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vtkPerspectiveTransform Class Reference

describes a 4x4 matrix transformation More...

#include <vtkPerspectiveTransform.h>

Inheritance diagram for vtkPerspectiveTransform:
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Collaboration diagram for vtkPerspectiveTransform:
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Public Types

typedef vtkHomogeneousTransform Superclass
 
- Public Types inherited from vtkHomogeneousTransform
typedef vtkAbstractTransform Superclass
 
- Public Types inherited from vtkAbstractTransform
typedef vtkObject Superclass
 

Public Member Functions

virtual int IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class. More...
 
vtkPerspectiveTransformNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
void Identity ()
 Set this transformation to the identity transformation. More...
 
void Inverse () override
 Invert the transformation. More...
 
void AdjustViewport (double oldXMin, double oldXMax, double oldYMin, double oldYMax, double newXMin, double newXMax, double newYMin, double newYMax)
 Perform an adjustment to the viewport coordinates. More...
 
void AdjustZBuffer (double oldNearZ, double oldFarZ, double newNearZ, double newFarZ)
 Perform an adjustment to the Z-Buffer range that the near and far clipping planes map to. More...
 
void Ortho (double xmin, double xmax, double ymin, double ymax, double znear, double zfar)
 Create an orthogonal projection matrix and concatenate it by the current transformation. More...
 
void Frustum (double xmin, double xmax, double ymin, double ymax, double znear, double zfar)
 Create an perspective projection matrix and concatenate it by the current transformation. More...
 
void Perspective (double angle, double aspect, double znear, double zfar)
 Create a perspective projection matrix by specifying the view angle (this angle is in the y direction), the aspect ratio, and the near and far clipping range. More...
 
void Shear (double dxdz, double dydz, double zplane)
 Create a shear transformation about a plane at distance z from the camera. More...
 
void Stereo (double angle, double focaldistance)
 Create a stereo shear matrix and concatenate it with the current transformation. More...
 
void SetupCamera (const double position[3], const double focalpoint[3], const double viewup[3])
 Set a view transformation matrix for the camera (this matrix does not contain any perspective) and concatenate it with the current transformation. More...
 
void SetupCamera (double p0, double p1, double p2, double fp0, double fp1, double fp2, double vup0, double vup1, double vup2)
 
void Concatenate (vtkHomogeneousTransform *transform)
 Concatenate the specified transform with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void PreMultiply ()
 Sets the internal state of the transform to PreMultiply. More...
 
void PostMultiply ()
 Sets the internal state of the transform to PostMultiply. More...
 
int GetNumberOfConcatenatedTransforms ()
 Get the total number of transformations that are linked into this one via Concatenate() operations or via SetInput(). More...
 
int GetInverseFlag ()
 Get the inverse flag of the transformation. More...
 
vtkAbstractTransformMakeTransform () override
 Make a new transform of the same type – you are responsible for deleting the transform when you are done with it. More...
 
int CircuitCheck (vtkAbstractTransform *transform) override
 Check for self-reference. More...
 
vtkMTimeType GetMTime () override
 Override GetMTime to account for input and concatenation. More...
 
void Translate (double x, double y, double z)
 Create a translation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void Translate (const double x[3])
 Create a translation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void Translate (const float x[3])
 Create a translation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void RotateWXYZ (double angle, double x, double y, double z)
 Create a rotation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void RotateWXYZ (double angle, const double axis[3])
 Create a rotation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void RotateWXYZ (double angle, const float axis[3])
 Create a rotation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void RotateX (double angle)
 Create a rotation matrix about the X, Y, or Z axis and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void RotateY (double angle)
 Create a rotation matrix about the X, Y, or Z axis and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void RotateZ (double angle)
 Create a rotation matrix about the X, Y, or Z axis and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void Scale (double x, double y, double z)
 Create a scale matrix (i.e. More...
 
void Scale (const double s[3])
 Create a scale matrix (i.e. More...
 
void Scale (const float s[3])
 Create a scale matrix (i.e. More...
 
void SetMatrix (vtkMatrix4x4 *matrix)
 Set the current matrix directly. More...
 
void SetMatrix (const double elements[16])
 Set the current matrix directly. More...
 
void Concatenate (vtkMatrix4x4 *matrix)
 Concatenates the matrix with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
void Concatenate (const double elements[16])
 Concatenates the matrix with the current transformation according to PreMultiply or PostMultiply semantics. More...
 
vtkHomogeneousTransformGetConcatenatedTransform (int i)
 Get one of the concatenated transformations as a vtkAbstractTransform. More...
 
void SetInput (vtkHomogeneousTransform *input)
 Set the input for this transformation. More...
 
vtkHomogeneousTransformGetInput ()
 Set the input for this transformation. More...
 
void Push ()
 Pushes the current transformation onto the transformation stack. More...
 
void Pop ()
 Deletes the transformation on the top of the stack and sets the top to the next transformation on the stack. More...
 
