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DSOPicker Class Reference

Inheritance diagram for DSOPicker:

Inheritance graph
Collaboration diagram for DSOPicker:

Collaboration graph
List of all members.

Public Member Functions

 DSOPicker (const Point3d &, const Vec3d &, float)
void process (DeepSkyObject *const &, double, float)
 ~DSOPicker ()

Public Attributes

Vec3d pickDir
const DeepSkyObject * pickedDSO
Point3d pickOrigin
double sinAngle2Closest

Constructor & Destructor Documentation

DSOPicker::DSOPicker (  const Point3d &  ,
const Vec3d &  ,
float 
) 
 

Definition at line 734 of file universe.cpp.

References ANGULAR_RES, and sin().

00736                                   :
00737     pickedDSO       (NULL),
00738     pickOrigin      (pickOrigin),
00739     pickDir         (pickDir),
00740     sinAngle2Closest(sin(angle/2.0) > ANGULAR_RES ? sin(angle/2.0) :
00741                                                     ANGULAR_RES )
00742 {
00743 }

DSOPicker::~DSOPicker (   )  [inline]
 

Definition at line 722 of file universe.cpp.

00722 {};

Member Function Documentation

void DSOPicker::process (  DeepSkyObject *const &  ,
double  ,
float 
)  [virtual]
 

Implements OctreeProcessor< DeepSkyObject *, double >.

Definition at line 746 of file universe.cpp.

References ANGULAR_RES, Vector3< T >::normalize(), pickDir, pickedDSO, pickOrigin, sinAngle2Closest, sqrt(), testIntersection(), Vector3< T >::x, Point3< T >::x, Vector3< T >::y, Point3< T >::y, Vector3< T >::z, and Point3< T >::z.

00747 {
00748     Vec3d relativeDSOPos = dso->getPosition() - pickOrigin;
00749     Vec3d dsoDir = relativeDSOPos;
00750     dsoDir.normalize();
00751 
00752     double sinAngle2 = 0.0;
00753 
00754     double distance2;
00755     if (testIntersection(Ray3d(Point3d(0.0, 0.0, 0.0), pickDir),
00756                          Sphered(Point3d(0.0, 0.0, 0.0) + relativeDSOPos, (double) dso->getRadius()), distance2))
00757     {
00758         Point3d dsoPos = dso->getPosition();
00759         dsoDir         = Vec3d(dsoPos.x * 1.0e-6 - pickOrigin.x,
00760                                dsoPos.y * 1.0e-6 - pickOrigin.y,
00761                                dsoPos.z * 1.0e-6 - pickOrigin.z);
00762         dsoDir.normalize();
00763     }
00764 
00765     Vec3d dsoMissd   = dsoDir - Vec3d(pickDir.x, pickDir.y, pickDir.z);
00766     sinAngle2        = sqrt(dsoMissd * dsoMissd)/2.0;
00767 
00768     if (sinAngle2 <= sinAngle2Closest)
00769     {
00770         sinAngle2Closest = sinAngle2 > ANGULAR_RES ? sinAngle2 : ANGULAR_RES;
00771         pickedDSO        = dso;
00772     }
00773 }

Member Data Documentation

Vec3d DSOPicker::pickDir
 

Definition at line 729 of file universe.cpp.

Referenced by process().

const DeepSkyObject* DSOPicker::pickedDSO
 

Definition at line 727 of file universe.cpp.

Referenced by Universe::pickDeepSkyObject(), and process().

Point3d DSOPicker::pickOrigin
 

Definition at line 728 of file universe.cpp.

Referenced by process().

double DSOPicker::sinAngle2Closest
 

Definition at line 730 of file universe.cpp.

Referenced by process().

The documentation for this class was generated from the following file:
Generated on Sat Jan 14 22:33:17 2006 for Celestia by  doxygen 1.4.1