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anthony-jourdon/surface-tag-point-in-triangle #1

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@anthony-jourdon anthony-jourdon commented Apr 11, 2024

PR for surface tag and point location in triangles

This PR contains:

  • A new function extract_facets_mesh_from_tag() in parse_regions_from_gmsh.py to extract surfaces tagged in gmsh as 'triangles' and write .vtu and .bin files with names based on their tag.
  • A new function point_in_triangle() in point_in_tetra.c accompanied with dot() cross() and norm() functions. The function point_in_triangle() is a point location algorithm to check if for a given point and a given triangle both living in 3-space the point is contained inside the triangle.
  • Two files in data/test_ptatin.geo and data/test_ptatin.msh to test the surface mesh extraction.

@anthony-jourdon
Add a .geo et .msh files with flat layers as regions for ptatin and b…
ed60ad8 
…oundaries tagged for boundary conditions
@anthony-jourdon
Add support to provide facets data, compute the facet cell indices an…
0dcbead 
…d write facets fields
@anthony-jourdon
Add a test case to check the reading of facet data
3cf5545
@anthony-jourdon
Change the default filename in that branch to test_ptatin.msh
e4a621b
@anthony-jourdon
Add conditions to verify that the mesh from gmsh contains facets data…
717337d 
… to keep compatibility with previous version and revert the start of region and boundary tags to 0.
@anthony-jourdon
Modified the geo file to easily change the mesh size
f7558ab
@anthony-jourdon
Removed the facet related code it is not usefull anymore
6eac1ef
@anthony-jourdon
Add the function extract_facets_mesh_from_tag()
e1596a2 
This function extracts the facets tagged in Gmsh and pass them to discretedomain.Mesh to create an individual mesh of all the facets tagged with the same tag.
Then it writes a .vtu and .bin files.
This function is added to the main() of the file with an automatic detection if the user tagged Surface Physical entities in Gmsh
@anthony-jourdon
Add a test to verify that the facet mesh is correctly written and read.
783dc68
@anthony-jourdon
Add a function to locate points in triangles in 3-space.
d0060b9 
Add -lm flag in the README file for the compilation of the executable
@anthony-jourdon
gmsh test file for ptatin
ae9705f
@anthony-jourdon
Name the files based on their GMSH tag number
0d7fe0e
@anthony-jourdon
Remove a useless argument I added earlier while testing
10b18f2
@anthony-jourdon
Delete old and no more usefull test to open the facets mesh
ae7f202
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@anthony-jourdon