mesh generation faulty #7
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Hi,
I'm unable to reproduce your problem, here is the mesh I obtain with
your files :
https://www.aljl.eu/nextcloud/index.php/s/S8XQK4733KjNB43
Which version of gmsh are you using ?
Can you try with the last gmsh version from : http://gmsh.info/#Download
Jonathan
Excerpts from bj1576al's message of juin 15, 2018 8:58 am:
… Hi
Thank you for a great plugin and tutorial. I've followed the tutorial, but using my own case. Everything seems to go fine until it creates an oddly looking mesh. See image below. What am I doing wrong?
I've succesfully (I think) created both a mesh-size grid and shoreline. Adding them to a zip-file attached.
[shoreline2.zip](https://github.com/ccorail/qgis-gmsh/files/2105071/shoreline2.zip)
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#7
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Thank you for your swift reply! I did use the gmsh-included in the Onelab-Windows64 distribution. But now I tried it with the latest stable version 3.0.6 for windows 64 (the application version, not the source code). I now got another result, se image below. But not the same one as you send me (which was as aspected). //Björn
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Hi,
I just tried your file on a windows 7 virtual box with a freshly
downloaded gmsh 3.0.6 and I'm still obtaining the right mesh.
The only changed I've made to your file is on line 44 of mesh3.geo, I
removed the full path to mesh3.dat and replace it by simply "mesh3.dat".
Field[NF].FileName = "E:/OneDrive - Lund University/Artiklar/Derive transport gradients from sediment - Caroline/Wave Model/test/refinedMesh/gmsh/taketwo/mesh3.dat";
becomes
Field[NF].FileName = "mesh3.dat";
Jonathan
Excerpts from bj1576al's message of juin 15, 2018 10:27 am:
… Thank you for your swift reply!
I did use the gmsh-included in the Onelab-Windows64 distribution. But now I tried it with the latest stable version 3.0.6 for windows 64 (the application version, not the source code). I now got another result, se image below. But not the same one as you send me (which was as aspected).
//Björn
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#7 (comment)
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I use win10, but I guess that shouldn' t matter? When I try to modify the geo-file with your modification of removing the path-name I only get an error saying that it can't find the file. Moreover. When I generate the mesh I get an warning message saying that it couldn't orient normal of surface 1. Of any relevance? (see image attached below) I've also tried to generate a mesh with a constant-value mesh-size grid and then the mesh is generated as expected. Thank you for your help! |
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The warning about the orientation is not important.
Can you try this :
1) open gmsh
2) in Tools->Options->General->Advanced click on "Restore default
options"
3) with the menu File->open open mesh3.geo
4) generate the mesh by clicking on "mesh"->"2d"
Excerpts from bj1576al's message of juin 15, 2018 11:09 am:
… I use win10, but I guess that shouldn' t matter?
When I try to modify the geo-file with your modification of removing the path-name I only get an error saying that it can't find the file.
Moreover. When I generate the mesh I get an warning message saying that it couldn't orient normal of surface 1. Of any relevance? (see image attached below)
I've also tried to generate a mesh with a constant-value mesh-size grid and then the mesh is generated as expected.
Thank you for your help!
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#7 (comment)
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That worked! But then, why doesn't it work in qgis? |
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It seems that you have a gmsh settings that alter the mesh generation.
- Open gmsh
- Use the menu Help->Restore All Options to Default Settings
- Use the menu File->Save Options as Default
Normally, it should work in qgis now.
Jonathan
Excerpts from bj1576al's message of juin 15, 2018 11:20 am:
… That worked! But then, why doesn't it work in qgis?
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#7 (comment)
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It still doesn't work on Qgis using Frontal as meshing algorithm. However if I use the Delauny it works in qgis. Björn |
Hi
Thank you for a great plugin and tutorial. I've followed the tutorial, but using my own case. Everything seems to go fine until it creates an oddly looking mesh. See image below. What am I doing wrong?
I've succesfully (I think) created both a mesh-size grid and shoreline. Adding them to a zip-file attached.
shoreline2.zip
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