ossimAnnotationMultiPolyObject Class Reference

#include <ossimAnnotationMultiPolyObject.h>

Inheritance diagram for ossimAnnotationMultiPolyObject:

Public Member Functions
	ossimAnnotationMultiPolyObject ()
	ossimAnnotationMultiPolyObject (const vector< ossimPolygon > &multiPoly, bool enableFill, unsigned char r, unsigned char g, unsigned char b, long thickness)
	ossimAnnotationMultiPolyObject (const ossimAnnotationMultiPolyObject &rhs)
virtual 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	clear ()
virtual void	addPolygon (ossim_uint32 polygonIndex, const ossimPolygon &poly)
virtual void	addPoint (ossim_uint32 polygonIndex, const ossimDpt &pt)
virtual void	setMultiPolygon (const vector< ossimPolygon > &multiPoly)
virtual void	computeBoundingRect ()
virtual bool	isPointWithin (const ossimDpt &imagePoint) const
const std::vector< ossimPolygon > &	getMultiPolygon () const
std::vector< ossimPolygon > &	getMultiPolygon ()
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	~ossimAnnotationMultiPolyObject ()
Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Protected Attributes
vector< ossimPolygon >	theMultiPolygon
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 16 of file ossimAnnotationMultiPolyObject.h.

Constructor & Destructor Documentation

ossimAnnotationMultiPolyObject() [1/3]

ossimAnnotationMultiPolyObject::ossimAnnotationMultiPolyObject

(

)

Definition at line 18 of file ossimAnnotationMultiPolyObject.cpp.

Referenced by getNewClippedObject().

   :ossimAnnotationObject(),
    theFillEnabled(false)
{
   computeBoundingRect();
}

ossimAnnotationMultiPolyObject() [2/3]

ossimAnnotationMultiPolyObject::ossimAnnotationMultiPolyObject	(	const vector< ossimPolygon > &	multiPoly,
		bool	enableFill,
		unsigned char	r,
		unsigned char	g,
		unsigned char	b,
		long	thickness
	)

Definition at line 25 of file ossimAnnotationMultiPolyObject.cpp.

References computeBoundingRect(), and theMultiPolygon.

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

ossimAnnotationMultiPolyObject() [3/3]

ossimAnnotationMultiPolyObject::ossimAnnotationMultiPolyObject ( const ossimAnnotationMultiPolyObject &  rhs )

inline

Definition at line 27 of file ossimAnnotationMultiPolyObject.h.

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

~ossimAnnotationMultiPolyObject()

ossimAnnotationMultiPolyObject::~ossimAnnotationMultiPolyObject ( )

protectedvirtual

Definition at line 38 of file ossimAnnotationMultiPolyObject.cpp.

{
}

Member Function Documentation

addPoint()

virtual void ossimAnnotationMultiPolyObject::addPoint ( ossim_uint32  polygonIndex, const ossimDpt &  pt  )

inlinevirtual

Definition at line 55 of file ossimAnnotationMultiPolyObject.h.

      {
         if(polygonIndex < theMultiPolygon.size())
         {
            theMultiPolygon[polygonIndex].addPoint(pt);
         }
      }

addPolygon()

virtual void ossimAnnotationMultiPolyObject::addPolygon ( ossim_uint32  polygonIndex, const ossimPolygon &  poly  )

inlinevirtual

Definition at line 47 of file ossimAnnotationMultiPolyObject.h.

Referenced by ossimGeoAnnotationMultiPolyObject::transform().

      {
         if(polygonIndex < theMultiPolygon.size())
         {
             theMultiPolygon[polygonIndex] = poly;
         }
      }

applyScale()

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

virtual

Implements ossimAnnotationObject.

Definition at line 42 of file ossimAnnotationMultiPolyObject.cpp.

References theBoundingRect, theMultiPolygon, x, and y.

