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#
# Find the native VTK includes and library
#
# This module defines:
#
# VTK_INSTALL_PATH - Where is the installed version of VTK.
# USE_BUILT_VTK - Should a built-from-source version of VTK be used.
#
# VTK_BINARY_PATH - Where is (one of) the binary tree(s).
# USE_INSTALLED_VTK - Should an installed version of VTK be used
#
# USE_VTK_FILE - (internal)
# Full path and location to the UseVTK.cmake file.
# This value changes each time USE_BUILT_VTK or
# USE_INSTALLED_VTK is modified, and only if ONE of
# these setting is set to ON.
#
# If VTK is not found, an error is displayed unless VTK_FIND_QUIETLY
# is on.
#
#
# Look for a binary tree (built from source)
#
FIND_PATH(VTK_BINARY_PATH UseVTK.cmake
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild1]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild2]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild3]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild4]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild5]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild6]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild7]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild8]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild9]
[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild10]
VTKBIN
../VTKBIN
../../VTKBIN
$ENV{HOME}/VTKBIN
VTK-bin
../VTK-bin
../../VTK-bin
$ENV{HOME}/VTK-bin
vtkbin
../vtkbin
../../vtkbin
$ENV{HOME}/vtkbin
VTK-vc
../VTK-vc
../../VTK-vc
$ENV{HOME}/VTK-vc
VTK-nmake
../VTK-nmake
../../VTK-nmake
$ENV{HOME}/VTK-nmake
)
#
# If we found a built tree, USE_BUILT_VTK allows the user to
# use it or not. Defaults to ON.
#
IF (VTK_BINARY_PATH)
SET (USE_BUILT_VTK 1 CACHE BOOL
"Use a built (versus installed) version of VTK. Be sure that VTK_BINARY_PATH is correct.")
ENDIF (VTK_BINARY_PATH)
#
# Look for an installed tree
#
FIND_PATH(VTK_INSTALL_PATH include/vtk/UseVTK.cmake
/usr/local
/usr
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Kitware\\VTK\\Nightly]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Kitware\\VTK\\43]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Kitware\\VTK\\42]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Kitware\\VTK\\41]
[HKEY_LOCAL_MACHINE\\SOFTWARE\\Kitware\\VTK\\40]
)
#
# If we found an installed tree, USE_INSTALLED_VTK allows the user to
# use it or not.
#
# Defaults to OFF if a built tree was found before (see above), ON otherwise.
#
IF (VTK_INSTALL_PATH)
IF (USE_BUILT_VTK)
SET (USE_INSTALLED_VTK 0 CACHE BOOL
"Use an installed (versus built from source) version of VTK. Be sure that VTK_INSTALL_PATH is correct.")
ELSE (USE_BUILT_VTK)
SET (USE_INSTALLED_VTK 1 CACHE BOOL
"Use an installed (versus built from source) version of VTK. Be sure that VTK_INSTALL_PATH is correct.")
ENDIF (USE_BUILT_VTK)
ENDIF (VTK_INSTALL_PATH)
#
# Set the USE_VTK_FILE only if one of USE_BUILT_VTK or USE_INSTALLED_VTK
# is ON.
#
IF (USE_BUILT_VTK)
IF (NOT USE_INSTALLED_VTK)
IF (EXISTS "${VTK_BINARY_PATH}/UseVTK.cmake")
SET (USE_VTK_FILE "${VTK_BINARY_PATH}/UseVTK.cmake")
ENDIF (EXISTS "${VTK_BINARY_PATH}/UseVTK.cmake")
ENDIF (NOT USE_INSTALLED_VTK)
ELSE (USE_BUILT_VTK)
IF (USE_INSTALLED_VTK)
IF (EXISTS "${VTK_INSTALL_PATH}/include/vtk/UseVTK.cmake")
SET (USE_VTK_FILE "${VTK_INSTALL_PATH}/include/vtk/UseVTK.cmake")
ENDIF (EXISTS "${VTK_INSTALL_PATH}/include/vtk/UseVTK.cmake")
ENDIF (USE_INSTALLED_VTK)
ENDIF (USE_BUILT_VTK)
#
# Display a warning if both settings are set to ON.
# Otherwise display a warning if VTK was not found.
#
IF (USE_BUILT_VTK AND USE_INSTALLED_VTK)
MESSAGE ("Warning. Please make sure that only ONE of the USE_INSTALLED_VTK or USE_BUILT_VTK setting is set to ON.")
ELSE (USE_BUILT_VTK AND USE_INSTALLED_VTK)
IF (NOT USE_VTK_FILE)
IF (NOT VTK_FIND_QUIETLY)
MESSAGE ("Warning. VTK might be found on your system as different flavours: installed VTK or built VTK. Please make sure that the VTK_INSTALL_PATH or VTK_BINARY_PATH setting reflects which VTK you are planning to use, then set ONE of the USE_INSTALLED_VTK or USE_BUILT_VTK setting to ON.")
ENDIF (NOT VTK_FIND_QUIETLY)
ENDIF (NOT USE_VTK_FILE)
ENDIF (USE_BUILT_VTK AND USE_INSTALLED_VTK)
# Note:
#
# If you use that module then you are probably relying on VTK to be found
# on your system. Here is the CMake code you might probably want to use to
# work hand-in-hand with that module (in that example CAN_BUILD is a var
# that is set to 0 if your project can not be build):
#
# INCLUDE (${CMAKE_ROOT}/Modules/FindVTK.cmake)
#
# IF (USE_VTK_FILE)
# INCLUDE (${USE_VTK_FILE})
# ELSE (USE_VTK_FILE)
# SET (CAN_BUILD 0)
# ENDIF (USE_VTK_FILE)
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