- Public Member Functions inherited from vtkHomogeneousTransform
vtkHomogeneousTransformNewInstance () const
 
void TransformPoints (vtkPoints *inPts, vtkPoints *outPts) override
 Apply the transformation to a series of points, and append the results to outPts. More...
 
void TransformPointsNormalsVectors (vtkPoints *inPts, vtkPoints *outPts, vtkDataArray *inNms, vtkDataArray *outNms, vtkDataArray *inVrs, vtkDataArray *outVrs) override
 Apply the transformation to a combination of points, normals and vectors. More...
 
void GetMatrix (vtkMatrix4x4 *m)
 Get a copy of the internal transformation matrix. More...
 
vtkMatrix4x4GetMatrix ()
 Get a pointer to an internal vtkMatrix4x4 that represents the transformation. More...
 
vtkHomogeneousTransformGetHomogeneousInverse ()
 Just like GetInverse(), but includes typecast to vtkHomogeneousTransform. More...
 
void InternalTransformPoint (const float in[3], float out[3]) override
 This will calculate the transformation without calling Update. More...
 
void InternalTransformPoint (const double in[3], double out[3]) override
 This will calculate the transformation without calling Update. More...
 
void InternalTransformDerivative (const float in[3], float out[3], float derivative[3][3]) override
 This will calculate the transformation as well as its derivative without calling Update. More...
 
void InternalTransformDerivative (const double in[3], double out[3], double derivative[3][3]) override
 This will calculate the transformation as well as its derivative without calling Update. More...
 
- Public Member Functions inherited from vtkAbstractTransform
vtkAbstractTransformNewInstance () const
 
void TransformPoint (const float in[3], float out[3])
 Apply the transformation to a coordinate. More...
 
void TransformPoint (const double in[3], double out[3])
 Apply the transformation to a double-precision coordinate. More...
 
doubleTransformPoint (double x, double y, double z)
 Apply the transformation to a double-precision coordinate. More...
 
doubleTransformPoint (const double point[3])
 
doubleTransformNormalAtPoint (const double point[3], const double normal[3])
 
doubleTransformVectorAtPoint (const double point[3], const double vector[3])
 
vtkAbstractTransformGetInverse ()
 Get the inverse of this transform. More...
 
void SetInverse (vtkAbstractTransform *transform)
 Set a transformation that this transform will be the inverse of. More...
 
void DeepCopy (vtkAbstractTransform *)
 Copy this transform from another of the same type. More...
 
void Update ()
 Update the transform to account for any changes which have been made. More...
 
void UnRegister (vtkObjectBase *O) override
 Needs a special UnRegister() implementation to avoid circular references. More...
 
floatTransformFloatPoint (float x, float y, float z)
 Apply the transformation to an (x,y,z) coordinate. More...
 
floatTransformFloatPoint (const float point[3])
 Apply the transformation to an (x,y,z) coordinate. More...
 
doubleTransformDoublePoint (double x, double y, double z)
 Apply the transformation to a double-precision (x,y,z) coordinate. More...
 
doubleTransformDoublePoint (const double point[3])
 Apply the transformation to a double-precision (x,y,z) coordinate. More...
 
void TransformNormalAtPoint (const float point[3], const float in[3], float out[3])
 Apply the transformation to a normal at the specified vertex. More...
 
void TransformNormalAtPoint (const double point[3], const double in[3], double out[3])
 Apply the transformation to a normal at the specified vertex. More...
 
doubleTransformDoubleNormalAtPoint (const double point[3], const double normal[3])
 Apply the transformation to a double-precision normal at the specified vertex. More...
 
floatTransformFloatNormalAtPoint (const float point[3], const float normal[3])
 Apply the transformation to a single-precision normal at the specified vertex. More...
 
void TransformVectorAtPoint (const float point[3], const float in[3], float out[3])
 Apply the transformation to a vector at the specified vertex. More...
 
void TransformVectorAtPoint (const double point[3], const double in[3], double out[3])
 Apply the transformation to a vector at the specified vertex. More...
 
doubleTransformDoubleVectorAtPoint (const double point[3], const double vector[3])
 Apply the transformation to a double-precision vector at the specified vertex. More...
 
floatTransformFloatVectorAtPoint (const float point[3], const float vector[3])
 Apply the transformation to a single-precision vector at the specified vertex. More...
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on. More...
 
virtual void DebugOff ()
 Turn debugging output off. More...
 
bool GetDebug ()
 Get the value of the debug flag. More...
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag. More...
 
virtual void Modified ()
 Update the modification time for this object. More...
 
void RemoveObserver (unsigned long tag)
 
void RemoveObservers (unsigned long event)
 
void RemoveObservers (const char *event)
 
void RemoveAllObservers ()
 
int HasObserver (unsigned long event)
 
int HasObserver (const char *event)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
vtkCommandGetCommand (unsigned long tag)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObserver (vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObservers (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
void RemoveObservers (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
int HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
int HasObserver (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
 Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 Allow user to set the AbortFlagOn() with the return value of the callback method. More...
 
int InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not. More...
 
int InvokeEvent (const char *event, void *callData)
 This method invokes an event and return whether the event was aborted or not. More...
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string. More...
 
virtual void Delete ()
 Delete a VTK object. More...
 
virtual void FastDelete ()
 Delete a reference to this object. More...
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream. More...
 
virtual void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object). More...
 
int GetReferenceCount ()
 Return the current reference count of this object. More...
 
void SetReferenceCount (int)
 Sets the reference count. More...
 
void PrintRevisions (ostream &)
 Legacy. More...
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses. More...
 

Static Public Member Functions

static vtkPerspectiveTransformNew ()
 
static int IsTypeOf (const char *type)
 
static vtkPerspectiveTransformSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkHomogeneousTransform
static int IsTypeOf (const char *type)
 
static vtkHomogeneousTransformSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkAbstractTransform
static int IsTypeOf (const char *type)
 
static vtkAbstractTransformSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes. More...
 
static void SetGlobalWarningDisplay (int val)
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static void GlobalWarningDisplayOn ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static void GlobalWarningDisplayOff ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static int GetGlobalWarningDisplay ()
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
- Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool IsTypeOf (const char *name)
 Return 1 if this class type is the same type of (or a subclass of) the named class. More...
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkPerspectiveTransform ()
 
 ~vtkPerspectiveTransform () override
 
void InternalDeepCopy (vtkAbstractTransform *t) override
 Perform any subclass-specific DeepCopy. More...
 
void InternalUpdate () override
 Perform any subclass-specific Update. More...
 
- Protected Member Functions inherited from vtkHomogeneousTransform
 vtkHomogeneousTransform ()
 
 ~vtkHomogeneousTransform () override
 
- Protected Member Functions inherited from vtkAbstractTransform
 vtkAbstractTransform ()
 
 ~vtkAbstractTransform () override
 
- Protected Member Functions inherited from vtkObject
 vtkObject ()
 
 ~vtkObject () override
 
void RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
 These methods allow a command to exclusively grab all events. More...
 
void InternalReleaseFocus ()
 These methods allow a command to exclusively grab all events. More...
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void CollectRevisions (ostream &)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

vtkHomogeneousTransformInput
 
vtkTransformConcatenationConcatenation
 
vtkTransformConcatenationStackStack
 
- Protected Attributes inherited from vtkHomogeneousTransform
vtkMatrix4x4Matrix
 
- Protected Attributes inherited from vtkAbstractTransform
float InternalFloatPoint [3]
 
double InternalDoublePoint [3]
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Detailed Description

describes a 4x4 matrix transformation

A vtkPerspectiveTransform can be used to describe the full range of homogeneous transformations. It was designed in particular to describe a camera-view of a scene.

