Mesh modification

Some examples of mesh modification are presented here

• C++

  #include <MRMesh/MRAffineXf3.h>
  #include <MRMesh/MRMesh.h>
  #include <MRMesh/MRMeshRelax.h>
  #include <MRMesh/MRMeshSubdivide.h>
  #include <MRMesh/MRTorus.h>
   
  int main()
  {
      MR::Mesh mesh = MR::makeTorus();
   
      // Relax mesh (5 iterations)
      MR::relax( mesh, {{ .iterations = 5 }} );
   
      // Subdivide mesh
      MR::SubdivideSettings props;
      props.maxDeviationAfterFlip = 0.5f;
      MR::subdivideMesh( mesh, props );
   
      // Rotate mesh
      MR::AffineXf3f rotationXf = MR::AffineXf3f::linear( MR::Matrix3f::rotation( MR::Vector3f::plusZ(), MR::PI_F * 0.5f ) );
      mesh.transform( rotationXf );
   
      return 0;
  }

• Python

  import math
   
  import meshlib.mrmeshpy as mrmeshpy
   
  mesh = mrmeshpy.loadMesh("mesh.stl")
   
  relax_params = mrmeshpy.MeshRelaxParams()
  relax_params.iterations = 5
  mrmeshpy.relax(mesh, relax_params)
   
  props = mrmeshpy.SubdivideSettings()
  props.maxDeviationAfterFlip = 0.5
  mrmeshpy.subdivideMesh(mesh, props)
   
  plus_z = mrmeshpy.Vector3f()
  plus_z.z = 1.0
  rotation_xf = mrmeshpy.AffineXf3f.linear(mrmeshpy.Matrix3f.rotation(plus_z, math.pi * 0.5))
  mesh.transform(rotation_xf)

• C

  #include <MRMeshC/MRMesh.h>
  #include <MRMeshC/MRMeshRelax.h>
  #include <MRMeshC/MRMeshSubdivide.h>
  #include <MRMeshC/MRTorus.h>
   
  #include <math.h>
  #include <stdlib.h>
   
  int main( int argc, char* argv[] )
  {
      MRMakeTorusParameters makeTorusParameters = mrMakeTorusParametersNew();
      MRMesh* mesh = mrMakeTorus( &makeTorusParameters );
   
      // Relax mesh (5 iterations)
      MRRelaxParams relaxParams = mrRelaxParamsNew();
      relaxParams.iterations = 5;
      mrRelax( mesh, &relaxParams, NULL );
   
      // Subdivide mesh
      MRSubdivideSettings subdivideSettings = mrSubdivideSettingsNew();
      subdivideSettings.maxDeviationAfterFlip = 0.5f;
      mrSubdivideMesh( mesh, &subdivideSettings );
   
      // Rotate mesh
      MRVector3f plusZ = mrVector3fPlusZ();
      MRMatrix3f rotMat = mrMatrix3fRotationScalar( &plusZ, M_PI_2 );
      MRAffineXf3f rotXf = mrAffineXf3fLinear( &rotMat );
      mrMeshTransform( mesh, &rotXf, NULL );
   
      mrMeshFree( mesh );
      return EXIT_SUCCESS;
  }