691
hello
i want to genetate a particle system with particle of two different size,one
large and one samll, is there any function in yade can achieve that? if not,can
you give me some adivice?
look forward for your
New question #681681 on Yade:
https://answers.launchpad.net/yade/+question/681681
hello
i was simulating the collapse of particle collummn, and i want to know how to
yield color nephogram of velocity in yade. i have tried to use function
scalarOnColorScale,but it did not work well.
below is my
Question #681292 on Yade changed:
https://answers.launchpad.net/yade/+question/681292
Status: Answered => Open
lip is still having a problem:
thank you for your answer,i have seen the code and understand the
principle. but i still have a question, is there anyone vertified that
princi
Question #681383 on Yade changed:
https://answers.launchpad.net/yade/+question/681383
Status: Answered => Open
lip is still having a problem:
bleow is the code i copy from polyhedra.cpp:
Real Kna= mat1->young
i have read some code in file examples/polyhedra,all the unit of
New question #681383 on Yade:
https://answers.launchpad.net/yade/+question/681383
hello
i am read the source code of yade and noticed that the normal force between two
polyhedra is calculated by:
normalForce=contactGeom->normal*prop*phys->kn
while kn is calculated by:
contactPhysics->kn =
New question #681361 on Yade:
https://answers.launchpad.net/yade/+question/681361
hello
i want know what does function goReverse() do in yade, such as code below:
bool Ig2_Polyhedra_Polyhedra_ScGeom::goReverse(const shared_ptr& shape1,
const shared_ptr& shape2, const State& state1, const State&
New question #681292 on Yade:
https://answers.launchpad.net/yade/+question/681292
hello
i noticed that that there is a Ig2_Sphere_Polyhedra_ScGeom in yade, i want to
know the principle of contact detection between them, such as how to cualculate
the penetration deepth or pennetration volume
New question #681246 on Yade:
https://answers.launchpad.net/yade/+question/681246
hello
below is the code i am reading:
bool Ig2_Polyhedra_Polyhedra_ScGeom::go(const shared_ptr& shape1, const
shared_ptr& shape2, const State& state1, const State& state2, const
Vector3r& shift2, const bool&
New question #681224 on Yade:
https://answers.launchpad.net/yade/+question/681224
hello
i want know to how to view normal contact stiffness kn in python script or in
the teminal of ubuntu, i have tried print contactPhysics->kn in python script,
but the teminal give me an error:SyntaxError:
New question #681203 on Yade:
https://answers.launchpad.net/yade/+question/681203
hello
i was applying Ig2_Polyhedra_Polyhedra_ScGeom() to simution the deposit of
polyhedra particles, the boundary is formed by fixed polyhedra. But when the
polyhedra particles contacted with the fixed polyhedra
Question #681119 on Yade changed:
https://answers.launchpad.net/yade/+question/681119
Status: Answered => Solved
lip confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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New question #681119 on Yade:
https://answers.launchpad.net/yade/+question/681119
hello
i am reading the source code of yade recent days, and i am quite interesting in
how penetrationVolume is calculate in yade, but i can not find the source code
which defined penetrationVolume and how
Question #681043 on Yade changed:
https://answers.launchpad.net/yade/+question/681043
Status: Solved => Open
lip is still having a problem:
hello,Bruno:
i have installed Kdevelop in my ubuntu, i import the whole trunk file in to
Kdevelop through a button in the left part of the softw
Question #681043 on Yade changed:
https://answers.launchpad.net/yade/+question/681043
Status: Answered => Solved
lip confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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Question #681043 on Yade changed:
https://answers.launchpad.net/yade/+question/681043
Status: Answered => Open
lip is still having a problem:
thank you for your answer, but what i want to kow is what does class Scene do,
look forward for you answer.
by the way, when i read polyhedra_
New question #681043 on Yade:
https://answers.launchpad.net/yade/+question/681043
hello
i am reading the souece code of yade, and a file named scene.cpp, what does
this file do?
look forward for you answer
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New question #681016 on Yade:
https://answers.launchpad.net/yade/+question/681016
hello
i am going to define a new contact geometry and a new contact law, the new
geometry is serve for the new law. i want to know which file in yade is
relavent to my work, is there any examples to guide me how
Question #680895 on Yade changed:
https://answers.launchpad.net/yade/+question/680895
Status: Needs information => Open
lip gave more information on the question:
>is this a question? a comment? something else???
this is a peoblem i do not know how to solve it, in yade, no law law
b
Question #680941 on Yade changed:
https://answers.launchpad.net/yade/+question/680941
Status: Answered => Open
lip is still having a problem:
thank you for your answer, it do helped me a lot.
