#include <ossimAnnotationPolyObject.h>

Inheritance diagram for ossimAnnotationPolyObject:

Public Member Functions
	ossimAnnotationPolyObject (bool enableFill=false, ossim_uint8 r=255, ossim_uint8 g=255, ossim_uint8 b=255, ossim_uint8 thickness=1)

	ossimAnnotationPolyObject (const vector< ossimDpt > &imagePts, bool enableFill=false, ossim_uint8 r=255, ossim_uint8 g=255, ossim_uint8 b=255, ossim_uint8 thickness=1)

	ossimAnnotationPolyObject (const ossimAnnotationPolyObject &rhs)

ossimObject *	dup () const

virtual void	applyScale (double x, double y)

virtual void	draw (ossimRgbImage &anImage) const

virtual bool	intersects (const ossimDrect &rect) const

virtual ossimAnnotationObject *	getNewClippedObject (const ossimDrect &rect) const

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

virtual void	getBoundingRect (ossimDrect &rect) const

virtual void	addPoint (const ossimDpt &pt)

virtual void	setPolygon (const vector< ossimDpt > &imagePoints)

virtual void	setPolygon (const ossimPolygon &polygon)

virtual void	setPolygon (const ossimIrect &rect)

virtual void	setPolygon (const ossimDrect &rect)

virtual void	computeBoundingRect ()

virtual bool	isPointWithin (const ossimDpt &imagePoint) const

const ossimPolygon &	getPolygon () const

ossimPolygon &	getPolygon ()

virtual void	setFillFlag (bool flag)

Public Member Functions inherited from ossimAnnotationObject
virtual	~ossimAnnotationObject ()

	ossimAnnotationObject (ossim_uint8 r=255, ossim_uint8 g=255, ossim_uint8 b=255, ossim_uint8 thickness=1)

virtual void	applyScale (const ossimDpt &scale)

virtual ossimDrect	getBoundingRect () const

virtual void	setColor (ossim_uint8 r, ossim_uint8 g, ossim_uint8 b)

void	getColor (ossim_uint8 &r, ossim_uint8 &g, ossim_uint8 &b) const

ossim_uint8	getThickness () const

virtual void	setThickness (ossim_uint8 thickness)

virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const
	Saves the current state of this object. More...

virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)
	Method to the load (recreate) the state of an object from a keyword list. More...

virtual ossimString	getName () const

virtual void	setName (const ossimString &name)

ossim_uint32	getId () const

virtual ossim_uint32	setId ()

Public Member Functions inherited from ossimObject
	ossimObject ()

virtual	~ossimObject ()

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

Protected Member Functions
virtual	~ossimAnnotationPolyObject ()

Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Attributes
ossimPolygon	thePolygon

ossimDrect	theBoundingRect

bool	theFillEnabled

Protected Attributes inherited from ossimAnnotationObject
ossim_uint8	theRed

ossim_uint8	theGreen

ossim_uint8	theBlue

ossim_uint8	theThickness

ossimString	theName

ossim_uint32	theId

Additional Inherited Members
Static Public Member Functions inherited from ossimAnnotationObject
static ossim_uint32	getNextId ()

static void	restIdCounter ()

Static Protected Attributes inherited from ossimAnnotationObject
static ossim_uint32	theIdCounter = 0

Detailed Description

Definition at line 17 of file ossimAnnotationPolyObject.h.

Constructor & Destructor Documentation

◆ ossimAnnotationPolyObject() [1/3]

ossimAnnotationPolyObject::ossimAnnotationPolyObject	(	bool	enableFill = `false`,
		ossim_uint8	r = `255`,
		ossim_uint8	g = `255`,
		ossim_uint8	b = `255`,
		ossim_uint8	thickness = `1`
	)

Referenced by dup(), and getNewClippedObject().

◆ ossimAnnotationPolyObject() [2/3]

ossimAnnotationPolyObject::ossimAnnotationPolyObject	(	const vector< ossimDpt > &	imagePts,
		bool	enableFill = `false`,
		ossim_uint8	r = `255`,
		ossim_uint8	g = `255`,
		ossim_uint8	b = `255`,
		ossim_uint8	thickness = `1`
	)

Definition at line 32 of file ossimAnnotationPolyObject.cpp.

