#include <ossimImageViewTransform.h>

Inheritance diagram for ossimImageViewTransform:

Public Member Functions
	ossimImageViewTransform ()

virtual void	forward (const ossimDpt &input, ossimDpt &output) const

virtual void	inverse (const ossimDpt &input, ossimDpt &output) const

virtual bool	isIdentity () const =0

virtual bool	isValid () const =0

virtual ossimDpt	getInputMetersPerPixel () const =0

virtual ossimDpt	getOutputMetersPerPixel () const =0

virtual void	getImageToViewScale (ossimDpt &resultScale, const ossimDpt &imagePoint, const ossimDpt &deltaImagePointXY) const

virtual void	getViewToImageScale (ossimDpt &resultScale, const ossimDpt &imagePoint, const ossimDpt &deltaImagePointXY) const

virtual void	imageToView (const ossimDpt &imagePoint, ossimDpt &viewPoint) const

virtual void	viewToImage (const ossimDpt &viewPoint, ossimDpt &imagePoint) const

virtual std::ostream &	print (std::ostream &out) const
	Generic print method. More...

ossimDpt	imageToView (const ossimDpt &imagePoint) const

ossimDpt	viewToImage (const ossimDpt &viewPoint) const

virtual void	getScaleChangeImageToView (ossimDpt &result, const ossimDrect &imageRect)

virtual void	getScaleChangeViewToImage (ossimDpt &result, const ossimDrect &viewRect)

virtual void	getRoundTripErrorView (ossimDpt &result, const ossimDpt &viewPt) const

virtual ossimDpt	getRoundTripErrorView (const ossimDpt &viewPt) const

virtual void	getRoundTripErrorImage (ossimDpt &result, const ossimDpt &imagePt) const

virtual ossimDpt	getRoundTripErrorImage (const ossimDpt &imagePt) const

virtual ossimDrect	getImageToViewBounds (const ossimDrect &imageRect) const
	Computes the bounding rect in view space of the quad formed by the transformed image points of the input rect corners. More...

virtual ossimDrect	getViewToImageBounds (const ossimDrect &viewRect) const
	Computes the bounding rect in image space of the quad formed by the transformed view points of the input rect corners. More...

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const

Public Member Functions inherited from ossim2dTo2dTransform
virtual void	forward (ossimDpt &modify_this) const

virtual void	inverse (ossimDpt &modify_this) const

virtual const ossim2dTo2dTransform &	operator= (const ossim2dTo2dTransform &rhs)

virtual ossimDpt	getOrigin () const

void	setConvergenceThreshold (const double &new_threshold)

void	setMaxIterations (int new_max_iters)

void	setDxDy (const ossimDpt &dxdy)

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

virtual ossimObject *	dup () const

virtual ossimString	getShortName () const

virtual ossimString	getLongName () const

virtual ossimString	getDescription () const

virtual ossimString	getClassName () const

virtual RTTItypeid	getType () const

virtual bool	canCastTo (ossimObject *obj) const

virtual bool	canCastTo (const RTTItypeid &id) const

virtual bool	canCastTo (const ossimString &parentClassName) const

virtual bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const

virtual void	accept (ossimVisitor &visitor)

Public Member Functions inherited from ossimReferenced
	ossimReferenced ()

	ossimReferenced (const ossimReferenced &)

ossimReferenced &	operator= (const ossimReferenced &)

void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...

void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...

int	referenceCount () const

Public Member Functions inherited from ossimViewInterface
	ossimViewInterface ()

	ossimViewInterface (ossimObject *base)

virtual	~ossimViewInterface ()

virtual bool	setView (ossimObject *baseObject)=0

virtual ossimObject *	getView ()=0

virtual const ossimObject *	getView () const =0

virtual void	refreshView ()

ossimObject *	getBaseObject ()

Friends
OSSIMDLLEXPORT ostream &	operator<< (ostream &out, const ossimImageViewTransform &data)

Additional Inherited Members
Protected Member Functions inherited from ossim2dTo2dTransform
	ossim2dTo2dTransform ()

virtual	~ossim2dTo2dTransform ()

Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Attributes inherited from ossim2dTo2dTransform
double	theConvergenceThreshold

int	theMaxIterations

ossimDpt	theDxDy

Protected Attributes inherited from ossimViewInterface
ossimObject *	theObject

Detailed Description

Definition at line 25 of file ossimImageViewTransform.h.

Constructor & Destructor Documentation

◆ ossimImageViewTransform()

ossimImageViewTransform::ossimImageViewTransform ( )

Definition at line 9 of file ossimImageViewTransform.cpp.

References ossimViewInterface::theObject.

     :
        ossim2dTo2dTransform(),
        ossimViewInterface(NULL)
 {
    ossimViewInterface::theObject = this;
 }

Member Function Documentation

◆ forward()

void ossimImageViewTransform::forward	(	const ossimDpt &	input,
		ossimDpt &	output
	)		const

virtual

Implements ossim2dTo2dTransform.

Definition at line 17 of file ossimImageViewTransform.cpp.

References imageToView().

 {
    imageToView(input, output);
 }

◆ getImageToViewBounds()

ossimDrect ossimImageViewTransform::getImageToViewBounds ( const ossimDrect & imageRect ) const

virtual

Computes the bounding rect in view space of the quad formed by the transformed image points of the input rect corners.

Reimplemented in ossimImageViewProjectionTransform.

Definition at line 294 of file ossimImageViewTransform.cpp.

References imageToView(), ossimDrect::ll(), ossimDrect::lr(), ossimDrect::ul(), and ossimDrect::ur().

Referenced by ossimImageViewProjectionTransform::getImageToViewBounds(), and ossimImageRenderer::initializeBoundingRects().

 {
    ossimDpt p1;
    ossimDpt p2;
    ossimDpt p3;
    ossimDpt p4;
 
    imageToView(imageRect.ul(), p1);
    imageToView(imageRect.ur(), p2);
    imageToView(imageRect.lr(), p3);
    imageToView(imageRect.ll(), p4);
 
    return ossimDrect(p1, p2, p3, p4);
 }

◆ getImageToViewScale()

void ossimImageViewTransform::getImageToViewScale	(	ossimDpt &	resultScale,
		const ossimDpt &	imagePoint,
		const ossimDpt &	deltaImagePointXY
	)		const

virtual

If it needs to it will use the information passed in to get the scae factor by transforming the line point.x to point.x+deltaXY and point.y to point.y + deltaXY.y. It will comput new delta's and set the ratio of deltaXY/newDeltaXY to the result scale.
Derived classes can overide this default implementation. Note: if the scale changes are only subpixel then it will return a scale of one. We have to see how this works before we actually keep this implementation.

Definition at line 214 of file ossimImageViewTransform.cpp.

References FLT_EPSILON, imageToView(), ossimDpt::x, and ossimDpt::y.

 {
   ossimDpt p1 = imagePoint;
   ossimDpt p2(imagePoint.x + deltaImagePointXY.x,
           imagePoint.y);
   ossimDpt p3(imagePoint.x,
           imagePoint.y + deltaImagePointXY.y);
   
   ossimDpt transformedP1;
   ossimDpt transformedP2;
   ossimDpt transformedP3;
 
   imageToView(p1, transformedP1);
   imageToView(p2, transformedP2);
   imageToView(p3, transformedP3);
 
   ossimDpt deltaP1P2 = transformedP1 - transformedP2;
   ossimDpt deltaP1P3 = transformedP1 - transformedP3;
  
