Initialization of tagdel fields in mesh generation

[corentin-prigent]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 50.31%. Comparing base (1468096) to head (63745ae).
Report is 6 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #309      +/-   ##
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+ Coverage    50.27%   50.31%   +0.04%     
===========================================
  Files          177      177              
  Lines        47853    47857       +4     
  Branches     10355    10352       -3     
===========================================
+ Hits         24059    24081      +22     
+ Misses       16065    16041      -24     
- Partials      7729     7735       +6     

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[taupalosaurus]

For future references:

• current initialisation is wrong, as in the loop indices make no sense. Fix consist in resetting the tag only for vertices belonging to triangles in the list, which is a lot faster than resetting it for all vertices of all triangles.
• some variable names are made more explicit throughout the function.