References computeBoundingRect(), and thePolygon.

    :ossimAnnotationObject(r, g, b, thickness),
     theFillEnabled(enableFill)
 {
    thePolygon = imagePts;
    computeBoundingRect();
 }

◆ ossimAnnotationPolyObject() [3/3]

ossimAnnotationPolyObject::ossimAnnotationPolyObject ( const ossimAnnotationPolyObject & rhs )

Definition at line 46 of file ossimAnnotationPolyObject.cpp.

    : ossimAnnotationObject(rhs),
      thePolygon(rhs.thePolygon),
      theBoundingRect(rhs.theBoundingRect),
      theFillEnabled(rhs.theFillEnabled)
 {
 }

◆ ~ossimAnnotationPolyObject()

ossimAnnotationPolyObject::~ossimAnnotationPolyObject ( )

protectedvirtual

Definition at line 60 of file ossimAnnotationPolyObject.cpp.

61 {

62 }

Member Function Documentation

◆ addPoint()

void ossimAnnotationPolyObject::addPoint ( const ossimDpt & pt )

virtual

Definition at line 283 of file ossimAnnotationPolyObject.cpp.

References ossimPolygon::addPoint(), and thePolygon.

 {
    thePolygon.addPoint(pt);
 }

◆ applyScale()

void ossimAnnotationPolyObject::applyScale	(	double	x,
		double	y
	)

virtual

Implements ossimAnnotationObject.

Definition at line 64 of file ossimAnnotationPolyObject.cpp.

References computeBoundingRect(), thePolygon, x, and y.

Referenced by ossimGeoAnnotationPolyObject::applyScale().

 {
    thePolygon      *= ossimDpt(x, y);
    computeBoundingRect();
 }

◆ computeBoundingRect()

void ossimAnnotationPolyObject::computeBoundingRect ( )

virtual

Implements ossimAnnotationObject.

Definition at line 308 of file ossimAnnotationPolyObject.cpp.

References theBoundingRect, and thePolygon.

Referenced by applyScale(), ossimGeoAnnotationPolyObject::computeBoundingRect(), ossimAnnotationPolyObject(), and ossimGeoAnnotationPolyObject::transform().

 {
    theBoundingRect = ossimDrect(thePolygon);
 }

◆ draw()

void ossimAnnotationPolyObject::draw ( ossimRgbImage & anImage ) const

virtual

Implements ossimAnnotationObject.

Definition at line 167 of file ossimAnnotationPolyObject.cpp.

References ossimPolygon::clipToRect(), ossimRgbImage::drawFilledPolygon(), ossimRgbImage::drawLine(), ossimRgbImage::getImageData(), ossimImageData::getImageRectangle(), ossimPolygon::getNumberOfVertices(), ossimPolygon::getVertexCount(), ossimDrect::hasNans(), ossimDrect::intersects(), ossimDrect::lr(), ossimRgbImage::setDrawColor(), ossimRgbImage::setThickness(), ossimAnnotationObject::theBlue, theBoundingRect, theFillEnabled, ossimAnnotationObject::theGreen, thePolygon, ossimAnnotationObject::theRed, ossimAnnotationObject::theThickness, ossimDrect::ul(), ossimDpt::x, and ossimDpt::y.

Referenced by ossimGeoAnnotationPolyObject::draw().

 {
    if(thePolygon.getVertexCount() < 2) return;
    if(theBoundingRect.hasNans()) return;
    int vertexCount = thePolygon.getVertexCount();
    
    anImage.setDrawColor(theRed, theGreen, theBlue);
    anImage.setThickness(theThickness);
    ossimDrect imageRect = anImage.getImageData()->getImageRectangle();
    if(theBoundingRect.intersects(imageRect))
    {
       // we need to extend it by a couple of pixels since
       // if a pixel lies on the edge and then another pixel is just off
       // the edge we will get a stair step and so for several pixels
       // the line might be inside the image rectangle but the clip
       // algorithm will only draw 1 pixel since it thinks the first
       // point is inside and the second point is outside and will
       // execute the clip algorithm keeping only the first
       // point.
       ossimDrect clipRect(imageRect.ul().x - 10,
                           imageRect.ul().y - 10,
                           imageRect.lr().x + 10,
                           imageRect.lr().y + 10);
       
