llsphere.h

Go to the documentation of this file.

// llsphere.h
#ifndef LL_SPHERE_H
#define LL_SPHERE_H

#include "stdtypes.h"
#include "v3math.h"
#include <iostream>
#include <vector>

class LLSphere
{
public:
        LLSphere();
        LLSphere( const LLVector3& center, F32 radius );

        void set( const LLVector3& center, F32 radius );
        void setCenter( const LLVector3& center );
        void setRadius( F32 radius );

        const LLVector3& getCenter() const;
        F32 getRadius() const;

        // returns TRUE if this sphere completely contains other_sphere
        BOOL contains(const LLSphere& other_sphere) const;

        // returns TRUE if this sphere overlaps other_sphere
        BOOL overlaps(const LLSphere& other_sphere) const;

        // returns overlap distance
        // negative overlap is closest approach
        F32 getOverlap(const LLSphere& other_sphere) const;

        // removes any spheres that are contained in others
        static void collapse(std::vector<LLSphere>& sphere_list);

        // returns minimum sphere bounding sphere for a set of spheres
        static LLSphere getBoundingSphere(const LLSphere& first_sphere, const LLSphere& second_sphere);
        static LLSphere getBoundingSphere(const std::vector<LLSphere>& sphere_list);

        bool operator==(const LLSphere& rhs) const;

        friend std::ostream& operator<<( std::ostream& output_stream, const LLSphere& line );

protected:
        LLVector3 mCenter;
        F32 mRadius;
};


#endif

---