but i do not think the problem is about stiffness, for the same possion ratio
and young moud
Question #680941 on Yade changed:
https://answers.launchpad.net/yade/+question/680941
lip posted a new comment:
thank you for your answer, it do helped me a lot.
but i do not think the problem is about stiffness, for the same possion ratio
and young moudles
New question #680941 on Yade:
https://answers.launchpad.net/yade/+question/680941
hello
i have used law2_PolyhedraGeom_polyhedraPhys_Volumetric and
Law2_ScGeom_frictPhys_cundallstrack to simulated packing of polyhedra, the
contain is formed by polyhedra, when i used the first law,everything is
Question #680904 on Yade changed:
https://answers.launchpad.net/yade/+question/680904
Description changed to:
hello
i was simulating the contact between sphere and polyhedra, but there is a
problem:when the particle When particles come into contact with the boundary
which formed by polyhedra
New question #680904 on Yade:
https://answers.launchpad.net/yade/+question/680904
hello
i was simulating the contact between sphere and polyhedra, but there is a
problem:when the particle When particles come into contact with the boundary
which formed by polyhedra with fixed position, it It
Question #680895 on Yade changed:
https://answers.launchpad.net/yade/+question/680895
Status: Answered => Open
lip is still having a problem:
thank for your advice, it do helped me in some way.
now that the polyhedraMats is a FricMat, then what should i do to define the
law between betw
New question #680895 on Yade:
https://answers.launchpad.net/yade/+question/680895
hello
i was dong a simulation, the contact involved sphere-sphere, sphere-facet,
sphere-polyhedra, polyhedra-polyhedra, polyhedra-facet.But contact between
polyhedra and facet can only form PolyhedraGeom, which
New question #680888 on Yade:
https://answers.launchpad.net/yade/+question/680888
hello
i want to creat a transparent polyhedra, only the edge of the polyhedra will be
visible, how can i do that?
i would appreciate if you can help me
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New question #680876 on Yade:
https://answers.launchpad.net/yade/+question/680876
hello
i was simulating the interaction between sphere and polyhedra, and the boundary
is consist of facet and wall, when i run the code, an error appear:
FATAL
New question #680857 on Yade:
https://answers.launchpad.net/yade/+question/680857
hello
there is a object yade.wrapper.PolyhedraGeom in the yade documentation, the
explain blow shows geometry of interaction between 2 vector, including
volumetric characteristics. i do not exactly understand
New question #680661 on Yade:
https://answers.launchpad.net/yade/+question/680661
hello
i am going to use yade to simulate effect of particle shape on particle
accumulation morphology, this requires different particle shapes to eventually
have the same stacking patterne , but the shape of the
Question #680295 on Yade changed:
https://answers.launchpad.net/yade/+question/680295
lip gave more information on the question:
by the way, the particles contain rock and soil, the bond strengh are
diffrent between siol and rock, how can i define that?
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New question #680295 on Yade:
https://answers.launchpad.net/yade/+question/680295
hello
i am going to do a experiment about cohesive soil, but i do not know how to set
the mechannical parameters such as shear and normal bond strength between such
kind of particles.
i would appreciate if you
New question #680258 on Yade:
https://answers.launchpad.net/yade/+question/680258
hello
i want to know how to replace particles by thier id. For example, i have
created many sphere particles using makecloud function, but i want to replace
some sphere particles with polyhedra particles.Is there
Question #679264 on Yade changed:
https://answers.launchpad.net/yade/+question/679264
lip gave more information on the question:
hello
there is something wrong in my code,the original code is
makeCloud((0,0,0),(10,10, 100),psdSizes=[2,2,2],psdCumm=(0.5,0.8,1),seed=1)
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New question #679264 on Yade:
https://answers.launchpad.net/yade/+question/679264
hello
i have create many paticles and they deposit in a box by gravity, and one side
of box is consist of wall, after the deposit finished, i delete the wall and
run the script again to let the particle flow. i
New question #679083 on Yade:
https://answers.launchpad.net/yade/+question/679083
hello
i want to know how can i apply viscous force on the polyhedra particles when i
simulate the flow of the particles
i would appreciate if you can help me
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New question #678816 on Yade:
https://answers.launchpad.net/yade/+question/678816
hello
i have created a box by yade.utils.facet, but the particle always get through
the boundary consist of facet and only a part of particle collision with the
facet. i thought it maybe bacouse i set the value of
Question #678807 on Yade changed:
https://answers.launchpad.net/yade/+question/678807
Status: Needs information => Open
lip gave more information on the question:
i want to know the number
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New question #678807 on Yade:
https://answers.launchpad.net/yade/+question/678807
hello
i want to know how to view the size of randomly generated padticles, such as
paticle created by function polyhedra_fillbox.