{
   for(ossim_uint32 i =0; i<theMultiPolygon.size(); ++i)
   {
      theMultiPolygon[i] *= ossimDpt(x, y);
   }
   
   theBoundingRect *= ossimDpt(x,y);
}

clear()

void ossimAnnotationMultiPolyObject::clear ( )

virtual

Definition at line 268 of file ossimAnnotationMultiPolyObject.cpp.

References theMultiPolygon.

{
   theMultiPolygon.clear();
}

computeBoundingRect()

void ossimAnnotationMultiPolyObject::computeBoundingRect ( )

virtual

Implements ossimAnnotationObject.

Definition at line 273 of file ossimAnnotationMultiPolyObject.cpp.

References ossimDrect::combine(), ossimDrect::hasNans(), ossimDrect::height(), ossimDrect::makeNan(), theBoundingRect, theMultiPolygon, ossimAnnotationObject::theThickness, ossimDrect::ul(), ossimDrect::width(), ossimIpt::x, and ossimIpt::y.

Referenced by ossimGeoAnnotationMultiPolyObject::computeBoundingRect(), ossimAnnotationMultiPolyObject(), and ossimGeoAnnotationMultiPolyObject::transform().

{
   if(theMultiPolygon.size())
   {
      ossimDrect rect(theMultiPolygon[0]);
      
      for(ossim_uint32 i = 1; i < theMultiPolygon.size(); ++i)
      {
         ossimDrect rect2(theMultiPolygon[i]);

         if(rect.hasNans())
         {
            rect = rect2;
         }
         else
         {
            if(!rect2.hasNans())
            {
               rect = rect.combine(rect2);
            }
         }
      }
      
      theBoundingRect = rect;
   }
   else
   {
      theBoundingRect.makeNan();
   }
   if(!theBoundingRect.hasNans())
   {
      ossimIpt origin = theBoundingRect.ul();
      theBoundingRect = ossimDrect(origin.x - theThickness/2,
                                   origin.y - theThickness/2,
                                   origin.x + (theBoundingRect.width()-1) + theThickness/2,
                                   origin.y + (theBoundingRect.height()-1) + theThickness/2);
   }
}

draw()

void ossimAnnotationMultiPolyObject::draw ( ossimRgbImage &  anImage ) const

virtual

Implements ossimAnnotationObject.

Definition at line 143 of file ossimAnnotationMultiPolyObject.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, theMultiPolygon, ossimAnnotationObject::theRed, ossimAnnotationObject::theThickness, ossimDrect::ul(), ossimDpt::x, and ossimDpt::y.

Referenced by ossimGeoAnnotationMultiPolyObject::draw().

{
   if(theMultiPolygon.size()<1) return;
   if(theBoundingRect.hasNans()) return;
   
   
   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);

      int j = 0;
      for(ossim_uint32 i = 0; i < theMultiPolygon.size(); ++i)
      {
         const ossimPolygon& poly = theMultiPolygon[i];
         int vertexCount          = poly.getVertexCount();
         if(!theFillEnabled)
         {
            if(poly.getNumberOfVertices() == 1)
            {
               ossimDpt start, end;
               start = poly[0];
               end   = poly[0];
               if(clipRect.clip(start, end))
               {
                  anImage.drawLine(ossimIpt(start),
                                   ossimIpt(end));
               }
            }
            else if(poly.getNumberOfVertices() == 2)
            {
               ossimDpt start, end;
               start = poly[0];
               end   = poly[1];
               if(clipRect.clip(start, end))
               {
                  anImage.drawLine(ossimIpt(start),
                                   ossimIpt(end));
               }
            }
            else if(vertexCount > 2)
            {
               ossimDpt start, end;
               j = 0;
               while(j<vertexCount)
               {
                  start = poly[j];
                  end   = poly[(j+1)%vertexCount];
                  if(clipRect.clip(start, end))
                  {
                     anImage.drawLine(ossimIpt(start),
                                      ossimIpt(end));
                  }
                  ++j;
               }
#if 0
               ossimDpt start, end;
               start = poly[vertexCount-1];
               end   = poly[0];
               j = 0;
               do
               {
                  if(clipRect.clip(start, end))
                  {
                     anImage.drawLine(ossimIpt(start),
                                      ossimIpt(end));
                  }
                  ++j;
                  start = poly[j-1];
                  end   = poly[j];
               }while(j < vertexCount);
#endif
            }
         }
         else
         {
            vector<ossimPolygon> result;
            if(poly.clipToRect(result, imageRect))
            {
               for(j = 0; j < (int)result.size();++j)
               {
                  anImage.drawFilledPolygon(result[j].getVertexList());
               }
            }
         }
      }
   }
}