       if(!theFillEnabled)
       {
          ossimDpt start, end;
          if(thePolygon.getNumberOfVertices() == 1)
          {
             start = thePolygon[0];
             end   = thePolygon[0];
             if(clipRect.clip(start, end))
             {
                anImage.drawLine(ossimIpt(start),
                                 ossimIpt(end));
             }
          }
          else if(thePolygon.getNumberOfVertices() == 2)
          {
             start = thePolygon[0];
             end   = thePolygon[1];
             if(clipRect.clip(start, end))
             {
                anImage.drawLine(ossimIpt(start),
                                 ossimIpt(end));
             }
          }
          else
          {
             int j = 0;
             while(j<vertexCount)
             {
                start = thePolygon[j];
                end   = thePolygon[(j+1)%vertexCount];
                if(clipRect.clip(start, end))
                {
                   anImage.drawLine(ossimIpt(start),
                                    ossimIpt(end));
                }
                ++j;
             }
          }
 #if 0
                ossimDpt start, end;
                start = thePolygon[vertexCount-1];
                end   = thePolygon[0];
                int i = 0;
                do
                {
                   if(clipRect.clip(start, end))
                   {
                      anImage.drawLine(ossimIpt((int)start.x, (int)start.y),
                                       ossimIpt((int)end.x, (int)end.y));
                   }
                   ++i;
                   start = thePolygon[i];
                   end   = thePolygon[i-1];
                }while(i < vertexCount);
 #endif    
       }
       else
       {
          vector<ossimPolygon> result;
          if(thePolygon.clipToRect(result, imageRect))
          {
             for(int i = 0; i < (int)result.size();++i)
             {
                anImage.drawFilledPolygon(result[i].getVertexList());
             }
          }
       }
    }
 }

◆ dup()

ossimObject * ossimAnnotationPolyObject::dup ( ) const

virtual

Reimplemented from ossimObject.

Definition at line 55 of file ossimAnnotationPolyObject.cpp.

References ossimAnnotationPolyObject().

 {
    return new ossimAnnotationPolyObject(*this);
 }

◆ getBoundingRect()

void ossimAnnotationPolyObject::getBoundingRect ( ossimDrect & rect ) const

virtual

Implements ossimAnnotationObject.

Definition at line 278 of file ossimAnnotationPolyObject.cpp.

References theBoundingRect.

Referenced by ossimGeoAnnotationPolyObject::getBoundingRect().

 {
    rect = theBoundingRect;
 }

◆ getNewClippedObject()

ossimAnnotationObject * ossimAnnotationPolyObject::getNewClippedObject ( const ossimDrect & rect ) const

virtual

Will allocate a new object that is clipped to the passed. in rect. Look at derived classes to see if the object is actually clipped or not. A new object is returned if it clips to the rect else NULL should be returned it doesn't clip.

Implements ossimAnnotationObject.

Definition at line 115 of file ossimAnnotationPolyObject.cpp.

References ossimPolygon::clipToRect(), ossimPolyLine::clipToRect(), ossimDrect::intersects(), ossimAnnotationPolyObject(), ossimAnnotationObject::theBlue, theBoundingRect, theFillEnabled, ossimAnnotationObject::theGreen, thePolygon, ossimAnnotationObject::theRed, and ossimAnnotationObject::theThickness.

Referenced by ossimGeoAnnotationPolyObject::getNewClippedObject().

