我正在寻找pyembree
使用 CMake for Windows 从源代码构建的帮助。GitHub 上列出了有关此问题历史的更多详细信息。刚刚删除了对 conda-forge 的 Windows 支持pyembree
,因此非常感谢您提供任何帮助!
安装说明
系统
测试:
操作系统: Windows 10 x64 专业版,内部版本 1909 Python: 3.8.10
脚步
- 安装Microsoft Visual C++ 14.X 和 Windows 10 SDK。这些是构建
cython
代码所必需的。
(注意: Microsoft Visual Studio 的版本与 Microsoft Visual C++ 的版本不同。Visual Studio 2015、2017 和 2019 都有 MSVCv14X 构建工具。在撰写本文时,安装 Visual Studio 2019 构建工具
MSVCv142 - VS 2019 C++ x64/x86 build tools
和Windows 10 SDK (10.0.18362.0)
组件就足够了(
Desktop development with C++
如果安装 Visual Studio 2019,请选择工作负载)。
- 安装vcpkg
C:\\vcpkg
并将路径添加到您的System Environment Variables
:
C:
mkdir vcpkg
cd C:\\vcpkg
git clone https://github.com/Microsoft/vcpkg.git
bootstrap-vcpkg.bat
vcpkg integrate install
- 安装
embree2 64-bit
:
vcpkg install embree2:x64-windows
注意: 迄今为止,pyembree 仍然依赖于 Embree 2,并且尚未针对 Embree 3 进行更新。
安装cmake。
venv
创建您的项目文件夹并使用(使用)初始化虚拟环境Python 3.6 - 3.8
。在此示例中,Python 3.8.5 x64-bit
选择它是因为它是Miniconda py38_4.9.2
.安装以下软件包:
py -m pip install numpy cython cmake ninja scikit-build wheel setuptools pyvista pykdtree
将以下cmake 模块添加到您的系统 cmake 模块文件夹(例如
C:\Program Files\CMake\share\cmake-3.21\Modules\
)。导航到
<virtual environment folder>\Lib\site-packages
并克隆pyembree
repo:
git clone https://github.com/scopatz/pyembree.git
- 将目录更改为
pyembree
文件夹并创建以下顶级CMakeLists.txt
cmake_minimum_required(VERSION 3.21.0)
project(pyembree
VERSION 0.1.6
LANGUAGES CXX
)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_CXX_STANDARD_REQUIRED True)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release CACHE STRING "Build type" FORCE)
endif()
set(CMAKE_TOOLCHAIN_FILE "C:/vcpkg/scripts/buildsystems/vcpkg.cmake")
find_package(PythonExtensions REQUIRED)
find_package(Cython REQUIRED)
find_package(embree 2 CONFIG REQUIRED)
add_subdirectory(${PROJECT_NAME})
- 移动到子文件夹
pyembree
并创建以下子级别CMakeLists.txt
:
add_cython_target(mesh_construction.pyx CXX)
add_cython_target(rtcore_scene.pyx CXX)
add_cython_target(rtcore.pyx CXX)
add_cython_target(triangles.pyx CXX)
add_library(${PROJECT_NAME} STATIC ${mesh_construction} ${rtcore_scene} ${rtcore} ${triangles})
target_sources(${PROJECT_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
target_include_directories(${PROJECT_NAME}
PUBLIC "<system python path>/include"
PUBLIC "C:/vcpkg/installed/x64-windows/include/embree2"
PUBLIC "<virtual environment folder>/Lib/site-packages/numpy/core/include"
)
target_link_directories(${PROJECT_NAME}
PUBLIC "<system python path>/libs"
PUBLIC "C:/vcpkg/installed/x64-windows/lib"
PUBLIC "C:/vcpkg/installed/x64-windows/bin"
PUBLIC "<virtual environment folder>/Lib/site-packages/numpy/core/lib"
)
target_link_libraries(${PROJECT_NAME}
embree
)
python_extension_module(${PROJECT_NAME})
install(TARGETS ${PROJECT_NAME} LIBRARY DESTINATION lib)
替换<system python path>
(例如C:/Program Files/Python38
)并<virtual environment folder>
相应地。
- 移回顶级
pyembree
文件夹并创建以下setup.py
文件:
from setuptools import find_packages
from skbuild import setup
import numpy as np
from Cython.Build import cythonize
include_path = [np.get_include()]
ext_modules = cythonize('pyembree/*.pyx', language_level=3, include_path=include_path)
for ext in ext_modules:
ext.include_dirs = include_path
ext.libraries = [
"C:/vcpkg/installed/x86-windows/lib/embree",
"C:/vcpkg/installed/x86-windows/lib/tbb",
"C:/vcpkg/installed/x86-windows/lib/tbbmalloc",
"C:/vcpkg/installed/x86-windows/lib/tbbmalloc_proxy",
]
setup(
name="pyembree",
version='0.1.6',
ext_modules=ext_modules,
zip_safe=False,
packages=find_packages(),
include_package_data=True
)
- 将以下行添加到每个
*.pyx
和*.pxd
文件的顶部pyembree
:
# distutils: language=c++
pyembree
通过从顶级文件夹运行以下命令来构建和安装pyembree
:
py setup.py build
py setup.py install
- 最后,安装
rtree
和trimesh
:
py -m pip install rtree trimesh
当前挑战
我被困在py setup.py build
.
- 目前,我需要将
embree
标头和库(.lib
和.dll
)复制并粘贴到源文件夹(<virtual environment folder>/Lib/site-packages/pyembree
)和生成的构建文件夹(<virtual environment folder>\Lib\site-packages\pyembree\_skbuild\win-amd64-3.8\cmake-build\pyembree
)
我可以在 CMake 中使用复制文件命令吗?
- 运行时
py setup.py build
,我收到、和LNK201: unresolved external symbol
的链接器错误。我相信这是一个 DLL 构造,它仅适用于 C 语言和共享库(不是静态库),所以我有点困惑。__imp_rtcMapBuffer
__imp_rtc_NewTriangleMesh
__imp_rtcUnmapBuffer
__imp_
对此错误的任何帮助也将不胜感激!
Creating library _skbuild\win-amd64-3.8\setuptools\temp.win-amd64-3.8\Release\pyembree\mesh_construction.cp38-win_amd64.lib and object _skbuild\win-amd64-3.8\setuptools\temp.win-amd64-3.8\Release\pyembree\mesh_construction.cp38-win_amd64.exp
mesh_construction.obj : error LNK2001: unresolved external symbol __imp_rtcMapBuffer
mesh_construction.obj : error LNK2001: unresolved external symbol __imp_rtcNewTriangleMesh
mesh_construction.obj : error LNK2001: unresolved external symbol __imp_rtcUnmapBuffer
_skbuild\win-amd64-3.8\setuptools\lib.win-amd64-3.8\pyembree\mesh_construction.cp38-win_amd64.pyd : fatal error LNK1120: 3 unresolved externals
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\Community\\VC\\Tools\\MSVC\\14.16.27023\\bin\\HostX86\\x64\\link.exe' failed with exit status 1120