ossimSonomaSensor::ossimPlane Class Reference

#include <ossimSonomaSensor.h>

Public Member Functions
	ossimPlane (double nx=0, double ny=0, double nz=1.0, double offset=1.0)
bool	intersect (ossimDpt3d &result, ossimDpt3d &origin, ossimDpt3d &ray)
void	setOffset (double offset)

Protected Attributes
double	m_nx
double	m_ny
double	m_nz
double	m_offset

Detailed Description

Definition at line 122 of file ossimSonomaSensor.h.

Constructor & Destructor Documentation

ossimPlane()

ossimSonomaSensor::ossimPlane::ossimPlane ( double  nx = 0, double  ny = 0, double  nz = 1.0, double  offset = 1.0  )

inline

Definition at line 125 of file ossimSonomaSensor.h.

      :m_nx(nx),
      m_ny(ny),
      m_nz(nz),
      m_offset(offset)
      {
      }

Member Function Documentation

intersect()

bool ossimSonomaSensor::ossimPlane::intersect ( ossimDpt3d &  result, ossimDpt3d &  origin, ossimDpt3d &  ray  )

inline

Definition at line 133 of file ossimSonomaSensor.h.

References ossim::almostEqual(), ossimDpt3d::x, ossimDpt3d::y, and ossimDpt3d::z.

Referenced by ossimSonomaSensor::intersectRay(), and ossimSonomaSensor::intersectRayWithHeight().

      {
         // P*N + D = 0;
         // solve for parametric t:
         //  P = P0+t*ray
         //
         //  (P0 + t*ray)*N + D = 0
         //  (P0*N + P0*ray*t + D = 0;
         //  t = -(D + P0*N)/(N*ray)
         //  if(t >= 0.0 then intersection
         
         double numerator   = m_offset + origin.x*m_nx+origin.y*m_ny + origin.z*m_nz;
         double denominator = ray.z*m_nx + ray.y*m_ny + ray.z*m_nz;
         if(ossim::almostEqual(denominator, 0.0))
         {
            return false;
         }
         
         double t = -numerator/denominator;
         result.x = origin.x + t*ray.x;
         result.y = origin.y + t*ray.y;
         result.z = origin.z + t*ray.z;
         
         return true;
      }

setOffset()

void ossimSonomaSensor::ossimPlane::setOffset ( double  offset )

inline

Definition at line 159 of file ossimSonomaSensor.h.

Referenced by ossimSonomaSensor::intersectRay().

      {
         m_offset = offset;
      }

Member Data Documentation

m_nx

double ossimSonomaSensor::ossimPlane::m_nx

protected

Definition at line 164 of file ossimSonomaSensor.h.

m_ny

double ossimSonomaSensor::ossimPlane::m_ny

protected

Definition at line 164 of file ossimSonomaSensor.h.

m_nz

double ossimSonomaSensor::ossimPlane::m_nz

protected

Definition at line 164 of file ossimSonomaSensor.h.

m_offset

double ossimSonomaSensor::ossimPlane::m_offset

protected

Definition at line 165 of file ossimSonomaSensor.h.

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

• ossimSonomaSensor.h