 {
    ossimAnnotationObject* result = (ossimAnnotationObject*)NULL;
 
    if(theBoundingRect.intersects(rect))
    {
       if(theFillEnabled)
       {
          vector<ossimPolygon> resultPoly;
          
          if(thePolygon.clipToRect(resultPoly, rect))
          {
             if(resultPoly.size() == 1)
             {
                result = new ossimAnnotationPolyObject(resultPoly[0].getVertexList(),
                                                       theFillEnabled,
                                                       theRed,
                                                       theGreen,
                                                       theBlue,
                                                       theThickness);
             }
             else
             {
                result = new ossimAnnotationMultiPolyObject(resultPoly,
                                                            theFillEnabled,
                                                            theRed,
                                                            theGreen,
                                                            theBlue,
                                                            theThickness);
             }
          }
       }
       else
       {
          vector<ossimPolyLine> lineListResult;
          ossimPolyLine polyLine = thePolygon;
          
          if(polyLine.clipToRect(lineListResult,
                                 rect))
          {
             result = new ossimAnnotationMultiLineObject(lineListResult,
                                                         theRed,
                                                         theGreen,
                                                         theBlue,
                                                         theThickness);
          }
       }
    }
 
    return result;
 }

◆ getPolygon() [1/2]

const ossimPolygon & ossimAnnotationPolyObject::getPolygon ( ) const

Definition at line 318 of file ossimAnnotationPolyObject.cpp.

References thePolygon.

Referenced by ossimGeoAnnotationPolyObject::transform().

 {
    return thePolygon;
 }

◆ getPolygon() [2/2]

ossimPolygon & ossimAnnotationPolyObject::getPolygon ( )

Definition at line 323 of file ossimAnnotationPolyObject.cpp.

References thePolygon.

 {
    return thePolygon;
 }

◆ intersects()

bool ossimAnnotationPolyObject::intersects ( const ossimDrect & rect ) const

virtual

Implements ossimAnnotationObject.

Definition at line 70 of file ossimAnnotationPolyObject.cpp.

References ossimDrect::clip(), ossimPolygon::clipToRect(), ossimPolygon::getVertexCount(), ossimDrect::hasNans(), ossimDrect::intersects(), theBoundingRect, theFillEnabled, and thePolygon.

Referenced by ossimGeoAnnotationPolyObject::intersects().

 {
    // do the quick checks first
    //
    if(rect.hasNans()) return false;
    if(!rect.intersects(theBoundingRect)) return false;
    
    if(!theFillEnabled)
    {
       int vertexCount = thePolygon.getVertexCount();
       ossimDpt start, end;
       int j = 0;
       while(j<vertexCount)
       {
          start = thePolygon[j];
          end   = thePolygon[(j+1)%vertexCount];
          if(rect.clip(start, end))
          {
             return true;
          }
          ++j;
       }
 //       start = thePolygon[vertexCount-1];
 //       end   = thePolygon[0];
 //       int i = 0;
 //       do
 //       {
 //          if(rect.clip(start, end))
 //          {
 //             return true;
 //          }
 //          ++i;
 //          start = thePolygon[i];
 //          end   = thePolygon[i-1];
 //       }while(i < vertexCount);
    }
    else
    {
       vector<ossimPolygon> result;
       return thePolygon.clipToRect(result, rect);
    }
 
    return false;
 }

◆ isPointWithin()

bool ossimAnnotationPolyObject::isPointWithin ( const ossimDpt & imagePoint ) const

virtual

This method allows you to pick an object. It will return true or false if the point falls somewhere on an object. Look at derived classes for further information.

Reimplemented from ossimAnnotationObject.

Definition at line 313 of file ossimAnnotationPolyObject.cpp.

References ossimDrect::pointWithin(), and theBoundingRect.

 {
    return theBoundingRect.pointWithin(imagePoint);
 }

◆ print()

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

virtual

Generic print method.

Derived classes should re-implement as they see fit.

Returns: std::ostream&

Reimplemented from ossimAnnotationObject.

Definition at line 261 of file ossimAnnotationPolyObject.cpp.

References ossimPolygon::getVertexCount(), theBoundingRect, theFillEnabled, and thePolygon.

Referenced by ossimGeoAnnotationPolyObject::print().

 {
    out << "number_of_points:  " << thePolygon.getVertexCount();
    if(thePolygon.getVertexCount() > 0)
    {
       for(long index =0; index < (long)(thePolygon.getVertexCount()-1); ++index)
       {
          out << thePolygon[index] << endl;
             
       }
       out << thePolygon[thePolygon.getVertexCount()-1] << endl;
    }
    out << "fill_enabled:      " << theFillEnabled << endl
        << "bounding_rect:     " << theBoundingRect << endl;
    return out;
 }