Hi Guys, I am trying to import a 3D surface mesh of a ship using mesh = Mesh('barge.xml') but it is imported as a 2D file. I also tried in the .xdmf format mesh = Mesh() with XDMFFile("barge_fenics.xdmf") as infile: infile.read(mesh) But it also results in the same issue I created this .x…

when I added geometry <Geometry GeometryType="XYZ"> to the xdmf file, I am getting error saying *** ------------------------------------------------------------------------- *** DOLFIN encountered an error. If you are not able to resolve this issue *** using the information listed below, you can a…

I did run the code meshio-convert barge.xml barge.xdmf -p -z It outputted two files .xdmf and .h5 When I ran the above code [image] ckesanapalli: mesh = Mesh() with XDMFFile("barge_fenics.xdmf") as infile: infile.read(mesh) it still returning a 2D mesh. But what I need is a 3D surfa…

Even without pruning, the mesh is still 2D flattened mesh.

In xdmf or when using it in dolfin?

In the dolfin, it is reading to as 2D mesh but in .xdmf is 3D mesh. [Screenshot from 2020-03-16 15-17-56] it is reading it as a 2D mesh with or without pruning. But the original mesh is a 3D surface mesh and I want it to read as a 3D mesh. [image]

Could you print mesh.topology().dim() and mesh.geometry().dim()? I do not have any issue loading a 3D mesh in 2D (also using a second order geometry). <Xdmf Version="3.0"><Domain><Grid Name="Grid"><Information Name="Information" Value="0"> <![CDATA[<main />]]> </Information><Geometry GeometryType=…

mesh = Mesh() with XDMFFile("barge.xdmf") as infile: infile.read(mesh) mesh2 = Mesh('barge.xml') print(mesh.geometry().dim(), mesh.topology().dim()) print(mesh2.geometry().dim(), mesh2.topology().dim()) Output 2 2 2 2

Then you are not writing your XML/XDMF-files correctly. For instance, what is in the corresponding: </Information><Geometry GeometryType="XYZ"><DataItem DataType="Float" Dimensions="23 3" Format="XML" Precision="8"> Also, what happens if you read in the file I sent you?

For your file I am getting 3, 2 output.

Issue: A 3D mesh is being imported as 2D mesh

mesh

dokken March 16, 2020, 7:49pm 2

You Need to prune the z-coordinate. See for instance Converting simple 2D mesh from gmsh to dolfin

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Issue: A 3D mesh is being imported as 2D mesh

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