[Yade-users] [Question #700439]: How to use TW.triangulate() for only part of particles
New question #700439 on Yade: https://answers.launchpad.net/yade/+question/700439 Hi, I'd like to ask that how to export micro-strain[1] for part of the whole packing. There are two groups of particles in my packing, let's say, packing1 and packing2 for storing the ids respectively. I'd like to export micro-strain for particles in packing1. I guess it could be done by using TW.triangulate (i.e., computing regular Delaunay triangulation) for only packing1. Refering to the example code[2], it well demonstrates how to export the micro-strain for the whole packing by using TW.triangulate(), as below: TW.triangulate()#compute regular Delaunay triangulation, don’t construct tesselation TW.computeVolumes() #will silently tesselate the packing, then compute volume of each Voronoi cell I made some attemps such as using TW.triangulate(packing1) or TW.computeVolumes(packing1), but I got the feedback: did not match C++ signature. My question is that can we pass only packing1 to TW.triangulate()? Thanks Leonard [1]https://yade-dev.gitlab.io/trunk/user.html?highlight=paraview#micro-strain [2]https://gitlab.com/yade-dev/trunk/-/blob/master/examples/tesselationwrapper/tesselationWrapper.py -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #700439]: How to use TW.triangulate() for only part of particles
Question #700439 on Yade changed: https://answers.launchpad.net/yade/+question/700439 Status: Open => Answered Karol Brzezinski proposed the following answer: Hi Leonard, I don't know whether you can triangulate for a set of particles. However, you can store the positions and radii of this set in external files. Next, you can compute strains from positions files using defToVtkFromPositions() method [1]. Cheers, Karol [1] https://yade-dem.org/doc/yade.wrapper.html?highlight=deftovtkfrompositions#yade.wrapper.TesselationWrapper.defToVtkFromPositions -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #700439]: How to use TW.triangulate() for only part of particles
Question #700439 on Yade changed: https://answers.launchpad.net/yade/+question/700439 Status: Answered => Open Leonard is still having a problem: Hi Karol, Firstly many thanks for your quick reply. As this defToVtkFromPositions() is new info for me, if I understood correctly, what I need to do is: step1: output a txt file (one sphere per line, with x,y,z,rad separated by spaces). This is clear for me, in this way I can specific the part of particles. step2: pass this file to defToVtkFromPositions(), this function will write local deformations in vtk format from positions file as introduced in[1]. But what is not clear for me is that: there is only one state in the txt file, how can it calculate the microstrain from only one state? As the example code shows[2], it uses defToVtk() which write local deformations in vtk format from states 0 and 1. Thanks Leonard [1] https://yade-dem.org/doc/yade.wrapper.html?highlight=deftovtkfrompositions#yade.wrapper.TesselationWrapper.defToVtkFromPositions [2]https://yade-dev.gitlab.io/trunk/user.html?highlight=paraview#micro-strain -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #700439]: How to use TW.triangulate() for only part of particles
Question #700439 on Yade changed: https://answers.launchpad.net/yade/+question/700439 Status: Open => Answered Karol Brzezinski proposed the following answer: Hi Leonard, the answer is simple. You need to output two txt files, before and after deformation :) step 1: output the first txt file (one sphere per line, with x,y,z,rad separated by spaces). step 2: run simulation. step 3: output the second txt file. step 4: pass the files to defToVtkFromPositions(first_file, second_file, output_vtk_file). Cheers, Karol -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #700439]: How to use TW.triangulate() for only part of particles
Question #700439 on Yade changed: https://answers.launchpad.net/yade/+question/700439 Status: Answered => Solved Leonard confirmed that the question is solved: Thanks Karol Brzezinski, that solved my question. -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp