运行 cgal示例使用qt creator错误
run cgal example using qt creator error
我是使用 CGAL 库的初学者,我在 Fedora 开发 qt creator OS,
我构建并配置了 CGAL 包,然后创建了控制台应用程序并尝试这个示例(与 CGAL 包一起安装):
// Author(s) : Camille Wormser, Pierre Alliez
#include <iostream>
#include <list>
#include <CGAL/Simple_cartesian.h>
#include <CGAL/AABB_tree.h>
#include <CGAL/AABB_traits.h>
#include <CGAL/AABB_triangle_primitive.h>
typedef CGAL::Simple_cartesian<double> K;
typedef K::FT FT;
typedef K::Ray_3 Ray;
typedef K::Line_3 Line;
typedef K::Point_3 Point;
typedef K::Triangle_3 Triangle;
typedef std::list<Triangle>::iterator Iterator;
typedef CGAL::AABB_triangle_primitive<K, Iterator> Primitive;
typedef CGAL::AABB_traits<K, Primitive> AABB_triangle_traits;
typedef CGAL::AABB_tree<AABB_triangle_traits> Tree;
int main()
{
Point a(1.0, 0.0, 0.0);
Point b(0.0, 1.0, 0.0);
Point c(0.0, 0.0, 1.0);
Point d(0.0, 0.0, 0.0);
std::list<Triangle> triangles;
triangles.push_back(Triangle(a,b,c));
triangles.push_back(Triangle(a,b,d));
triangles.push_back(Triangle(a,d,c));
// constructs AABB tree
Tree tree(triangles.begin(),triangles.end());
// counts #intersections
Ray ray_query(a,b);
std::cout << tree.number_of_intersected_primitives(ray_query)
<< " intersections(s) with ray query" << std::endl;
// compute closest point and squared distance
Point point_query(2.0, 2.0, 2.0);
Point closest_point = tree.closest_point(point_query);
std::cerr << "closest point is: " << closest_point << std::endl;
FT sqd = tree.squared_distance(point_query);
std::cout << "squared distance: " << sqd << std::endl;
return EXIT_SUCCESS;
}
然后我将头文件添加到项目中:
"Simple_cartesian.h" - "AABB_tree.h" - "AABB_traits.h" - "AABB_triangle_primitive.h"
但是在 运行 项目中我遇到了这些错误:
:-1: 错误: main.o: 对符号 '_ZN5boost6system15system_categoryEv'
的未定义引用
:-1: error: note: '_ZN5boost6system15system_categoryEv' is defined in DSO /lib64/libboost_system.so.1.54.0 因此尝试将其添加到链接器命令行
/lib64/libboost_system.so.1.54.0:-1:错误:无法读取符号:无效操作
:-1: 错误: collect2: 错误: ld 返回 1 退出状态
有什么帮助吗?
尝试将此行添加到您的 .pro 文件中:
LIBS += -lboost_system
当然,假设你已经下载并安装了boost.system库。
我是使用 CGAL 库的初学者,我在 Fedora 开发 qt creator OS, 我构建并配置了 CGAL 包,然后创建了控制台应用程序并尝试这个示例(与 CGAL 包一起安装):
// Author(s) : Camille Wormser, Pierre Alliez
#include <iostream>
#include <list>
#include <CGAL/Simple_cartesian.h>
#include <CGAL/AABB_tree.h>
#include <CGAL/AABB_traits.h>
#include <CGAL/AABB_triangle_primitive.h>
typedef CGAL::Simple_cartesian<double> K;
typedef K::FT FT;
typedef K::Ray_3 Ray;
typedef K::Line_3 Line;
typedef K::Point_3 Point;
typedef K::Triangle_3 Triangle;
typedef std::list<Triangle>::iterator Iterator;
typedef CGAL::AABB_triangle_primitive<K, Iterator> Primitive;
typedef CGAL::AABB_traits<K, Primitive> AABB_triangle_traits;
typedef CGAL::AABB_tree<AABB_triangle_traits> Tree;
int main()
{
Point a(1.0, 0.0, 0.0);
Point b(0.0, 1.0, 0.0);
Point c(0.0, 0.0, 1.0);
Point d(0.0, 0.0, 0.0);
std::list<Triangle> triangles;
triangles.push_back(Triangle(a,b,c));
triangles.push_back(Triangle(a,b,d));
triangles.push_back(Triangle(a,d,c));
// constructs AABB tree
Tree tree(triangles.begin(),triangles.end());
// counts #intersections
Ray ray_query(a,b);
std::cout << tree.number_of_intersected_primitives(ray_query)
<< " intersections(s) with ray query" << std::endl;
// compute closest point and squared distance
Point point_query(2.0, 2.0, 2.0);
Point closest_point = tree.closest_point(point_query);
std::cerr << "closest point is: " << closest_point << std::endl;
FT sqd = tree.squared_distance(point_query);
std::cout << "squared distance: " << sqd << std::endl;
return EXIT_SUCCESS;
}
然后我将头文件添加到项目中: "Simple_cartesian.h" - "AABB_tree.h" - "AABB_traits.h" - "AABB_triangle_primitive.h"
但是在 运行 项目中我遇到了这些错误: :-1: 错误: main.o: 对符号 '_ZN5boost6system15system_categoryEv'
的未定义引用:-1: error: note: '_ZN5boost6system15system_categoryEv' is defined in DSO /lib64/libboost_system.so.1.54.0 因此尝试将其添加到链接器命令行
/lib64/libboost_system.so.1.54.0:-1:错误:无法读取符号:无效操作
:-1: 错误: collect2: 错误: ld 返回 1 退出状态
有什么帮助吗?
尝试将此行添加到您的 .pro 文件中:
LIBS += -lboost_system
当然,假设你已经下载并安装了boost.system库。