The order in which you set up the display coordinates (via AdjustZBuffer() and AdjustViewport()), the projection (via Perspective(), Frustum(), or Ortho()) and the camera view (via SetupCamera()) are important. If the transform is in PreMultiply mode, which is the default, set the Viewport and ZBuffer first, then the projection, and finally the camera view. Once the view is set up, the Translate and Rotate methods can be used to move the camera around in world coordinates. If the Oblique() or Stereo() methods are used, they should be called just before SetupCamera().

In PostMultiply mode, you must perform all transformations in the opposite order. This is necessary, for example, if you already have a perspective transformation set up but must adjust the viewport. Another example is if you have a view transformation, and wish to perform translations and rotations in the camera's coordinate system rather than in world coordinates.

The SetInput and Concatenate methods can be used to create a transformation pipeline with vtkPerspectiveTransform. See vtkTransform for more information on the transformation pipeline.

See also
vtkGeneralTransform vtkTransform vtkMatrix4x4 vtkCamera
Tests:
vtkPerspectiveTransform (Tests)

Definition at line 56 of file vtkPerspectiveTransform.h.

Member Typedef Documentation

Definition at line 60 of file vtkPerspectiveTransform.h.

Constructor & Destructor Documentation

vtkPerspectiveTransform::vtkPerspectiveTransform ( )
protected
vtkPerspectiveTransform::~vtkPerspectiveTransform ( )
overrideprotected

Member Function Documentation

static vtkPerspectiveTransform* vtkPerspectiveTransform::New ( )
static
static int vtkPerspectiveTransform::IsTypeOf ( const char *  type)
static
virtual int vtkPerspectiveTransform::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 vtkHomogeneousTransform.

static vtkPerspectiveTransform* vtkPerspectiveTransform::SafeDownCast ( vtkObjectBase o)
static
virtual vtkObjectBase* vtkPerspectiveTransform::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkHomogeneousTransform.

vtkPerspectiveTransform* vtkPerspectiveTransform::NewInstance ( ) const
void vtkPerspectiveTransform::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
overridevirtual

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 vtkHomogeneousTransform.

void vtkPerspectiveTransform::Identity ( )
inline

Set this transformation to the identity transformation.

If the transform has an Input, then the transformation will be reset so that it is the same as the Input.

Definition at line 68 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Inverse ( )
inlineoverridevirtual

Invert the transformation.

This will also set a flag so that the transformation will use the inverse of its Input, if an Input has been set.

Implements vtkAbstractTransform.

Definition at line 75 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::AdjustViewport ( double  oldXMin,
double  oldXMax,
double  oldYMin,
double  oldYMax,
double  newXMin,
double  newXMax,
double  newYMin,
double  newYMax 
)

Perform an adjustment to the viewport coordinates.

By default Ortho, Frustum, and Perspective provide a window of ([-1,+1],[-1,+1]). In PreMultiply mode, you call this method before calling Ortho, Frustum, or Perspective. In PostMultiply mode you can call it after. Note that if you must apply both AdjustZBuffer and AdjustViewport, it makes no difference which order you apply them in.

void vtkPerspectiveTransform::AdjustZBuffer ( double  oldNearZ,
double  oldFarZ,
double  newNearZ,
double  newFarZ 
)

Perform an adjustment to the Z-Buffer range that the near and far clipping planes map to.

By default Ortho, Frustum, and Perspective map the near clipping plane to -1 and the far clipping plane to +1. In PreMultiply mode, you call this method before calling Ortho, Frustum, or Perspective. In PostMultiply mode you can call it after.

void vtkPerspectiveTransform::Ortho ( double  xmin,
double  xmax,
double  ymin,
double  ymax,
double  znear,
double  zfar 
)

Create an orthogonal projection matrix and concatenate it by the current transformation.

The matrix maps [xmin,xmax], [ymin,ymax], [-znear,-zfar] to [-1,+1], [-1,+1], [+1,-1].

void vtkPerspectiveTransform::Frustum ( double  xmin,
double  xmax,
double  ymin,
double  ymax,
double  znear,
double  zfar 
)

Create an perspective projection matrix and concatenate it by the current transformation.

The matrix maps a frustum with a back plane at -zfar and a front plane at -znear with extent [xmin,xmax],[ymin,ymax] to [-1,+1], [-1,+1], [+1,-1].

void vtkPerspectiveTransform::Perspective ( double  angle,
double  aspect,
double  znear,
double  zfar 
)

Create a perspective projection matrix by specifying the view angle (this angle is in the y direction), the aspect ratio, and the near and far clipping range.

