Hi Marc Thank you for your reply. I had confirmed that the vertices were on the manifold by visualizing the coarse mesh( in .vtk format) and .iges file in gmsh together.
Thanks. Himal. On Tue, Nov 15, 2022 at 11:29 PM Marc Fehling <mafehl...@gmail.com> wrote: > Hi Himal, > > I'm glad it works now with the msh format. > > You can look at the implementation > <https://github.com/dealii/dealii/blob/d9e132cb223dd119b0dda3039249cf336bc7640d/source/opencascade/manifold_lib.cc#L452-L453> > of the "the point (...) is not on the manifold" check and convince yourself > that if you encounter the error, then it is because the point is not on the > manifold within the given tolerance. How did you confirm that the vertices > are on the mesh? I would not try to silence the error by increasing the > tolerance. Usually it indicates that something is wrong with your setup, > and you should investigate the cause of the error. > > Marc > > On Monday, November 14, 2022 at 6:34:05 AM UTC-7 075bme0...@pcampus.edu.np > wrote: > >> Dear Sir, >> As you suggested, I worked on the .msh format. And it WORKED!!. Thank you >> so much. >> [image: >> 0-02-03-6e93bc00f0a4dda1496a4e494c98a47ae70f7a77c613f5fe0f9e37a4b34d06be_4f06409b1db8e8f9.png] >> [image: >> 0-02-03-3af1bb23ee6374e1ce4f6244605cb046b8f125299e7e54f4fe6cc433c8de4b4f_d4ceefb5a560240e.png] >> >> A quick question, while working on 3d meshes, I frequently encounter the >> error " the point(...) is not on the manifold". I know what the error is >> about and I have confirmed the vertices of the coarse mesh are on the >> manifold. However, the error pertains. Are there any other sources that >> this error might have happened? >> Thanks again. >> Himal. >> >> On Sun, Nov 13, 2022 at 1:09 AM Marc Fehling <mafe...@gmail.com> wrote: >> >>> Hi Himal, >>> >>> please double check if you are loading the correct vtk file. Because >>> that line is clearly present in the screenshot you posted. >>> >>> In step-49 we are using the msh file format when working with Gmsh. >>> Maybe you have more success with this format? >>> >>> Marc >>> >>> On Saturday, November 12, 2022 at 11:51:30 AM UTC-7 >>> 075bme0...@pcampus.edu.np wrote: >>> >>>> Thank you for your response. Actually I was trying to learn the code by >>>> testing simple case(i.e a cuboid). Here is another problem: >>>> I made a mesh surf.vtk in gmsh from a step file. When exporting from >>>> gmsh, the vtk version in the file was 2.0. So, I changed it to 3.0 and >>>> still I have got the following error: >>>> [image: Screenshot from 2022-11-11 10-39-03.png] >>>> The surf.vtk file contains following mesh: >>>> [image: Screenshot from 2022-11-11 10-43-01.png] >>>> Thanks! >>>> Himal. >>>> >>>> On Thu, Nov 10, 2022 at 3:05 AM Marc Fehling <mafe...@gmail.com> wrote: >>>> >>>>> Hi Himal, >>>>> >>>>> the vertices of your coarse mesh must be located on the geometry >>>>> provided by the IGES file. >>>>> >>>>> It is hard to tell from that amount of information where exactly your >>>>> error comes from. I advise you to draw a sketch of both your IGES cylinder >>>>> and your coarse mesh. Usually you should find out this way what the error >>>>> message is about. >>>>> >>>>> On a different note: Creating a cylinder out of a cuboid is general >>>>> not a good idea, as your cells near the corner vertices get distorted. I >>>>> would rather advise you to choose a coarse cylinder from our GridGenerator >>>>> namespace >>>>> <https://www.dealii.org/current/doxygen/deal.II/namespaceGridGenerator.html#a5cdda7b4a76d509af7d1a8dc1320ddb0> >>>>> instead. >>>>> >>>>> Marc >>>>> On Sunday, November 6, 2022 at 10:16:19 PM UTC-7 >>>>> 075bme0...@pcampus.edu.np wrote: >>>>> >>>>>> Hello, >>>>>> I am trying to mesh an oxygen gas cylinder(which is part of our >>>>>> project in our University) using step-54. For simplicity, I have >>>>>> generated >>>>>> a coarse mesh(cuboid) using step-1 and prepared .IGS file of a cuboid of >>>>>> same dimension. But , I have encountered following error while running >>>>>> it: >>>>>> [image: Screenshot from 2022-11-07 10-47-49.png] >>>>>> PS: After this error, I have done/tried following things: >>>>>> 1. changed the scale among 1e-3, 1 and 1e+3 >>>>>> 2. increased the tolerance up to 100. >>>>>> ...but the error is still present. >>>>>> Thanks, >>>>>> Himal. >>>>>> >>>>> -- >>>>> The deal.II project is located at http://www.dealii.org/ >>>>> For mailing list/forum options, see >>>>> https://groups.google.com/d/forum/dealii?hl=en >>>>> --- >>>>> You received this message because you are subscribed to a topic in the >>>>> Google Groups "deal.II User Group" group. >>>>> To unsubscribe from this topic, visit >>>>> https://groups.google.com/d/topic/dealii/ZHitiBZDLDw/unsubscribe. >>>>> To unsubscribe from this group and all its topics, send an email to >>>>> dealii+un...@googlegroups.com. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/dealii/2175b1ab-0392-489b-94f8-206d938648fen%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/dealii/2175b1ab-0392-489b-94f8-206d938648fen%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >>> The deal.II project is located at http://www.dealii.org/ >>> For mailing list/forum options, see >>> https://groups.google.com/d/forum/dealii?hl=en >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "deal.II User Group" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/dealii/ZHitiBZDLDw/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> dealii+un...@googlegroups.com. >>> >> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/dealii/a668ec7f-898c-4ac1-a6ca-ebe2431aede3n%40googlegroups.com >>> <https://groups.google.com/d/msgid/dealii/a668ec7f-898c-4ac1-a6ca-ebe2431aede3n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > The deal.II project is located at http://www.dealii.org/ > For mailing list/forum options, see > https://groups.google.com/d/forum/dealii?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "deal.II User Group" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/dealii/ZHitiBZDLDw/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > dealii+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/dealii/37973012-83e9-483f-9b9e-e9ba80ff9b25n%40googlegroups.com > <https://groups.google.com/d/msgid/dealii/37973012-83e9-483f-9b9e-e9ba80ff9b25n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/CA%2BNXOPrP3Wuw6QPVkvqspA0yPgF7CD043tAsD36GJJgbbAmaEw%40mail.gmail.com.
