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C++ TriangleMesh::request_vertex_status方法代码示例

本文整理汇总了C++中TriangleMesh::request_vertex_status方法的典型用法代码示例。如果您正苦于以下问题:C++ TriangleMesh::request_vertex_status方法的具体用法?C++ TriangleMesh::request_vertex_status怎么用?C++ TriangleMesh::request_vertex_status使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在TriangleMesh的用法示例。


在下文中一共展示了TriangleMesh::request_vertex_status方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: remesh

void remesh(const Eigen::MatrixXd &V, const Eigen::MatrixXi &F, const Eigen::VectorXi &M,
            Eigen::MatrixXd &Vout, Eigen::MatrixXi &Fout, Eigen::VectorXi &Mout,
            double e_length) {
  // The boundary vertices.
  double zmin = 1e10;
  double zmax = -1e10;
  for (int i = 0; i < V.rows(); i++) {
    zmin = std::min(zmin, V(i, 2));
    zmax = std::max(zmax, V(i, 2));
  }
  Eigen::VectorXd minV = V.colwise().minCoeff(),
       maxV = V.colwise().maxCoeff();

  // Compute average edge length.
  if (e_length <= 0) {
    e_length = avg_edgeLength(V, F, M);
  }

  // Convert to OpenMesh.
  TriangleMesh tri;
  IGLToOpenMesh(V, F, tri);
  // Do some more setup.
  tri.update_face_normals();
  tri.update_vertex_normals();
  tri.request_vertex_status();
  tri.request_edge_status();
  tri.request_face_status();

  // Check all edges to see if they're protected or not.
  TriangleMesh::EIter e_it;
  for (e_it = tri.edges_begin(); e_it != tri.edges_end(); ++e_it) {
    // Get both vertices.
    TriangleMesh::VHandle v0 = tri.to_vertex_handle(tri.halfedge_handle(*e_it, 0));
    TriangleMesh::VHandle v1 = tri.to_vertex_handle(tri.halfedge_handle(*e_it, 1));
    // See if both are nonoriginal
    if (M(tri.data(v0).getOriginalIndex()) != GLOBAL::nonoriginal_marker &&
        M(tri.data(v1).getOriginalIndex()) != GLOBAL::nonoriginal_marker) {
      tri.data(*e_it).setProtected(true);
    }
    // Also set vertices if they're original.
    if (M(tri.data(v0).getOriginalIndex()) != GLOBAL::nonoriginal_marker) {
      tri.data(v0).setProtected(true);
    }
    if (M(tri.data(v1).getOriginalIndex()) != GLOBAL::nonoriginal_marker) {
      tri.data(v1).setProtected(true);
    }
  }
  
  /*
  // Check for bad vertices.
  for (int i = 0; i < tri.n_vertices(); ++i) {
    TriangleMesh::VertexHandle vv = TriangleMesh::VertexHandle(i);
    const TriangleMesh::Point &pt = tMesh.point(vv);

    // Set statitonary if original marker set.
    if (M(tri.data(vv).getOriginalIndex()) == GLOBAL::original_marker) {
      
    }
  }
  */

  // Then, do the remeshing--but only split long edge, collapse short edges, 
  // and equalize valences.
  IsotropicRemeshing ir(e_length);
  //int types = ISOTROPIC_REMESHING_TYPES::SPLIT_LONG_EDGES |
              //ISOTROPIC_REMESHING_TYPES::COLLAPSE_SHORT_EDGES |
              //ISOTROPIC_REMESHING_TYPES::EQUALIZE_VALENCES |
              //ISOTROPIC_REMESHING_TYPES::AREA_EQUALIZATION;
  ir.setBoundingBox(TriangleMesh::Point(maxV(0), maxV(1), maxV(2)),
                    TriangleMesh::Point(minV(0), minV(1), minV(2)));
  int types = ISOTROPIC_REMESHING_TYPES::EQUALIZE_VALENCES |
      ISOTROPIC_REMESHING_TYPES::AREA_EQUALIZATION;
  ir.remesh(&tri, 1, types);

  // Then, copy it all back.
  Eigen::VectorXi origIdx;
  OpenMeshToIGL(tri, Vout, Fout, origIdx);
  // Set the new markers as well.
  Mout.resize(Vout.rows());
  for (int i = 0; i < Vout.rows(); ++i) {
    // If it doesn't correspond to a previous vertex, it's a "nonoriginal".
    if (origIdx(i) == -1) {
      Mout(i) = GLOBAL::nonoriginal_marker;
    } else {
      // Otherwise, it's the same marker as it was before.
      Mout(i) = M(origIdx(i));
      int oidx = origIdx(i);
      double moved = ( V.row(oidx) - Vout.row(i) ).norm();
      if ( moved > GLOBAL::EPS && M(oidx) != GLOBAL::nonoriginal_marker) {
        printf("point %d(m:%d new:%d) moved by %lf\n", oidx, M(oidx), i, moved);
        Mout(i) = 10;
      }
    }
    int oidx = origIdx(i);
    if (Vout(i, 2) - zmin < 0 || 
        zmax - Vout(i, 2) < 0) {
      printf("point %d(%d) moved out of bounds! by %lf vs %lf,%lf (%le,%le)\n",
             oidx, M(oidx), Vout(i, 2), zmin, zmax,
             Vout(i,2) - zmin, zmax - Vout(i,2));
      exit(1);
//.........这里部分代码省略.........
开发者ID:evouga,项目名称:tiling,代码行数:101,代码来源:Remesh.cpp


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