The projection matrix is concatenated with the current transformation. This method works via Frustum.

void vtkPerspectiveTransform::Shear ( double  dxdz,
double  dydz,
double  zplane 
)

Create a shear transformation about a plane at distance z from the camera.

The values dxdz (i.e. dx/dz) and dydz specify the amount of shear in the x and y directions. The 'zplane' specifies the distance from the camera to the plane at which the shear causes zero displacement. Generally you want this plane to be the focal plane. This transformation can be used in combination with Ortho to create an oblique projection. It can also be used in combination with Perspective to provide correct stereo views when the eye is at arbitrary but known positions relative to the center of a flat viewing screen.

void vtkPerspectiveTransform::Stereo ( double  angle,
double  focaldistance 
)

Create a stereo shear matrix and concatenate it with the current transformation.

This can be applied in conjunction with either a perspective transformation (via Frustum or Projection) or an orthographic projection. You must specify the distance from the camera plane to the focal plane, and the angle between the distance vector and the eye. The angle should be negative for the left eye, and positive for the right. This method works via Oblique.

void vtkPerspectiveTransform::SetupCamera ( const double  position[3],
const double  focalpoint[3],
const double  viewup[3] 
)

Set a view transformation matrix for the camera (this matrix does not contain any perspective) and concatenate it with the current transformation.

void vtkPerspectiveTransform::SetupCamera ( double  p0,
double  p1,
double  p2,
double  fp0,
double  fp1,
double  fp2,
double  vup0,
double  vup1,
double  vup2 
)
void vtkPerspectiveTransform::Translate ( double  x,
double  y,
double  z 
)
inline

Create a translation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 170 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Translate ( const double  x[3])
inline

Create a translation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 172 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Translate ( const float  x[3])
inline

Create a translation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 173 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::RotateWXYZ ( double  angle,
double  x,
double  y,
double  z 
)
inline

Create a rotation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

The angle is in degrees, and (x,y,z) specifies the axis that the rotation will be performed around.

Definition at line 183 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::RotateWXYZ ( double  angle,
const double  axis[3] 
)
inline

Create a rotation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

The angle is in degrees, and (x,y,z) specifies the axis that the rotation will be performed around.

Definition at line 185 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::RotateWXYZ ( double  angle,
const float  axis[3] 
)
inline

Create a rotation matrix and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

The angle is in degrees, and (x,y,z) specifies the axis that the rotation will be performed around.

Definition at line 187 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::RotateX ( double  angle)
inline

Create a rotation matrix about the X, Y, or Z axis and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

The angle is expressed in degrees.

Definition at line 197 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::RotateY ( double  angle)
inline

Create a rotation matrix about the X, Y, or Z axis and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

The angle is expressed in degrees.

Definition at line 198 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::RotateZ ( double  angle)
inline

Create a rotation matrix about the X, Y, or Z axis and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

The angle is expressed in degrees.

Definition at line 199 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Scale ( double  x,
double  y,
double  z 
)
inline

Create a scale matrix (i.e.

set the diagonal elements to x, y, z) and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 208 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Scale ( const double  s[3])
inline

Create a scale matrix (i.e.

set the diagonal elements to x, y, z) and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 210 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Scale ( const float  s[3])
inline

Create a scale matrix (i.e.

set the diagonal elements to x, y, z) and concatenate it with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 211 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::SetMatrix ( vtkMatrix4x4 matrix)
inline

Set the current matrix directly.

This actually calls Identity(), followed by Concatenate(matrix).

Definition at line 219 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::SetMatrix ( const double  elements[16])
inline

Set the current matrix directly.

This actually calls Identity(), followed by Concatenate(matrix).

Definition at line 221 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Concatenate ( vtkMatrix4x4 matrix)
inline

Concatenates the matrix with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 230 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Concatenate ( const double  elements[16])
inline

Concatenates the matrix with the current transformation according to PreMultiply or PostMultiply semantics.

Definition at line 232 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Concatenate ( vtkHomogeneousTransform transform)

Concatenate the specified transform with the current transformation according to PreMultiply or PostMultiply semantics.

The concatenation is pipelined, meaning that if any of the transformations are changed, even after Concatenate() is called, those changes will be reflected when you call TransformPoint().

void vtkPerspectiveTransform::PreMultiply ( )
inline

Sets the internal state of the transform to PreMultiply.