i would apprecite it if you can help me
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New question #678732 on Yade:
https://answers.launchpad.net/yade/+question/678732
i want to create many polyhedra in a box, but when the size of the box raech to
40, the time cost of particle generated reach to about 20 hours. my computer
have 64 core, the cpu is Xeon, i used -j64 to run my
New question #678654 on Yade:
https://answers.launchpad.net/yade/+question/678654
hello
i want to know whether yade can import terrain file as the boundary.
i would appreciate if you can help me
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New question #678558 on Yade:
https://answers.launchpad.net/yade/+question/678558
hello
i create many polyhedra to make them collison with each ohter, but when the
numble of particles reach to 2000, the simulation become very slow. my computer
have 64 cores ,the cpu is Xeon, 2.4Hz,i want to
New question #678152 on Yade:
https://answers.launchpad.net/yade/+question/678152
hello
i have created a simulation of landsilide using polyhedra, but the contact
detection cost too much if i just use cpu, is there any way apply GPU in that
part? the docmentation yade provided said that GPU
New question #678150 on Yade:
https://answers.launchpad.net/yade/+question/678150
hello
i notice that yade provide the facet and wall boundary, but what if i want to
creat a boundary of any shape ,such as surface boundary?
i would appreciate it if you can help me!
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New question #678126 on Yade:
https://answers.launchpad.net/yade/+question/678126
hello
i notice that yade provide the facet and wall boundary, but what if i want to
creat a boundary of any shape ,such as surface boundary?
i would appreciate it if you can help me!
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New question #678124 on Yade:
https://answers.launchpad.net/yade/+question/678124
hello
i was going to do creat a boundary consist of many walls, the particles
deposited by gravity within the boundary, and then i want to remove one of the
wall to destabilize the accumulation and let the
New question #678125 on Yade:
https://answers.launchpad.net/yade/+question/678125
hello
i was going to do creat a boundary consist of many walls, the particles
deposited by gravity within the boundary, and then i want to remove one of the
wall to destabilize the accumulation and let the
New question #678049 on Yade:
https://answers.launchpad.net/yade/+question/678049
hello
i was going to do creat a boundary consist of many walls, the particles
deposited by gravity within the boundary, and then i want to remove one of the
wall to destabilize the accumulation and let the
Question #677977 on Yade changed:
https://answers.launchpad.net/yade/+question/677977
Status: Answered => Open
lip is still having a problem:
thank you for your advice, it do solve my problem. but i still have a
problem. When translate the facetBox to wall, the polyhedra contact the
w
New question #677977 on Yade:
https://answers.launchpad.net/yade/+question/677977
hello
i have creat a fecetBox with many polyhedra in it and expect them collide with
each other, but when i click the "start" button, the polyhedra just go through
the facetBox. my code is as below:
from yade
New question #677941 on Yade:
https://answers.launchpad.net/yade/+question/677941
hello
i was tried to simulation polyhedra collison by many polyhedra in a box, my
code is as below:
from yade import pack, polyhedra_utils,plot
polyMat = PolyhedraMat()
O.materials.append(polyMat)
Question #677828 on Yade changed:
https://answers.launchpad.net/yade/+question/677828
Status: Answered => Open
lip is still having a problem:
hello
i was tried to simulation polyhedra collison by many polyhedra in a box, my
code is as below:
from yade import pack, polyhedra_utils,p
Question #677828 on Yade changed:
https://answers.launchpad.net/yade/+question/677828
Status: Solved => Open
lip is still having a problem:
Dear Jan,
Thank you for your advice, it do solve my problem. But i still have some
questions.
first, what does the param ratio refer to in funct
Question #677828 on Yade changed:
https://answers.launchpad.net/yade/+question/677828
Status: Answered => Solved
lip confirmed that the question is solved:
Thanks Jan Stránský, that solved my question.
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Question #677831 on Yade changed:
https://answers.launchpad.net/yade/+question/677831
Status: Answered => Solved
lip confirmed that the question is solved:
Thank you very much,this solved my problem
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New question #677831 on Yade:
https://answers.launchpad.net/yade/+question/677831
hello
i have compiled yade with GPU successfully according to the Yade Documentation
chapter 7:Accelerating Yade’s PFV scheme
with GPU. But in section 7.7, it mentioned that the GPU accelerated solver can
be
Question #677787 on Yade changed:
https://answers.launchpad.net/yade/+question/677787
Status: Answered => Solved
lip confirmed that the question is solved:
that solved my problem, thank you
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New question #677787 on Yade:
https://answers.launchpad.net/yade/+question/677787
sir,i want to creat many polyhedra in a box,is there any function like
makeCloud can help me do that?I have tried to use the method that usr makeCloud
function to creat sphere first,and then place the polyhedra in
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