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libmultiscale/cmake/Modules/FindGMSH.cmake
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FindGMSH.cmake
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#===============================================================================
# @file FindGMSH.cmake
#
# @author Nicolas Richart <nicolas.richart@epfl.ch>
#
# @date creation: Mon Dec 08 2014
# @date last modification: Tue Jan 19 2016
#
# @brief Find gmsh and delacre the add_mesh macro
#
# @section LICENSE
#
# Copyright (©) 2015 EPFL (Ecole Polytechnique Fédérale de Lausanne) Laboratory
# (LSMS - Laboratoire de Simulation en Mécanique des Solides)
#
# Akantu is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with Akantu. If not, see <http://www.gnu.org/licenses/>.
#
#===============================================================================
find_program(GMSH gmsh
DOC "The mesh generetor gmsh")
mark_as_advanced(GMSH)
if (GMSH)
execute_process(COMMAND ${GMSH} --version
ERROR_VARIABLE GMSH_VERSION
ERROR_STRIP_TRAILING_WHITESPACE)
endif()
find_package(PackageHandleStandardArgs)
find_package_handle_standard_args(GMSH
REQUIRED_VARS GMSH
VERSION_VAR GMSH_VERSION)
#===============================================================================
function(ADD_MESH MESH_TARGET GEO_FILE)
if(NOT GMSH_FOUND)
return()
endif()
set(arguments
${MESH_TARGET} ${GEO_FILE}
${ARGN}
)
cmake_parse_arguments(_add_mesh
""
"OUTPUT;DIM;ORDER"
""
${arguments}
)
if(NOT _add_mesh_DIM AND NOT _add_mesh_ORDER)
list(GET _add_mesh_UNPARSED_ARGUMENTS 2 _add_mesh_DIM)
list(GET _add_mesh_UNPARSED_ARGUMENTS 3 _add_mesh_ORDER)
endif()
set(_geo_file ${CMAKE_CURRENT_SOURCE_DIR}/${GEO_FILE})
set(_r_geo_file "${GEO_FILE}")
if(_add_mesh_OUTPUT)
set(_msh_file ${CMAKE_CURRENT_BINARY_DIR}/${_add_mesh_OUTPUT})
set(_r_msh_file "${_add_mesh_OUTPUT}")
else(_add_mesh_OUTPUT)
get_filename_component(_msh_file "${GEO_FILE}" NAME_WE)
set(_r_msh_file "${_msh_file}.msh")
set(_msh_file ${CMAKE_CURRENT_BINARY_DIR}/${_msh_file}.msh)
endif(_add_mesh_OUTPUT)
if(GMSH_VERSION VERSION_LESS 3.0.0)
set(OPTIMIZE -optimize)
endif()
if(EXISTS ${_geo_file})
add_custom_command(
OUTPUT ${_msh_file}
DEPENDS ${_geo_file}
COMMAND ${GMSH}
ARGS -format msh2 -${_add_mesh_DIM} -order ${_add_mesh_ORDER} ${OPTIMIZE} -o ${_msh_file} ${_geo_file} 2>&1 > /dev/null
COMMENT "Generating the ${_add_mesh_DIM}D mesh ${_r_msh_file} (order ${_add_mesh_ORDER}) form the geometry ${_r_geo_file}"
)
add_custom_target(${MESH_TARGET}
DEPENDS ${_msh_file})
set_target_properties(${MESH_TARGET} PROPERTIES RESSOURCES ${_geo_file})
else(EXISTS ${_geo_file})
message(WARNING
"File ${_geo_file} not found for target ${MESH_TARGET}")
endif(EXISTS ${_geo_file})
endfunction()
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