When making ply_c, fatal error: numpy/ndarrayobject.h: No such file or directory

[whuhxb]

The content in CMakeLists.txt.

Graph for Cut Pursuit

author: Loic Landrieu

date: 2017

CMAKE_MINIMUM_REQUIRED(VERSION 3.5)

PROJECT(LIBGEOF)

SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -std=c++11 -fopenmp -O3")

##############################

Find required packages

##############################

find_package(Boost 1.65.1 COMPONENTS python numpy REQUIRED)

include_directories(${Boost_INCLUDE_DIRS})

include_directories(${Boost_INCLUDE_DIRS} ${EIGEN3_INCLUDE_DIRS}) link_directories(${Boost_LIBRARY_DIRS})

message("Boost includes ARE " ${Boost_INCLUDE_DIRS}) message("Boost LIBRARIES ARE " ${Boost_LIBRARY_DIRS})

find_package(Eigen3 REQUIRED NO_MODULE) INCLUDE_DIRECTORIES(${EIGEN3_INCLUDE_DIR})

LINK_DIRECTORIES(${EIGEN3_LIBRARY_DIRS})

SET(PYTHON_LIBRARIES /usr/lib/x86_64-linux-gnu/libpython2.7.so)

SET(PYTHON_INCLUDE_DIRS /usr/include/python2.7)

find_package(PythonLibs) message("PYTHON LIBRARIES ARE " ${PYTHON_LIBRARIES}) INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_DIRS}) LINK_DIRECTORIES(${PYTHON_LIBRARY_DIRS}) ##############################

Build target library

##############################

set(CMAKE_LD_FLAG "${CMAKE_LD_FLAGS} -shared -Wl -fPIC --export-dynamic -fopenmp -O3 -Wall")

add_library(ply_c SHARED ply_c.cpp) target_link_libraries(ply_c ${Boost_LIBRARIES} ${PYTHON_LIBRARIES} )

But, when make, the errors occur like this.

partition/ply_c/ply_c.cpp:8:33: fatal error: numpy/ndarrayobject.h: No such file or directory compilation terminated. CMakeFiles/ply_c.dir/build.make:81: recipe for target 'CMakeFiles/ply_c.dir/ply_c.cpp.o' failed make[2]: [CMakeFiles/ply_c.dir/ply_c.cpp.o] Error 1 CMakeFiles/Makefile2:94: recipe for target 'CMakeFiles/ply_c.dir/all' failed make[1]: [CMakeFiles/ply_c.dir/all] Error 2 Makefile:102: recipe for target 'all' failed make: *** [all] Error 2

[MEIXuYan]

It shows you didn't install numpy lib or the complier can not find suitable numpy version. Given the full output log when you do mkdir build && cd build/ && cmake .. && make may help.

[MEIXuYan]

In my case, the higher version of cmake tend to find numpy of python3.8, we can fix it in CMakeLists.txt file , change follow lines from

find_package(PythonLibs)
find_package(PythonInterp)

to

find_package(PythonLibs 3.7 REQUIRED)
find_package(PythonInterp 3.7 REQUIRED)

my runtime python version is 3.7, you can change it to your runtime python version.

[loicland]

Hi!

We are releasing a new version of SuperPoint Graph called SuperPoint Transformer (SPT).

https://github.com/drprojects/superpoint_transformer

It is better in any way:

✨ SPT in numbers ✨
📊 SOTA results: 76.0 mIoU S3DIS 6-Fold, 63.5 mIoU on KITTI-360 Val, 79.6 mIoU on DALES
🦋 212k parameters only!
⚡ Trains on S3DIS in 3h on 1 GPU
⚡ Preprocessing is x7 faster than SPG!
🚀 Easy install (no more boost!)

If you are interested in lightweight, high-performance 3D deep learning, you should check it out. In the meantime, we will finally retire SPG and stop maintaining this repo.