slicemesh

meshfile=fc_oogmsh.gmsh.buildmesh3d('cylinder3holes',10);
  Th=fc_simesh.siMesh(meshfile);
  fc_tools.graphics.monitors.onGrid(1,2);
  figure(1)
  P=fc_tools.graphics.PlaneCoefs([0 0 1],[1 -1 1]);
  Th.slicemesh(P)
  hold on;axis equal;
  Th.plotmesh('d',1,'color','k')
  view(-11,15)

  figure(2)
  P=[fc_tools.graphics.PlaneCoefs([0 0 1],[1 0 0]); ...
     fc_tools.graphics.PlaneCoefs([0 0 1],[0 1 0]); ...
     fc_tools.graphics.PlaneCoefs([0 0 1],[0 0 1])];
  Th.slicemesh(P,'color',{'LightGray',[1,0,0],'m'}) % [1,0,0] -> RGB => red
  hold on;axis equal;
  Th.plotmesh('d',1,'color','k')
  view(3)
  fc_tools.graphics.monitors.autoGrid()

[fc-oogmsh] Input file : <fc-oogmsh>/geodir/3d/cylinder3holes.geo
[fc-oogmsh] Mesh file <fc-oogmsh>/meshes/cylinder3holes-10.msh [version 4.1] already exists.
  -> Use "force" flag to rebuild if needed.
  Mesh cylinder3holes-10.msh is a 3-dimensional mesh
    Force dimension to 3