wlPointCloud.h

Go to the documentation of this file.

// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
// system
#include <vector>
 
namespace wl {
struct Point {
    union {
        struct {
            float x;
            float y;
            float z;
        };
        float u[3];
    };
 
    Point() : x(0), y(0), z(0) {}
};
 
class PointCloud : public std::vector<Point> {
public:
    void computeBoundingBox(Point& bbMin, Point& bbMax) {
        if (empty()) {
            bbMin = bbMax = Point();
            return;
        }
 
        bbMin = bbMax = at(0);
        for (std::size_t i = 1; i < size(); i++) {
            const wl::Point& P = at(i);
            for (int d = 0; d < 3; ++d) {
                if (P.u[d] < bbMin.u[d]) {
                    bbMin.u[d] = P.u[d];
                } else if (P.u[d] > bbMax.u[d]) {
                    bbMax.u[d] = P.u[d];
                }
            }
        }
    }
};
}  // namespace wl