要使用CGAL为点云赋值属性并将其显示为红色,可以按照以下步骤进行操作:

  1. 定义点云类型和属性类型:
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/property_map.h>
#include <CGAL/IO/read_xyz_points.h>

typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
typedef Kernel::Point_3 Point;
typedef boost::tuple<Point, CGAL::Color> PointWithColor;
typedef std::vector<PointWithColor> PointList;
  1. 读取点云文件并创建属性映射:
std::ifstream stream("point_cloud.xyz");
PointList points;
CGAL::read_xyz_points(stream, std::back_inserter(points), CGAL::parameters::point_map(boost::get<0, PointWithColor>));
  1. 将属性映射为红色:
for (PointWithColor& p : points) {
  boost::get<1, PointWithColor>(p) = CGAL::Color(255, 0, 0);
}
  1. 显示点云:
CGAL::draw(points);
``

原文地址: https://www.cveoy.top/t/topic/cu8W 著作权归作者所有。请勿转载和采集!

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