[vtkusers] vtkContourFilter precision with vtkPlane

[Henning Meyer]

Hi All,

encountered a strange behaviour of vtkContourFilter. Basically the
quality of the generated mesh dramatically changes, when the scale of
the model is changed (with adapted dims and bounds of the
vtkSampleFunction).
For me, this only happens in combinations of vtkPlane or vtkBox with
vtkImplicitBoolean.

I modified this example a bit:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/ImplicitFunctions/ImplicitSphere

Please have a look a the attached sources - I'm thankful for any hint.

Henning
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cmake_minimum_required(VERSION 2.8)
 
PROJECT(ImplicitSphere)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ImplicitSphere MACOSX_BUNDLE ImplicitSphere)
 
if(VTK_LIBRARIES)
  target_link_libraries(ImplicitSphere ${VTK_LIBRARIES})
else()
  target_link_libraries(ImplicitSphere vtkHybrid )
endif()
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