dup()

virtual ossimObject* ossimAnnotationMultiPolyObject::dup ( ) const

inlinevirtual

Reimplemented from ossimObject.

Definition at line 34 of file ossimAnnotationMultiPolyObject.h.

      {
         return new ossimAnnotationMultiPolyObject(*this);
      }

getBoundingRect()

void ossimAnnotationMultiPolyObject::getBoundingRect ( ossimDrect &  rect ) const

virtual

Implements ossimAnnotationObject.

Definition at line 263 of file ossimAnnotationMultiPolyObject.cpp.

References theBoundingRect.

Referenced by ossimGeoAnnotationMultiPolyObject::computeBoundingRect(), and ossimGeoAnnotationMultiPolyObject::getBoundingRect().

{   
   rect = theBoundingRect;
}

getMultiPolygon() [1/2]

const std::vector<ossimPolygon>& ossimAnnotationMultiPolyObject::getMultiPolygon ( ) const

inline

Definition at line 72 of file ossimAnnotationMultiPolyObject.h.

{return theMultiPolygon;}

getMultiPolygon() [2/2]

std::vector<ossimPolygon>& ossimAnnotationMultiPolyObject::getMultiPolygon ( )

inline

Definition at line 73 of file ossimAnnotationMultiPolyObject.h.

{return theMultiPolygon;}

getNewClippedObject()

ossimAnnotationObject * ossimAnnotationMultiPolyObject::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 74 of file ossimAnnotationMultiPolyObject.cpp.

References ossimPolyLine::clipToRect(), ossimDrect::intersects(), ossimDrect::lr(), ossimAnnotationMultiPolyObject(), ossimAnnotationObject::theBlue, theBoundingRect, theFillEnabled, ossimAnnotationObject::theGreen, theMultiPolygon, ossimAnnotationObject::theRed, ossimAnnotationObject::theThickness, ossimDrect::ul(), ossimDpt::x, and ossimDpt::y.

{
   ossimAnnotationObject* result = (ossimAnnotationObject*)NULL;

   if(theBoundingRect.intersects(rect))
   {
      ossimDrect clipRect(rect.ul().x - 10,
                          rect.ul().y - 10,
                          rect.lr().x + 10,
                          rect.lr().y + 10);
      
      if(theFillEnabled)
      {
         vector<ossimPolygon> polyListResult;
         
         for(ossim_uint32 i = 0; i < theMultiPolygon.size(); ++i)
         {
            vector<ossimPolygon> tempList;
            
            if(theMultiPolygon[i].clipToRect(tempList, rect))
            {
               polyListResult.insert(polyListResult.end(),
                                     tempList.begin(),
                                     tempList.end());
            }
         }
         
         if(polyListResult.size())
         {
            result = new ossimAnnotationMultiPolyObject(polyListResult,
                                                        theFillEnabled,
                                                        theRed,
                                                        theGreen,
                                                        theBlue,
                                                        theThickness);
         }
      }
      else
      {
         vector<ossimPolyLine> lineListResult;
         vector<ossimPolyLine> tempResult;

         for(ossim_uint32 i = 0; i< theMultiPolygon.size();++i)
         {
            ossimPolyLine polyLine = theMultiPolygon[i];

            if(polyLine.clipToRect(tempResult,
                                   clipRect))
            {
               lineListResult.insert(lineListResult.end(),
                                     tempResult.begin(),
                                     tempResult.end());
            }
         }
         
         if(lineListResult.size())
         {
            result = new ossimAnnotationMultiLineObject(lineListResult,
                                                        theRed,
                                                        theGreen,
                                                        theBlue,
                                                        theThickness);
         }
      }
   }
   
   return result;
}

intersects()

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

virtual

Implements ossimAnnotationObject.

