////  Extents.h//  libraries/shared/src////  Created by Andrzej Kapolka on 9/18/13.//  Moved to shared by Brad Hefta-Gaub on 9/11/14//  Copyright 2013-2104 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// #ifndef hifi_Extents_h#define hifi_Extents_h #include <glm/glm.hpp>#include <glm/gtx/component_wise.hpp> #include <QDebug>#include "StreamUtils.h"#include "GLMHelpers.h" class AABox;class Transform; class Extents {public:    Extents() { }    Extents(const glm::vec3& minimum, const glm::vec3& maximum) : minimum(minimum), maximum(maximum) {}    Extents(const AABox& box) { reset(); add(box); }     /// set minimum and maximum to FLT_MAX and -FLT_MAX respectively    void reset();     /// \param extents another intance of extents    /// expand current limits to contain other extents    void addExtents(const Extents& extents);     /// \param aabox another intance of extents    /// expand current limits to contain other aabox    void add(const AABox& box);     /// \param point new point to compare against existing limits    /// compare point to current limits and expand them if necessary to contain point    void addPoint(const glm::vec3& point);     /// \param point    /// \return true if point is within current limits    bool containsPoint(const glm::vec3& point) const;     /// \return whether or not the extents are empty    bool isEmpty() const { return minimum == maximum; }    bool isValid() const { return !((minimum == Vectors::MAX) && (maximum == Vectors::MIN)); }     /// \param vec3 for delta amount to shift the extents by    /// \return true if point is within current limits    void shiftBy(const glm::vec3& delta) { minimum += delta; maximum += delta; }        /// rotate the extents around orign by rotation    void rotate(const glm::quat& rotation);        /// scale the extents around orign by scale    void scale(float scale) { minimum *= scale; maximum *= scale; }    void scale(const glm::vec3& scale) { minimum *= scale; maximum *= scale; }        // Transform the extents with transform    void transform(const Transform& transform);     glm::vec3 size() const { return maximum - minimum; }    float largestDimension() const { return glm::compMax(size()); }     /// \return new Extents which is original rotated around origin by rotation    Extents getRotated(const glm::quat& rotation) const {        Extents temp(minimum, maximum);        temp.rotate(rotation);        return temp;    }     glm::vec3 minimum{ Vectors::MAX };    glm::vec3 maximum{ Vectors::MIN };}; inline QDebug operator<<(QDebug debug, const Extents& extents) {    debug << "Extents[ ("             << extents.minimum << " ) to ("            << extents.maximum << ") size: ("            << (extents.maximum - extents.minimum) << ")"            << " ]";     return debug;}  #endif // hifi_Extents_h