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lasreader_las.hpp file not found #6728

Closed mrtgenet closed 2 years ago

mrtgenet commented 2 years ago

Hello :)

Issue Details

I can't manage to compile the simple read las cgal example, I keep having the following issue

/usr/local/include/CGAL/IO/read_las_points.h:48: error: 'lasreader_las.hpp' file not found In file included from XXX.cpp:32: In file included from /usr/local/include/CGAL/IO/read_points.h:23: /usr/local/include/CGAL/IO/read_las_points.h:48:10: fatal error: 'lasreader_las.hpp' file not found

include 

     ^~~~~~~~~~~~~~~~~~~

LASlib and LAZlib are installed (in /usr/local/include), and the library should be linked (see below)

Source Code

In my CMakeLists.txt, I have the following lines for LASlib:

add_definitions(-DCGAL_LINKED_WITH_LASLIB)

[...]

find_package(LASLIB REQUIRED)
if(LASLIB_FOUND AND NOT TARGET CGAL::LASLIB_support)
  add_library(CGAL::LASLIB_support INTERFACE IMPORTED)
  set_target_properties(CGAL::LASLIB_support PROPERTIES
    INTERFACE_COMPILE_DEFINITIONS "CGAL_LINKED_WITH_LASLIB"
    INTERFACE_INCLUDE_DIRECTORIES "${LASLIB_INCLUDE_DIR};${LASZIP_INCLUDE_DIR}"
    INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${LASLIB_INCLUDE_DIR};${LASZIP_INCLUDE_DIR}"
    INTERFACE_LINK_LIBRARIES "${LASLIB_LIBRARIES}")
endif()

[...]

target_link_libraries(
  read_las PUBLIC xxx CGAL::LASLIB_support)

Environment

Thanks for any help I'm really lost now. Cheers !

mrtgenet commented 2 years ago

Here is the CMakeOutput.log:

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lrineau commented 2 years ago

In my CMakeLists.txt, I have the following lines for LASlib:

add_definitions(-DCGAL_LINKED_WITH_LASLIB)

[...]

find_package(LASLIB REQUIRED)
if(LASLIB_FOUND AND NOT TARGET CGAL::LASLIB_support)
  add_library(CGAL::LASLIB_support INTERFACE IMPORTED)
  set_target_properties(CGAL::LASLIB_support PROPERTIES
    INTERFACE_COMPILE_DEFINITIONS "CGAL_LINKED_WITH_LASLIB"
    INTERFACE_INCLUDE_DIRECTORIES "${LASLIB_INCLUDE_DIR};${LASZIP_INCLUDE_DIR}"
    INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${LASLIB_INCLUDE_DIR};${LASZIP_INCLUDE_DIR}"
    INTERFACE_LINK_LIBRARIES "${LASLIB_LIBRARIES}")
endif()

Then, what are the values of those variables LASLIB_INCLUDE_DIR, LASZIP_INCLUDE_DIR, and LASLIB_LIBRARIES? Do you have LASLIB_FOUND equal to TRUE, by the way?

You can add commands like message(STATUS "LASLIB_FOUND: ${LASLIB_FOUND}"), and so on, to find out.

mrtgenet commented 2 years ago

Here is the output:

-- LASLIB_FOUND: TRUE -- LASLIB_INCLUDE_DIR: /usr/local/include/LASlib -- LASZIP_INCLUDE_DIR: /usr/local/include/LASzip -- LASLIB_LIBRARIES: /usr/local/lib/liblas.so

The paths are the actual correct places where my libraries are installed, notably I have /usr/local/include/LASlib/lasreader_las.hpp

lrineau commented 2 years ago

Everything seems in order. Would you mind sharing the full CMakeLists.txt. Maybe I can point out what got wrong.

mrtgenet commented 2 years ago

Indeed, that is why I feel kind of lost.

