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Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes
vtkGeoCamera Class Reference

Geo interface to a camera. More...

#include <vtkGeoCamera.h>

Inheritance diagram for vtkGeoCamera:
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List of all members.

Public Types

typedef vtkObject Superclass

Public Member Functions

virtual int IsA (const char *type)
vtkGeoCameraNewInstance () const
void PrintSelf (ostream &os, vtkIndent indent)
vtkCameraGetVTKCamera ()
void InitializeNodeAnalysis (int rendererSize[2])
double GetNodeCoverage (vtkGeoTerrainNode *node)
virtual doubleGetPosition ()
virtual void GetPosition (double &, double &, double &)
virtual void GetPosition (double[3])
void SetLongitude (double longitude)
virtual double GetLongitude ()
void SetLatitude (double latitude)
virtual double GetLatitude ()
void SetDistance (double Distance)
virtual double GetDistance ()
void SetHeading (double heading)
virtual double GetHeading ()
void SetTilt (double tilt)
virtual double GetTilt ()
virtual bool GetLockHeading ()
virtual void SetLockHeading (bool)
virtual void LockHeadingOn ()
virtual void LockHeadingOff ()
void SetOriginLatitude (double oLat)
virtual double GetOriginLatitude ()
void SetOriginLongitude (double oLat)
virtual double GetOriginLongitude ()
virtual doubleGetOrigin ()
virtual void GetOrigin (double &, double &, double &)
virtual void GetOrigin (double[3])
void SetOrigin (double ox, double oy, double oz)

Static Public Member Functions

static vtkGeoCameraNew ()
static int IsTypeOf (const char *type)
static vtkGeoCameraSafeDownCast (vtkObjectBase *o)

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 vtkGeoCamera ()
 ~vtkGeoCamera ()
void UpdateVTKCamera ()
void UpdateAngleRanges ()
void ComputeRectilinearOrigin ()

Protected Attributes

vtkSmartPointer< vtkCameraVTKCamera
vtkSmartPointer< vtkTransformTransform
double OriginLatitude
double OriginLongitude
double Origin [3]
double Longitude
double Latitude
double Distance
double Heading
double Tilt
bool LockHeading
double ForwardNormal [3]
double RightNormal [3]
double UpNormal [3]
double Aspect [2]
double LeftPlaneNormal [3]
double RightPlaneNormal [3]
double DownPlaneNormal [3]
double UpPlaneNormal [3]
double Position [3]

Detailed Description

Geo interface to a camera.

I wanted to hide the normal vtkCamera API so I did not make this a subclass. The camera is a helper object. You can get a pointer to the camera, but it should be treated like a const.

View up of the camera is restricted so there is no roll relative to the earth. I am going to keep view up of the camera orthogonalized to avoid the singularity that exists when the camera is pointing straight down. In this case, view up is the same as heading.

The state of the view is specified by the vector: (Longitude,Latitude,Distance,Heading,Tilt). Longitude in degrees: (-180->180) Relative to absolute coordinates. Latitude in degrees: (-90->90) Relative to Longitude. Distance in Meters Relative to Longitude and Latitude. above sea level ???? should we make this from center of earth ???? ???? what about equatorial bulge ???? Heading in degrees: (-180->180) Relative to Logitude and Latitude. 0 is north. 90 is east. ???? what is the standard ???? 180 is south. -90 is west. Tilt in degrees: (0->90) Relative to Longitude, Latitude, Distance and Heading.

Transformation: Post concatenate. All rotations use right hand rule and are around (0,0,0) (earth center). (0,0,0,0,0) is this rectilinear point (0, EarthRadius, 0) pointing (0,0,1), view up (0,1,0).

Rotate Tilt around x axis, Rotate Heading around -y axis Center, Translate EarthRadius in y direction. Rotate Latitude around x axis by Latitude, Rotate Longitude around z axis (earth axis),

See also:
vtkGeoInteractorStyle vtkCamera

Definition at line 82 of file vtkGeoCamera.h.


Member Typedef Documentation

Reimplemented from vtkObject.

Definition at line 86 of file vtkGeoCamera.h.


Constructor & Destructor Documentation

vtkGeoCamera::vtkGeoCamera ( ) [protected]
vtkGeoCamera::~vtkGeoCamera ( ) [protected]

Member Function Documentation

static vtkGeoCamera* vtkGeoCamera::New ( ) [static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkObject.

static int vtkGeoCamera::IsTypeOf ( const char *  name) [static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObject.

virtual int vtkGeoCamera::IsA ( const char *  name) [virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObject.

Reimplemented from vtkObject.

virtual vtkObjectBase* vtkGeoCamera::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkObject.

Reimplemented from vtkObject.

void vtkGeoCamera::PrintSelf ( ostream &  os,
vtkIndent  indent 
) [virtual]

Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObject.

virtual double* vtkGeoCamera::GetPosition ( ) [virtual]

Get the world position without the origin shift.

virtual void vtkGeoCamera::GetPosition ( double ,
double ,
double  
) [virtual]

Get the world position without the origin shift.

virtual void vtkGeoCamera::GetPosition ( double  [3]) [virtual]

Get the world position without the origin shift.

void vtkGeoCamera::SetLongitude ( double  longitude)

Longitude is in degrees: (-180->180) Relative to absolute coordinates. Rotate Longitude around z axis (earth axis),

virtual double vtkGeoCamera::GetLongitude ( ) [virtual]

