cgal安装实例

目录

cgal安装示例

demo.cpp 简单的可以

报错Delaunay_triangulation_3：

cmakelist.txt 编译ok：

cgal 下载CGAL-6.0.1-library.tar，cmakelist.txt添加头文件路径即可。

---

cgal安装示例

CMakeLists.txt

cmake_minimum_required(VERSION 3.10)
project(MyCGALProject)

# 查找CGAL库
find_package(CGAL REQUIRED)

# 包含CGAL头文件目录
include_directories(${CGAL_INCLUDE_DIRS})

# 添加可执行文件及其链接库
add_executable(my_executable main.cpp)
target_link_libraries(my_executable ${CGAL_LIBRARIES})

demo.cpp 简单的可以

#include <CGAL/Simple_cartesian.h>
#include <CGAL/convex_hull_2.h>
#include <vector>
#include <iterator>
#include <iostream>

typedef CGAL::Simple_cartesian<double> K;
typedef K::Point_2 Point_2;

int main()
{
    std::vector<Point_2> points = { Point_2(0, 0), Point_2(10, 0), Point_2(10, 10), Point_2(0, 10), Point_2(5, 5) };
    std::vector<Point_2> result;

    CGAL::convex_hull_2(points.begin(), points.end(), std::back_inserter(result));

    std::cout << "The convex hull contains " << result.size() << " points:" << std::endl;
    for (const auto& point : result) {
        std::cout << "(" << point.x() << ", " << point.y() << ")" << std::endl;
    }

    return 0;
}

报错Delaunay_triangulation_3：

#include <CGAL/Simple_cartesian.h>
#include <CGAL/convex_hull_2.h>
#include <vector>
#include <iterator>
#include <iostream>

#include <CGAL/Delaunay_triangulation_3.h>
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Triangulation_3.h>
#include <CGAL/Triangulation_vertex_base_with_info_3.h>
#include <CGAL/compute_average_spacing.h>

typedef CGAL::Simple_cartesian<double> K;
typedef K::Point_2 Point_2;

typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Triangulation_vertex_base_with_info_3<unsigned int, K> Vb;
typedef CGAL::Triangulation_data_structure_3<Vb> Tds;
typedef CGAL::Delaunay_triangulation_3<K, Tds> Triangulation;

int main()
{
    std::vector<Point_2> points = { Point_2(0, 0), Point_2(10, 0), Point_2(10, 10), Point_2(0, 10), Point_2(5, 5) };
    std::vector<Point_2> result;

    CGAL::convex_hull_2(points.begin(), points.end(), std::back_inserter(result));

    std::cout << "The convex hull contains " << result.size() << " points:" << std::endl;
    for (const auto& point : result) {
        std::cout << "(" << point.x() << ", " << point.y() << ")" << std::endl;
    }

    return 0;
}

cmakelist.txt 编译ok：

cgal 下载CGAL-6.0.1-library.tar，cmakelist.txt添加头文件路径即可。

Release CGAL 6.0.1 · CGAL/cgal · GitHub

cmake_minimum_required(VERSION 3.10)
project(MyCGALProject)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
# 查找CGAL库
find_package(CGAL REQUIRED)

# 包含CGAL头文件目录
include_directories("/shared_disk/users/lbg/project/3dgs/gs/cgal_lib/CGAL-6.0.1/include")

# 添加可执行文件及其链接库
add_executable(my_executable main.cpp)
target_link_libraries(my_executable ${CGAL_LIBRARIES})