   // now compute the distances.
   double sumSquaredSqrtP1P2 = sqrt((deltaP1P2.x*deltaP1P2.x) +
                    (deltaP1P2.y*deltaP1P2.y));
   double sumSquaredSqrtP1P3 = sqrt((deltaP1P3.x*deltaP1P3.x) +
                    (deltaP1P3.y*deltaP1P3.y));
 
   resultScale.x = 0;
   resultScale.y = 0;
 
   if(sumSquaredSqrtP1P2 > FLT_EPSILON)
     {
       resultScale.x = sumSquaredSqrtP1P2/deltaImagePointXY.x;
     }
   if(sumSquaredSqrtP1P3 > FLT_EPSILON)
     {
       resultScale.y = sumSquaredSqrtP1P3/deltaImagePointXY.y;
     }
 }

◆ getInputMetersPerPixel()

virtual ossimDpt ossimImageViewTransform::getInputMetersPerPixel ( ) const

pure virtual

Implemented in ossimImageViewProjectionTransform, and ossimImageViewAffineTransform.

◆ getOutputMetersPerPixel()

virtual ossimDpt ossimImageViewTransform::getOutputMetersPerPixel ( ) const

pure virtual

Implemented in ossimImageViewProjectionTransform, and ossimImageViewAffineTransform.

◆ getRoundTripErrorImage() [1/2]

void ossimImageViewTransform::getRoundTripErrorImage	(	ossimDpt &	result,
		const ossimDpt &	imagePt
	)		const

virtual

Definition at line 92 of file ossimImageViewTransform.cpp.

References ossimDpt::hasNans(), imageToView(), ossimDpt::makeNan(), and viewToImage().

 {
   ossimDpt ipt;
   ossimDpt vpt;
   imageToView(imagePt, vpt);
   if(vpt.hasNans())
   {
     ipt.makeNan();
   }
   else
   {
     viewToImage(vpt, ipt);
   }
 
   if(ipt.hasNans())
   {
     result.makeNan();
   }
   else
   {
     result = imagePt-ipt;
   }
 
 //   result = ossimDpt(0,0);
 }

◆ getRoundTripErrorImage() [2/2]

ossimDpt ossimImageViewTransform::getRoundTripErrorImage ( const ossimDpt & imagePt ) const

virtual

Definition at line 119 of file ossimImageViewTransform.cpp.

References getRoundTripErrorView().

 {
    ossimDpt result;
    getRoundTripErrorView(result, imagePt);
    return result;
 }

◆ getRoundTripErrorView() [1/2]

void ossimImageViewTransform::getRoundTripErrorView	(	ossimDpt &	result,
		const ossimDpt &	viewPt
	)		const

virtual

Definition at line 59 of file ossimImageViewTransform.cpp.

References ossimDpt::hasNans(), imageToView(), ossimDpt::makeNan(), and viewToImage().

Referenced by getRoundTripErrorImage(), and getRoundTripErrorView().

 {
   ossimDpt ipt;
   ossimDpt vpt;
   viewToImage(viewPt, ipt);
   if(ipt.hasNans())
   {
     vpt.makeNan();
   }
   else
   {
     imageToView(ipt, vpt);
   }
 
   if(vpt.hasNans())
   {
     result.makeNan();
   }
   else
   {
     result = viewPt-vpt;
   }
  //  result = ossimDpt(0,0);
 }

◆ getRoundTripErrorView() [2/2]

ossimDpt ossimImageViewTransform::getRoundTripErrorView ( const ossimDpt & viewPt ) const

virtual

Definition at line 85 of file ossimImageViewTransform.cpp.

References getRoundTripErrorView().

 {
    ossimDpt result;
    getRoundTripErrorView(result, viewPt);
    return result;
 }

◆ getScaleChangeImageToView()

void ossimImageViewTransform::getScaleChangeImageToView	(	ossimDpt &	result,
		const ossimDrect &	imageRect
	)

virtual

This should compute output/input.

Definition at line 138 of file ossimImageViewTransform.cpp.

References ossimDpt::hasNans(), ossimDrect::hasNans(), ossimDrect::height(), imageToView(), ossimDrect::ll(), ossimDrect::lr(), ossimDpt::makeNan(), ossimDrect::ul(), ossimDrect::ur(), ossimDrect::width(), ossimDpt::x, and ossimDpt::y.

 {
    result.makeNan();
    if(!imageRect.hasNans())
    {
       ossimDpt vul;
       ossimDpt vur;
       ossimDpt vlr;
       ossimDpt vll;
 
       imageToView(imageRect.ul(),
                   vul);
       imageToView(imageRect.ur(),
                   vur);
       imageToView(imageRect.lr(),
                   vlr);
       imageToView(imageRect.ll(),
                   vll);
 
       if(!vul.hasNans()&&
          !vur.hasNans()&&
          !vlr.hasNans()&&
          !vll.hasNans())
       {
          
          double deltaTop    = (vul - vur).length();
          double deltaBottom = (vll - vlr).length();
          double deltaRight  = (vur - vlr).length();
          
          double w = imageRect.width();
          double h = imageRect.height();
          result.x = (deltaTop/w + deltaBottom/w)*.5;
          result.y = (deltaRight/h + deltaRight/h)*.5;
       }
    }
 }

◆ getScaleChangeViewToImage()

void ossimImageViewTransform::getScaleChangeViewToImage	(	ossimDpt &	result,
		const ossimDrect &	viewRect
	)

virtual

This should compute output/input.

Definition at line 176 of file ossimImageViewTransform.cpp.

References ossimDpt::hasNans(), ossimDrect::hasNans(), ossimDrect::height(), imageToView(), ossimDrect::ll(), ossimDrect::lr(), ossimDpt::makeNan(), ossimDrect::ul(), ossimDrect::ur(), ossimDrect::width(), ossimDpt::x, and ossimDpt::y.

 {
    result.makeNan();
    if(!viewRect.hasNans())
    {
       ossimDpt iul;
       ossimDpt iur;
       ossimDpt ilr;
       ossimDpt ill;
 
       imageToView(viewRect.ul(),
                   iul);
       imageToView(viewRect.ur(),
                   iur);
       imageToView(viewRect.lr(),
                   ilr);
       imageToView(viewRect.ll(),
                   ill);
 
       if(!iul.hasNans()&&
          !iur.hasNans()&&
          !ilr.hasNans()&&
          !ill.hasNans())
       {
          
          double deltaTop    = (iul - iur).length();
          double deltaBottom = (ill - ilr).length();
          double deltaRight  = (iur - ilr).length();
          
          double w = viewRect.width();
          double h = viewRect.height();
          result.x = (deltaTop/w + deltaBottom/w)*.5;
          result.y = (deltaRight/h + deltaRight/h)*.5;
       }
    }
 }

◆ getViewToImageBounds()

ossimDrect ossimImageViewTransform::getViewToImageBounds ( const ossimDrect & viewRect ) const

virtual

Computes the bounding rect in image space of the quad formed by the transformed view points of the input rect corners.

Definition at line 309 of file ossimImageViewTransform.cpp.

References ossimDrect::ll(), ossimDrect::lr(), ossimDrect::ul(), ossimDrect::ur(), and viewToImage().

 {
    ossimDpt p1;
    ossimDpt p2;
    ossimDpt p3;
    ossimDpt p4;
 
    viewToImage(viewRect.ul(), p1);
    viewToImage(viewRect.ur(), p2);
    viewToImage(viewRect.lr(), p3);
    viewToImage(viewRect.ll(), p4);
 
    return ossimDrect(p1, p2, p3, p4);
 }

◆ getViewToImageScale()

void ossimImageViewTransform::getViewToImageScale	(	ossimDpt &	resultScale,
		const ossimDpt &	imagePoint,
		const ossimDpt &	deltaImagePointXY
	)		const

virtual

If it needs to it will use the information passed in to get the scae factor by transforming the line point.x to point.x+deltaXY and point.y to point.y + deltaXY.y. It will comput new delta's and set the ratio of deltaXY/newDeltaXY to the result scale.
Derived classes can overide this default implementation. Note: if the scale changes are only subpixel then it will return a scale of one. We have to see how this works before we actually keep this implementation.

Definition at line 254 of file ossimImageViewTransform.cpp.

References FLT_EPSILON, viewToImage(), ossimDpt::x, and ossimDpt::y.

 {
   ossimDpt p1 = viewPoint;
   ossimDpt p2(viewPoint.x + deltaViewPointXY.x,
           viewPoint.y);
   ossimDpt p3(viewPoint.x,
           viewPoint.y + deltaViewPointXY.y);
 
   ossimDpt transformedP1;
   ossimDpt transformedP2;
   ossimDpt transformedP3;
 
   viewToImage(p1, transformedP1);
   viewToImage(p2, transformedP2);
   viewToImage(p3, transformedP3);
 
   ossimDpt deltaP1P2 = transformedP1 - transformedP2;
   ossimDpt deltaP1P3 = transformedP1 - transformedP3;
 
   // now compute the distances.
   double sumSquaredSqrtP1P2 = sqrt((deltaP1P2.x*deltaP1P2.x) +
                                    (deltaP1P2.y*deltaP1P2.y));
   double sumSquaredSqrtP1P3 = sqrt((deltaP1P3.x*deltaP1P3.x) +
                                    (deltaP1P3.y*deltaP1P3.y));
 
   resultScale.x = 0;
   resultScale.y = 0;
 
   if(sumSquaredSqrtP1P2 > FLT_EPSILON)
     {
       resultScale.x = sumSquaredSqrtP1P2/deltaViewPointXY.x;
     }
   if(sumSquaredSqrtP1P3 > FLT_EPSILON)
     {
       resultScale.y = sumSquaredSqrtP1P3/deltaViewPointXY.y;
     }
 }

◆ imageToView() [1/2]

void ossimImageViewTransform::imageToView	(	const ossimDpt &	imagePoint,
		ossimDpt &	viewPoint
	)		const

virtual

Reimplemented in ossimImageViewAffineTransform, and ossimImageViewProjectionTransform.

Definition at line 29 of file ossimImageViewTransform.cpp.

Referenced by forward(), getImageToViewBounds(), getImageToViewScale(), getRoundTripErrorImage(), getRoundTripErrorView(), getScaleChangeImageToView(), getScaleChangeViewToImage(), ossimImageRenderer::getValidImageVertices(), ossimIvtGeomXform::imageToView(), and imageToView().

 {
    viewPoint = imagePoint;
 }

◆ imageToView() [2/2]

ossimDpt ossimImageViewTransform::imageToView ( const ossimDpt & imagePoint ) const

Definition at line 41 of file ossimImageViewTransform.cpp.

References imageToView().

 {
    ossimDpt tempPt;
    
    imageToView(imagePoint, tempPt);
    
    return tempPt;
 }

◆ inverse()

void ossimImageViewTransform::inverse	(	const ossimDpt &	input,
		ossimDpt &	output
	)		const

virtual

Reimplemented from ossim2dTo2dTransform.

Definition at line 23 of file ossimImageViewTransform.cpp.

References viewToImage().

 {
    viewToImage(input, output);
 }

◆ isIdentity()

virtual bool ossimImageViewTransform::isIdentity ( ) const

pure virtual

derived classes will specify if the imageViewTransform is an identity.

Implemented in ossimImageViewAffineTransform, and ossimImageViewProjectionTransform.

◆ isValid()

virtual bool ossimImageViewTransform::isValid ( ) const

pure virtual

Implemented in ossimImageViewAffineTransform, and ossimImageViewProjectionTransform.

Referenced by ossimImageRenderer::checkIVT(), ossimImageRenderer::getImageGeometry(), ossimImageRenderer::getValidImageVertices(), ossimImageRenderer::initialize(), and ossimImageRenderer::setImageViewTransform().

◆ loadState()

bool ossimImageViewTransform::loadState	(	const ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)

virtual

Method to the load (recreate) the state of the object from a keyword list. Return true if ok or false on error.

Reimplemented from ossim2dTo2dTransform.

Reimplemented in ossimImageViewAffineTransform, and ossimImageViewProjectionTransform.

Definition at line 126 of file ossimImageViewTransform.cpp.

References ossim2dTo2dTransform::loadState().

Referenced by ossimImageViewTransformFactory::createTransform(), ossimImageViewProjectionTransform::loadState(), and ossimImageViewAffineTransform::loadState().

 {
    return ossim2dTo2dTransform::loadState(kwl, prefix);
 }

◆ print()

std::ostream & ossimImageViewTransform::print ( std::ostream & out ) const

virtual

Generic print method.

Derived classes should re-implement as they see fit.

Returns: std::ostream&

Reimplemented from ossim2dTo2dTransform.

Reimplemented in ossimImageViewProjectionTransform.

Definition at line 324 of file ossimImageViewTransform.cpp.

Referenced by operator<<().

 {
    return out;
 }

◆ saveState()

bool ossimImageViewTransform::saveState	(	ossimKeywordlist &	kwl,
		const char *	prefix = `0`
	)		const

virtual

Method to save the state of the object to a keyword list. Return true if ok or false on error.

Reimplemented from ossim2dTo2dTransform.

Reimplemented in ossimImageViewAffineTransform, and ossimImageViewProjectionTransform.

Definition at line 132 of file ossimImageViewTransform.cpp.

References ossim2dTo2dTransform::saveState().

Referenced by ossimImageRenderer::saveState(), ossimImageViewProjectionTransform::saveState(), and ossimImageViewAffineTransform::saveState().

 {
    return ossim2dTo2dTransform::saveState(kwl, prefix);
 }

◆ viewToImage() [1/2]

void ossimImageViewTransform::viewToImage	(	const ossimDpt &	viewPoint,
		ossimDpt &	imagePoint
	)		const

virtual

Reimplemented in ossimImageViewAffineTransform, and ossimImageViewProjectionTransform.

Definition at line 35 of file ossimImageViewTransform.cpp.

References ossim2dTo2dTransform::inverse().

Referenced by getRoundTripErrorImage(), getRoundTripErrorView(), getViewToImageBounds(), getViewToImageScale(), inverse(), ossimIvtGeomXform::viewToImage(), and viewToImage().

 {
    ossim2dTo2dTransform::inverse(viewPoint, imagePoint);
 }

◆ viewToImage() [2/2]

ossimDpt ossimImageViewTransform::viewToImage ( const ossimDpt & viewPoint ) const

Definition at line 50 of file ossimImageViewTransform.cpp.

References viewToImage().

 {
    ossimDpt tempPt;
    
    viewToImage(viewPoint, tempPt);
    
    return tempPt;
 }

Friends And Related Function Documentation

◆ operator<<

OSSIMDLLEXPORT ostream& operator<<	(	ostream &	out,
		const ossimImageViewTransform &	data
	)

friend

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

Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ossimImageViewTransform()

Member Function Documentation

◆ forward()

◆ getImageToViewBounds()

◆ getImageToViewScale()

◆ getInputMetersPerPixel()

◆ getOutputMetersPerPixel()

◆ getRoundTripErrorImage() [1/2]

◆ getRoundTripErrorImage() [2/2]

◆ getRoundTripErrorView() [1/2]

◆ getRoundTripErrorView() [2/2]

◆ getScaleChangeImageToView()

◆ getScaleChangeViewToImage()

◆ getViewToImageBounds()

◆ getViewToImageScale()

◆ imageToView() [1/2]

◆ imageToView() [2/2]

◆ inverse()

◆ isIdentity()

◆ isValid()

◆ loadState()

◆ print()

◆ saveState()

◆ viewToImage() [1/2]

◆ viewToImage() [2/2]

Friends And Related Function Documentation

◆ operator<<