All subsequent operations will occur before those already represented in the current transformation. In homogeneous matrix notation, M = M*A where M is the current transformation matrix and A is the applied matrix. The default is PreMultiply.

Definition at line 252 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::PostMultiply ( )
inline

Sets the internal state of the transform to PostMultiply.

All subsequent operations will occur after those already represented in the current transformation. In homogeneous matrix notation, M = A*M where M is the current transformation matrix and A is the applied matrix. The default is PreMultiply.

Definition at line 263 of file vtkPerspectiveTransform.h.

int vtkPerspectiveTransform::GetNumberOfConcatenatedTransforms ( )
inline

Get the total number of transformations that are linked into this one via Concatenate() operations or via SetInput().

Definition at line 271 of file vtkPerspectiveTransform.h.

vtkHomogeneousTransform* vtkPerspectiveTransform::GetConcatenatedTransform ( int  i)
inline

Get one of the concatenated transformations as a vtkAbstractTransform.

These transformations are applied, in series, every time the transformation of a coordinate occurs. This method is provided to make it possible to decompose a transformation into its constituents, for example to save a transformation to a file.

Definition at line 283 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::SetInput ( vtkHomogeneousTransform input)

Set the input for this transformation.

This will be used as the base transformation if it is set. This method allows you to build a transform pipeline: if the input is modified, then this transformation will automatically update accordingly. Note that the InverseFlag, controlled via Inverse(), determines whether this transformation will use the Input or the inverse of the Input.

vtkHomogeneousTransform* vtkPerspectiveTransform::GetInput ( )
inline

Set the input for this transformation.

This will be used as the base transformation if it is set. This method allows you to build a transform pipeline: if the input is modified, then this transformation will automatically update accordingly. Note that the InverseFlag, controlled via Inverse(), determines whether this transformation will use the Input or the inverse of the Input.

Definition at line 320 of file vtkPerspectiveTransform.h.

int vtkPerspectiveTransform::GetInverseFlag ( )
inline

Get the inverse flag of the transformation.

This controls whether it is the Input or the inverse of the Input that is used as the base transformation. The InverseFlag is flipped every time Inverse() is called. The InverseFlag is off when a transform is first created.

Definition at line 330 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Push ( )
inline

Pushes the current transformation onto the transformation stack.

Definition at line 337 of file vtkPerspectiveTransform.h.

void vtkPerspectiveTransform::Pop ( )
inline

Deletes the transformation on the top of the stack and sets the top to the next transformation on the stack.

Definition at line 348 of file vtkPerspectiveTransform.h.

vtkAbstractTransform* vtkPerspectiveTransform::MakeTransform ( )
overridevirtual

Make a new transform of the same type – you are responsible for deleting the transform when you are done with it.

Implements vtkAbstractTransform.

int vtkPerspectiveTransform::CircuitCheck ( vtkAbstractTransform transform)
overridevirtual

Check for self-reference.

Will return true if concatenating with the specified transform, setting it to be our inverse, or setting it to be our input will create a circular reference. CircuitCheck is automatically called by SetInput(), SetInverse(), and Concatenate(vtkXTransform *). Avoid using this function, it is experimental.

Reimplemented from vtkAbstractTransform.

vtkMTimeType vtkPerspectiveTransform::GetMTime ( )
overridevirtual

Override GetMTime to account for input and concatenation.

Reimplemented from vtkAbstractTransform.

void vtkPerspectiveTransform::InternalDeepCopy ( vtkAbstractTransform )
overrideprotectedvirtual

Perform any subclass-specific DeepCopy.

Reimplemented from vtkHomogeneousTransform.

void vtkPerspectiveTransform::InternalUpdate ( )
overrideprotectedvirtual

Perform any subclass-specific Update.

Reimplemented from vtkAbstractTransform.

Member Data Documentation

vtkHomogeneousTransform* vtkPerspectiveTransform::Input
protected

Definition at line 381 of file vtkPerspectiveTransform.h.

vtkTransformConcatenation* vtkPerspectiveTransform::Concatenation
protected

Definition at line 382 of file vtkPerspectiveTransform.h.

vtkTransformConcatenationStack* vtkPerspectiveTransform::Stack
protected

Definition at line 383 of file vtkPerspectiveTransform.h.


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