Below is the full CMakeLists.txt:

project(My_project)

cmake_minimum_required(VERSION 3.1...3.23)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

if(NOT POLICY CMP0070 AND POLICY CMP0053)
  # Only set CMP0053 to OLD with CMake<3.10, otherwise there is a warning.
  cmake_policy(SET CMP0053 OLD)
endif()
if(POLICY CMP0071)
  cmake_policy(SET CMP0071 NEW)
endif()

# Find includes in corresponding build directories
set(CMAKE_INCLUDE_CURRENT_DIR ON)
# Instruct CMake to run moc automatically when needed.
set(CMAKE_AUTOMOC ON)
################################################################################
add_definitions("-Wall -Wextra")
set(CMAKE_CXX_STANDARD 17)

add_definitions("-g") # for profilling with vtune
add_link_options("-g")

add_definitions("-DCGAL_DATA_DIR=\"${CMAKE_SOURCE_DIR}/../data/\"")

add_definitions(-DCGAL_LINKED_WITH_LASLIB)

################################################################################
find_package(CGAL REQUIRED COMPONENTS Qt5)
find_package(Qt5 REQUIRED COMPONENTS Script OpenGL Svg)
find_package(Boost REQUIRED)
find_package(Eigen3 3.1.0) #(requires 3.1.0 or greater)
find_package(LASLIB REQUIRED)
if(LASLIB_FOUND AND NOT TARGET CGAL::LASLIB_support)
  add_library(CGAL::LASLIB_support INTERFACE IMPORTED)
  set_target_properties(CGAL::LASLIB_support PROPERTIES
    INTERFACE_COMPILE_DEFINITIONS "CGAL_LINKED_WITH_LASLIB"
    INTERFACE_INCLUDE_DIRECTORIES "${LASLIB_INCLUDE_DIR};${LASZIP_INCLUDE_DIR}"
    INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${LASLIB_INCLUDE_DIR};${LASZIP_INCLUDE_DIR}"
    INTERFACE_LINK_LIBRARIES "${LASLIB_LIBRARIES}")
endif()
message(STATUS "LASLIB_FOUND: ${LASLIB_FOUND}")
message(STATUS "LASLIB_INCLUDE_DIR: ${LASLIB_INCLUDE_DIR}")
message(STATUS "LASZIP_INCLUDE_DIR: ${LASZIP_INCLUDE_DIR}")
message(STATUS "LASLIB_LIBRARIES: ${LASLIB_LIBRARIES}")

include(CGAL_Eigen3_support)

add_definitions(-DCGAL_USE_BASIC_VIEWER -DQT_NO_KEYWORDS)

################################################################################
find_package(ASSIMP)
if (ASSIMP_FOUND)
  ADD_DEFINITIONS(-DWITH_ASSIMP)
endif (ASSIMP_FOUND)
################################################################################
include_directories(tools)
include_directories(BEFORE SYSTEM ${CMAKE_SOURCE_DIR})
################################################################################
# ui file, created wih Qt Designer
qt5_wrap_ui(uis
  MainWindow.ui
  )
# qrc files (resources files, that contain icons, at least)
qt5_add_resources(CGAL_Qt5_RESOURCE_FILES
  Linear_cell_complex_3.qrc)
################################################################################
set(src_tools
  tools/my_tool.h
  tools/etc.h
  )
add_library(lcc_tools_lib SHARED ${src_tools})
target_link_libraries(lcc_tools_lib PUBLIC
  CGAL::CGAL
  CGAL::CGAL_Qt5
  tet)
if (ASSIMP_FOUND)
  target_link_libraries(lcc_tools_lib PUBLIC assimp)
endif (ASSIMP_FOUND)
################################################################################
add_executable(main
  ${src_tools}

  main.cpp
  )
add_executable(read_las
  ${src_tools}

  read_las.cpp
  )

target_link_libraries(
  main PUBLIC lcc_tools_lib CGAL::Eigen3_support)
target_link_libraries(
  read_las PUBLIC lcc_tools_lib CGAL::LASLIB_support CGAL::Eigen3_support)
lrineau commented 2 years ago

In your first message, there was:

/usr/local/include/CGAL/IO/read_las_points.h:48: error: 'lasreader_las.hpp' file not found
In file included from XXX.cpp:32:
In file included from /usr/local/include/CGAL/IO/read_points.h:23:
/usr/local/include/CGAL/IO/read_las_points.h:48:10: fatal error: 'lasreader_las.hpp' file not found
#include <lasreader_las.hpp>
^~~~~~~~~~~~~~~~~~~

I would like to know which .cpp file is XXX.cpp, in that message. It might be that you actually need to link main with CGAL::LASLIB_support as well.

mrtgenet commented 2 years ago

Ohhh that was it ! The main.cpp does not use read las or any las function BUT it includes <CGAL/IO/read_points.h> which automatically checks if LAS defined and then tries to include

Thank you, and excuse me I should have tried to test read_las in a whole different project.