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Quadqs update

Maxence Reberol requested to merge quadqs into master

Improvements for the quadqs mesher (robustness, performance). Much better results on #1273 (closed).

UI changes:

  • update of the option Mesh.QuadqsSizeMethod (to choose how the sizemap is built)
  • new option Mesh.QuadqsTopologyOptimizationMethods (to toggle simple-face remeshing, disk quadrangulation remeshing, cavity remeshing)
  • new option Mesh.QuadqsRemeshingBoldness (to control the "boldness" of the cavity remeshing, from 0 (conservative, no quality decrease) to 1 (remeshing allowed as long as the SICN quality is positive). Linear between both extremities.
  • new button "Experimental > Optimize quad topology" to call the quadqs topology optimization on an existing quad mesh

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