sliceiso

meshfile=fc_oogmsh.gmsh.buildmesh3d('cylinder3holes',15);
  Th=fc_simesh.siMesh(meshfile);
  u=@(x,y,z) cos(2*x-y-z).*sin(x-2*y+z);
  U=Th.eval(u);

  fc_tools.graphics.monitors.onGrid(2,3,'figures',1:5);
  figure(1)
  P=fc_tools.graphics.PlaneCoefs([0 0 1],[1 -1 1]);
  Th.slicemesh(P)
  hold on
  Th.sliceiso(U,P)
  view(-11,15)

  figure(2)
  P=fc_tools.graphics.PlaneCoefs([0 0 1],[1 -1 1]);
  Th.slicemesh(P)
  hold on
  [~,~,cax,h]=Th.sliceiso(U,P,'isocolorbar',true);
  Th.sliceiso(U,P,'isorange',0,'color','w','Linewidth',2);
  view(-11,15)
  I=~isnan(h);
  set(h(I),'LineWidth',2)
  set(cax,'FontSize',8)

  figure(3)
  P=fc_tools.graphics.PlaneCoefs([0 0 1],[1 -1 1]);
  Th.slicemesh(P)
  hold on
  Th.sliceiso(U,P,'isocolorbar',true,'LineWidth',2,'format','%.3f');
  view(-11,15)

  figure(4)
  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.plotmesh('d',1,'LineWidth',1,'color','k');
  hold on;axis off;axis image;
  Th.slice(u,P,'Facecolor','interp')

  figure(5)
  Th.plotmesh('d',1,'LineWidth',2,'color','k');
  hold on;axis off;axis image;
  Th.slicemesh(P(1:2,:))
  Th.sliceiso(u,P(1:2,:))
  Th.slice(u,P(3,:),'Facecolor','interp')
  Th.sliceiso(u,P(3,:),'color','white')

[fc-oogmsh] Input file : <fc-oogmsh>/geodir/3d/cylinder3holes.geo
[fc-oogmsh] Mesh file <fc-oogmsh>/meshes/cylinder3holes-15.msh [version 2.2] already exists.
  -> Use "force" flag to rebuild if needed.
  Mesh cylinder3holes-15.msh is a 3-dimensional mesh
    Force dimension to 3