ossimBumpShadeTileSource.h

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//*******************************************************************
// Copyright (C) 2000 ImageLinks Inc. 
//
// License:  MIT
// 
// See LICENSE.txt file in the top level directory for more details.
//
// Author: Garrett Potts
//
//*************************************************************************
// $Id: ossimBumpShadeTileSource.h 23108 2015-01-27 17:00:20Z okramer $
#ifndef ossimBumpShadeTileSource_HEADER
#define ossimBumpShadeTileSource_HEADER
#include <ossim/imaging/ossimImageCombiner.h>
#include <ossim/base/ossimPropertyEvent.h>
#include <ossim/matrix/newmat.h>

class ossimImageData;

class ossimImageSourceConnection;

class OSSIMDLLEXPORT ossimBumpShadeTileSource : public ossimImageCombiner
{
public:
   ossimBumpShadeTileSource();

   ossimString getShortName()const;
   ossimString getLongName()const;

   ossimRefPtr<ossimImageData> getTile(const ossimIrect& tileRect,
                                       ossim_uint32 resLevel=0);

   virtual bool getTile(ossimImageData* tile, ossim_uint32 resLevel=0);

   virtual ossim_uint32 getNumberOfOutputBands() const;

   virtual ossimScalarType getOutputScalarType() const;
   
   virtual double getNullPixelValue()const;

   virtual double getMinPixelValue(ossim_uint32 band=0)const;

   virtual double getMaxPixelValue(ossim_uint32 band=0)const;

   virtual double getAzimuthAngle()const;

   virtual double getElevationAngle()const;

   virtual void setAzimuthAngle(double angle);

   virtual void setElevationAngle(double angle);

   virtual void initialize();

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

   virtual bool saveState(ossimKeywordlist& kwl,
                          const char* prefix=0)const;
   
   bool canConnectMyInputTo(ossim_int32 inputIndex,
                            const ossimConnectableObject* object)const;
      
   virtual void connectInputEvent(ossimConnectionEvent& event);

   virtual void disconnectInputEvent(ossimConnectionEvent& event);

   virtual void propertyEvent(ossimPropertyEvent& event);

   virtual void refreshEvent(ossimRefreshEvent& event);

   void computeLightDirection();

   /* ------------------- PROPERTY INTERFACE -------------------- */
   virtual void setProperty(ossimRefPtr<ossimProperty> property);
   virtual ossimRefPtr<ossimProperty> getProperty(const ossimString& name)const;
   virtual void getPropertyNames(std::vector<ossimString>& propertyNames)const;
   /* ------------------ PROPERTY INTERFACE END ------------------- */

   void setRgbColorSource(ossim_uint8 r, ossim_uint8 g, ossim_uint8 b);

   void getRgbColorSource(ossim_uint8& r, ossim_uint8& g, ossim_uint8& b) const;
   
protected:
   virtual ~ossimBumpShadeTileSource();
   void allocate();
   ossimRefPtr<ossimImageData> m_tile;

   double m_lightSourceElevationAngle;

   double m_lightSourceAzimuthAngle;

   NEWMAT::ColumnVector m_lightDirection;

   ossim_uint8 m_r;
   ossim_uint8 m_g;
   ossim_uint8 m_b;

   void computeColor(ossim_uint8& r,
                     ossim_uint8& g,
                     ossim_uint8& b,
                     ossim_float64 normalX,
                     ossim_float64 normalY,
                     ossim_float64 normalZ,
                     ossim_uint8 dr,
                     ossim_uint8 dg,
                     ossim_uint8 db)const;
   
TYPE_DATA
};

#endif