<div dir="ltr">Dear Oksana,<div><br></div><div>You do need to generate a volumetric mesh first and then slice it to generate a polygonal mesh. The volumetric mesh needs to interpolate your values in space somehow. This is what Delaunay would give you - it will generate a mesh where each atom is a node of a tetrahedra and the values are interpolated over the tets. Is the interpolation the cause of "<span style="font-size:12.8000001907349px">which do not represent my structure properly"? What do you expect the slice to look like? Maybe you need to project the closest atoms to the slice instead of interpolating?</span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px">Best,</span></div><div><span style="font-size:12.8000001907349px">-berk</span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jul 7, 2015 at 10:39 AM, Oksana <span dir="ltr"><<a href="mailto:oksana_golovnya@mail.ru" target="_blank">oksana_golovnya@mail.ru</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><p class="MsoNormal">Dear community<span lang="EN-US">,</span></p><p class="MsoNormal"><span lang="EN-US">I am trying to visualize array of atoms with their displacement vectors in Paraview. The structure is complicated and cannot be represented by StructuredGrid. The goal is to have slices with surface vectors (displacement) and atoms. I have tried two ways:</span></p><p><span lang="EN-US"><span>1.<span style="font:7.0pt 'Times New Roman'"> </span></span></span><span lang="EN-US">Generate a vtk file. In this case I have a polydata of points and vectors, but I cannot use SurfaceVectors filter in this dataset. I tried Delaunay3D filter to produce a grid, but it produces too many cells, which do not represent my structure properly, and instead of one vector per atom I have some strange distribution.</span></p><p><span lang="EN-US"><span>2.<span style="font:7.0pt 'Times New Roman'"> </span></span></span><span lang="EN-US">Load lammps dump file. In this case after MergeBlocks and Calculator filters I have unstructured grid with points and vectors, but cannot use this vectors in Slice->SurfaceVector pipeline anyway. SurfaceVectors are inactive.</span></p><p class="MsoNormal"><span lang="EN-US">I understand that in the first case I need to generate a grid with each atom inside one cell. However, I do not know how to do it. And in the second I do not understand why SurfaceVectors are inactive on the unstructured grid? I would appreciate any help, explanation or reference how to do it right.</span></p><p class="MsoNormal"><span lang="EN-US">Thanks.</span></p></div>
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