Longitude is in degrees: (-180->180) Relative to absolute coordinates. Rotate Longitude around z axis (earth axis),

void vtkGeoCamera::SetLatitude ( double  latitude)

Latitude is in degrees: (-90->90) Relative to Longitude. Rotate Latitude around x axis by Latitude,

virtual double vtkGeoCamera::GetLatitude ( ) [virtual]

Latitude is in degrees: (-90->90) Relative to Longitude. Rotate Latitude around x axis by Latitude,

void vtkGeoCamera::SetDistance ( double  Distance)

Distance is in Meters Relative to Longitude and Latitude. above sea level ???? should we make this from center of earth ???? ???? what about equatorial bulge ????

virtual double vtkGeoCamera::GetDistance ( ) [virtual]

Distance is in Meters Relative to Longitude and Latitude. above sea level ???? should we make this from center of earth ???? ???? what about equatorial bulge ????

void vtkGeoCamera::SetHeading ( double  heading)

Heading is in degrees: (-180->180) Relative to Logitude and Latitude. 0 is north. 90 is east. ???? what is the standard ???? 180 is south. -90 is west. Rotate Heading around -y axis Center,

virtual double vtkGeoCamera::GetHeading ( ) [virtual]

Heading is in degrees: (-180->180) Relative to Logitude and Latitude. 0 is north. 90 is east. ???? what is the standard ???? 180 is south. -90 is west. Rotate Heading around -y axis Center,

void vtkGeoCamera::SetTilt ( double  tilt)

Tilt is also know as pitch. Tilt is in degrees: (0->90) Relative to Longitude, Latitude, and Heading. Rotate Tilt around x axis,

virtual double vtkGeoCamera::GetTilt ( ) [virtual]

Tilt is also know as pitch. Tilt is in degrees: (0->90) Relative to Longitude, Latitude, and Heading. Rotate Tilt around x axis,

This vtk camera is updated to match this geo cameras state. It should be treated as a const and should not be modified.

void vtkGeoCamera::InitializeNodeAnalysis ( int  rendererSize[2])

We precompute some values to speed up update of the terrain. Unfortunately, they have to be manually/explicitly updated when the camera or renderer size changes.

This method estimates how much of the view is covered by the sphere. Returns a value from 0 to 1.

virtual bool vtkGeoCamera::GetLockHeading ( ) [virtual]

Whether to lock the heading a particular value, or to let the heading "roam free" when performing latitude and longitude changes.

virtual void vtkGeoCamera::SetLockHeading ( bool  ) [virtual]

Whether to lock the heading a particular value, or to let the heading "roam free" when performing latitude and longitude changes.

virtual void vtkGeoCamera::LockHeadingOn ( ) [virtual]

Whether to lock the heading a particular value, or to let the heading "roam free" when performing latitude and longitude changes.

virtual void vtkGeoCamera::LockHeadingOff ( ) [virtual]

Whether to lock the heading a particular value, or to let the heading "roam free" when performing latitude and longitude changes.

This point is shifted to 0,0,0 to avoid openGL issues.

virtual double vtkGeoCamera::GetOriginLatitude ( ) [virtual]

This point is shifted to 0,0,0 to avoid openGL issues.

This point is shifted to 0,0,0 to avoid openGL issues.

This point is shifted to 0,0,0 to avoid openGL issues.

virtual double* vtkGeoCamera::GetOrigin ( ) [virtual]

Get the rectilinear cooridinate location of the origin. This is used to shift the terrain points.

virtual void vtkGeoCamera::GetOrigin ( double ,
double ,
double  
) [virtual]

Get the rectilinear cooridinate location of the origin. This is used to shift the terrain points.

virtual void vtkGeoCamera::GetOrigin ( double  [3]) [virtual]

Get the rectilinear cooridinate location of the origin. This is used to shift the terrain points.

void vtkGeoCamera::SetOrigin ( double  ox,
double  oy,
double  oz 
) [inline]

Get the rectilinear cooridinate location of the origin. This is used to shift the terrain points.

Definition at line 165 of file vtkGeoCamera.h.

void vtkGeoCamera::UpdateVTKCamera ( ) [protected]
void vtkGeoCamera::UpdateAngleRanges ( ) [protected]

Member Data Documentation

Definition at line 179 of file vtkGeoCamera.h.

Definition at line 180 of file vtkGeoCamera.h.

Definition at line 184 of file vtkGeoCamera.h.

Definition at line 185 of file vtkGeoCamera.h.

double vtkGeoCamera::Origin[3] [protected]

Definition at line 186 of file vtkGeoCamera.h.

Definition at line 189 of file vtkGeoCamera.h.

Definition at line 190 of file vtkGeoCamera.h.

Definition at line 191 of file vtkGeoCamera.h.

Definition at line 192 of file vtkGeoCamera.h.

Definition at line 193 of file vtkGeoCamera.h.

bool vtkGeoCamera::LockHeading [protected]

Definition at line 194 of file vtkGeoCamera.h.

Definition at line 198 of file vtkGeoCamera.h.

Definition at line 199 of file vtkGeoCamera.h.

Definition at line 200 of file vtkGeoCamera.h.

double vtkGeoCamera::Aspect[2] [protected]

Definition at line 201 of file vtkGeoCamera.h.

Definition at line 204 of file vtkGeoCamera.h.

Definition at line 205 of file vtkGeoCamera.h.

Definition at line 206 of file vtkGeoCamera.h.

Definition at line 207 of file vtkGeoCamera.h.

Definition at line 209 of file vtkGeoCamera.h.


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