Definition at line 53 of file ossimAnnotationMultiPolyObject.cpp.

References ossimDrect::hasNans(), ossimDrect::intersects(), theBoundingRect, and theMultiPolygon.

{
   // do the quick checks first
   //
   if(rect.hasNans()) return false;
   if(!rect.intersects(theBoundingRect)) return false;
   if(theMultiPolygon.size()<1) return false;
   
   for(ossim_uint32 i =0; i < theMultiPolygon.size(); ++i)
   {
      vector<ossimPolygon> result;
      
      if(theMultiPolygon[i].clipToRect(result, rect))
      {
         return true;
      }
   }

   return false;
}

isPointWithin()

bool ossimAnnotationMultiPolyObject::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 312 of file ossimAnnotationMultiPolyObject.cpp.

References theMultiPolygon.

Referenced by ossimGeoAnnotationMultiPolyObject::isPointWithin().

{
   for(ossim_uint32 i = 0; i < theMultiPolygon.size(); ++i)
   {
      if(theMultiPolygon[i].isPointWithin(imagePoint))
      {
         return true;
      }
   }

   return false;
}

print()

std::ostream & ossimAnnotationMultiPolyObject::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 246 of file ossimAnnotationMultiPolyObject.cpp.

References ossimObject::getClassName(), ossimAnnotationObject::print(), theFillEnabled, and theMultiPolygon.

{
   ossimAnnotationObject::print(out);
   out << endl;
   out << setw(15)<<setiosflags(ios::left)<<"type:"<<getClassName() << endl
       << setw(15)<<setiosflags(ios::left)<<"polygons:"<<theMultiPolygon.size()<<endl
       << setw(15)<<setiosflags(ios::left)<<"fill enable: " << theFillEnabled << endl;
   
   for(ossim_uint32 i = 0; i < theMultiPolygon.size(); ++i)
   {
      out << "____________________________________________________"<<endl
          << theMultiPolygon[i] << endl;
   }
   out << "____________________________________________________"<<endl;
   return out;
}

setFillFlag()

void ossimAnnotationMultiPolyObject::setFillFlag ( bool  flag )

inline

Definition at line 74 of file ossimAnnotationMultiPolyObject.h.

Referenced by ossimGeoAnnotationMultiPolyObject::setFillFlag().

      {
         theFillEnabled = flag;
      }

setMultiPolygon()

virtual void ossimAnnotationMultiPolyObject::setMultiPolygon ( const vector< ossimPolygon > &  multiPoly )

inlinevirtual

Definition at line 64 of file ossimAnnotationMultiPolyObject.h.

References ossimAnnotationObject::computeBoundingRect().

      {
         theMultiPolygon = multiPoly;
         computeBoundingRect();
      }

Member Data Documentation

theBoundingRect

ossimDrect ossimAnnotationMultiPolyObject::theBoundingRect

protected

Definition at line 81 of file ossimAnnotationMultiPolyObject.h.

Referenced by applyScale(), computeBoundingRect(), draw(), getBoundingRect(), getNewClippedObject(), and intersects().

theFillEnabled

bool ossimAnnotationMultiPolyObject::theFillEnabled

protected

Definition at line 82 of file ossimAnnotationMultiPolyObject.h.

Referenced by draw(), getNewClippedObject(), and print().

theMultiPolygon

vector<ossimPolygon> ossimAnnotationMultiPolyObject::theMultiPolygon

protected

Definition at line 80 of file ossimAnnotationMultiPolyObject.h.

Referenced by applyScale(), clear(), computeBoundingRect(), draw(), getNewClippedObject(), intersects(), isPointWithin(), ossimAnnotationMultiPolyObject(), and print().

---

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

• ossimAnnotationMultiPolyObject.h
• ossimAnnotationMultiPolyObject.cpp