dpoint3.h File Reference

#include "GeomExport.h"
#include "maxheap.h"
#include "point3.h"
#include "assert1.h"
#include <iosfwd>

Classes
class	DPoint3
	class DPoint3 Description: This class describes a 3D point using double precision x, y and z coordinates. More...
class	DRay

Functions
double	Length (const DPoint3 &)
	Returns the 'Length' of the point. More...
int	MaxComponent (const DPoint3 &)
	Returns the component with the maximum absolute value. More...
int	MinComponent (const DPoint3 &)
	Returns the component with the minimum absolute value. More...
DPoint3	Normalize (const DPoint3 &)
	Returns a unit vector. More...
DPoint3	operator* (double, const DPoint3 &)
DPoint3	operator* (const DPoint3 &, double)
DPoint3	operator/ (const DPoint3 &, double)
std::ostream &	operator<< (std::ostream &, const DPoint3 &)
Point3	Point3FromDPoint3 (const DPoint3 &from)
DPoint3	CrossProd (const DPoint3 &a, const DPoint3 &b)
	Returns the cross product of two DPoint3s. More...
double	DotProd (const DPoint3 &a, const DPoint3 &b)
	Returns the dot product of two DPoint3s. More...

Function Documentation

double Length ( const DPoint3 &  v )

inline

Returns the 'Length' of the point.

This is sqrt(v.x*v.x+v.y*v.y+v.z*v.z)

                                       {    
    return (double)sqrt(v.x*v.x+v.y*v.y+v.z*v.z);
    }

int MaxComponent

(

const DPoint3 &

)

Returns the component with the maximum absolute value.

0=x, 1=y, 2=z.

int MinComponent

(

const DPoint3 &

)

Returns the component with the minimum absolute value.

0=x, 1=y, 2=z.

DPoint3 Normalize

(

const DPoint3 &

)

Returns a unit vector.

This is a DPoint3 with each component divided by the point Length().

DPoint3 operator* ( double  f, const DPoint3 &  a  )

inline

                                                     {
    return(DPoint3(a.x*f, a.y*f, a.z*f));
    }

DPoint3 operator* ( const DPoint3 &  a, double  f  )

inline

                                                     {
    return(DPoint3(a.x*f, a.y*f, a.z*f));
    }

DPoint3 operator/ ( const DPoint3 &  a, double  f  )

inline

                                                     {
    DbgAssert(f != 0.0);
    double invF = 1.0 / f;  // Mimic 2019 behavior
    return(DPoint3(a.x * invF, a.y * invF, a.z * invF));
    }

std::ostream& operator<<	(	std::ostream &	,
		const DPoint3 &
	)

Point3 Point3FromDPoint3 ( const DPoint3 &  from )

inline

{
    return Point3(from.x, from.y, from.z);
}

DPoint3 CrossProd	(	const DPoint3 &	a,
		const DPoint3 &	b
	)

Returns the cross product of two DPoint3s.

double DotProd	(	const DPoint3 &	a,
		const DPoint3 &	b
	)

Returns the dot product of two DPoint3s.