CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Meshing & Mesh Conversion

[snappyHexMesh] surfaceFeatureExtract error- Feature line extraction?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 1, 2019, 13:51
Default surfaceFeatureExtract error- Feature line extraction?
  #1
New Member
 
anu
Join Date: Jun 2019
Posts: 9
Rep Power: 7
anu.raghun is on a distinguished road
Hi everyone,
I'm attempting to run surfaceFeatureExtract on an STL file, but keep running into an error. I'll attach the full readout:
Quote:

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 6
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
Build : 6-e29811f5dff8
Exec : surfaceFeatureExtract
Date : Jul 01 2019
Time : 12:46:02
Host : "MechE519B"
PID : 30206
I/O : uncollated
Case : /home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Reading surfaceFeatureExtractDict

Surface : "deltaPlate.stl"


Feature line extraction is only valid on closed manifold surfaces.
Statistics:
Triangles : 8
Vertices : 8
Bounding Box : (0 -1.38778e-14 -5.55112e-14) (178.205 108.66 100)


Constructing feature set from included angle 120
Selecting edges purely based on geometric tests: no

Initial feature set:
feature points : 8
feature edges : 12
of which
region edges : 6
external edges : 6
internal edges : 0


Final feature set:
points : 8
of which
convex : 2
concave : 0
mixed : 6
non-feature : 0
edges : 12
of which
external edges : 6
internal edges : 0
flat edges : 0
open edges : 6
multiply connected : 0

Writing extendedFeatureEdgeMesh to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate.extendedFeatureEdgeMesh"

Writing extendedEdgeMesh components to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate"
Writing convex feature points to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_convexFeaturePts.obj"
Writing concave feature points to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_concaveFeaturePts.obj"
Writing mixed feature points to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_mixedFeaturePts.obj"
Writing mixed feature point structure to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_mixedFeaturePtsStructure.obj"
Writing external edges to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_externalEdges.obj"
Writing internal edges to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_internalEdges.obj"
Writing flat edges to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_flatEdges.obj"
Writing open edges to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_openEdges.obj"
Writing multiple edges to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_multipleEdges.obj"
Writing region edges to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_regionEdges.obj"
Writing edge directions to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/extendedFeatureEdgeMesh/deltaPlate_edgeDirections.obj"

Writing featureEdgeMesh to "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/triSurface/deltaPlate.eMesh"

Surface : "surface2.nas"


Feature line extraction is only valid on closed manifold surfaces.


--> FOAM FATAL ERROR:
Cannot read "/home/anu/OpenFOAM/anu-6/run/deltaPlate/snappyDelta/constant/triSurface/surface2.nas"

From function bool Foam::triSurface::read(const Foam::fileName&, const Foam::word&, bool)
in file triSurface/triSurface.C at line 304.

FOAM exiting


Is my STL file incompatible, or does it have to do with my surfaceFeatureExtractDict?
I will attach both my STL file and dict file to this post.
I'd appreciate any help! Thanks so much.
anu.raghun is offline   Reply With Quote

Old   July 1, 2019, 22:44
Default
  #2
Senior Member
 
Join Date: Aug 2013
Posts: 407
Rep Power: 16
Antimony is on a distinguished road
Hi,

Assuming it is the same dictionary as the one you posted here Error: Feature line extraction is only valid on closed manifold surfaces?, then it is simply a matter of you removing unnecessary lines in the surfaceFeatureExtractDict.

Always pay attention to the error messages. Here your error message is about the missing file surface.nas. So unless you have and need a surface.nas file, there is no point including this. Remove all entries except the one for your STL file and it should be fine.

Also, since it looks like you found a solution to Error: Feature line extraction is only valid on closed manifold surfaces?, in everyone's best interests, please post your solution. Otherwise someone else running into the same issues will be left scratching their head.

Hope this helps.

Cheers,
Antimony
Antimony is offline   Reply With Quote

Old   July 2, 2019, 11:43
Default
  #3
New Member
 
anu
Join Date: Jun 2019
Posts: 9
Rep Power: 7
anu.raghun is on a distinguished road
Ah, thank you so much! Silly error on my part. And yes, just updating that thread right now.
anu.raghun is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Unknown function type pressureTools Dorian1504 OpenFOAM Post-Processing 23 May 25, 2021 10:24
problem during mpi in server: expected Scalar, found on line 0 the word 'nan' muth OpenFOAM Running, Solving & CFD 3 August 27, 2018 05:18
[OpenFOAM] Annoying issue of automatic "Rescale to Data Range " with paraFoam/paraview 3.12 keepfit ParaView 60 September 18, 2013 04:23
[blockMesh] non-orthogonal faces and incorrect orientation? nennbs OpenFOAM Meshing & Mesh Conversion 7 April 17, 2013 06:42
Problems of Duns Codes! Martin J Main CFD Forum 8 August 15, 2003 00:19


All times are GMT -4. The time now is 17:11.