halfspace3d Class Reference

#include <vector3d.h>

Collaboration diagram for halfspace3d:

Public Types
typedef const vector3d	cv

Public Member Functions
	halfspace3d ()
	halfspace3d (cv &p1, cv &p2, cv &p3)
	halfspace3d (cv &p1, cv &p2, cv &p3, cv &in)
	halfspace3d (cv &norm, cv &p0)
void	init (cv &p1, cv &p2, cv &p3)
void	initCheck (cv &p1, cv &p2, cv &p3, cv &in)
real	side (cv &pt) const
real	intersect (cv &pos, cv &dir) const
vector3d	intersectPt (cv &start, cv &dir) const

Public Attributes
vector3d	n
real	d

Detailed Description

Definition at line 182 of file vector3d.h.

Member Typedef Documentation

typedef const vector3d cv

Definition at line 188 of file vector3d.h.

Constructor & Destructor Documentation

halfspace3d ( )

inline

Definition at line 189 of file vector3d.h.

{}

halfspace3d ( cv &  p1, cv &  p2, cv &  p3  )

inline

Definition at line 190 of file vector3d.h.

References init().

{init(p1,p2,p3);}

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halfspace3d ( cv &  p1, cv &  p2, cv &  p3, cv &  in  )

inline

Definition at line 191 of file vector3d.h.

References initCheck().

{initCheck(p1,p2,p3,in);}

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halfspace3d ( cv &  norm, cv &  p0  )

inline

Definition at line 193 of file vector3d.h.

References d, vector3d::dot(), n, and nvc::norm().

{n=norm;d=-n.dot(p0);}

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Member Function Documentation

void init ( cv &  p1, cv &  p2, cv &  p3  )

inline

Definition at line 197 of file vector3d.h.

References nvc::cross(), d, vector3d::dot(), n, and p1.

Referenced by halfspace3d(), and initCheck().

                                        {
                n=(p2-p1).cross(p3-p1);
                d=-n.dot(p1);
        }

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void initCheck ( cv &  p1, cv &  p2, cv &  p3, cv &  in  )

inline

Definition at line 203 of file vector3d.h.

References d, init(), n, and side().

Referenced by halfspace3d().

        { init(p1,p2,p3); if (side(in)<0) {n=-n;d=-d;} }

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real intersect ( cv &  pos, cv &  dir  ) const

inline

Definition at line 212 of file vector3d.h.

References d, vector3d::dot(), and n.

Referenced by intersectPt().

                {return -(d+n.dot(pos))/n.dot(dir);}

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vector3d intersectPt ( cv &  start, cv &  dir  ) const

inline

Definition at line 217 of file vector3d.h.

References intersect().

        {
                return start+dir*intersect(start,dir);
        }

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real side ( cv &  pt ) const

inline

Definition at line 208 of file vector3d.h.

References d, vector3d::dot(), and n.

Referenced by c3d6nm(), and initCheck().

        {return n.dot(pt)+d;}

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Member Data Documentation

real d

Definition at line 186 of file vector3d.h.

Referenced by halfspace3d(), init(), initCheck(), intersect(), and side().

vector3d n

Definition at line 185 of file vector3d.h.

Referenced by halfspace3d(), init(), initCheck(), intersect(), and side().

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The documentation for this class was generated from the following file:

• vector3d.h