grid.h

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/*
 *  grid.h
 *  Wadiscape
 *
 *  Created by Forschung on Mon Nov 28 2005.
 *  Copyright (c) 2005 __MyCompanyName__. All rights reserved.
 *
 */

// General documentation for your code to be used with DOXYGEN
// Put this part somewhere in your code (I suggest you put it at the top of main.cpp or some other prominent place


#ifndef GRID_H
#define GRID_H

const int N=512; //< preset edge length of the grid

//---------------------------------------------------------------------------
class flowinfo  // zugefuegt 20051130
{
private:
  flowinfo* nbsFrom[8];
  int contributing; //< number of directly contributing patches
  float total; //< number of all contributing patches
  float share; //< the number of nb cells with equal elevation among which the water flow is split
  bool checked; //< has this cell been checked already?
  
public:
  flowinfo(void) {contributing = 0; checked = 0; total=1; share=1.0;}
  ~flowinfo() {};
  float getContributing (void) {return contributing;} //< returns the number of nbs that contribute water
  float getTotalContributing (void) {return total>0.5?total:1;} //< returns the accumulated flow of one cell 
  float getTotalContributing (flowinfo* receivingCell); //< returns the accumulated flow of the nb cells
  void setInflow (flowinfo* pCell); //< sets the pointers to nbs where water comes from and counts them
  void setShare (float s) {share = s;} //< sets the number of nb cells with equal elevation among which the water flow is split
};

//---------------------------------------------------------------------------
struct celldata
{
  char Position; //< habitat codes (P: plateau, N: North-facing slope, S: South-facing slope, W: wadi bottom)
  float NCellsAll; //< flow accumulation; new 20051206 
};

//---------------------------------------------------------------------------

struct xyC // new 20051222
{
  int col;
  int row;
  float height;
};

//---------------------------------------------------------------------------

class TGrid
{
public:
  TGrid (void);
  ~TGrid ();


  void clearArrays(); 

  

  void createMountain (int Iterations, int Sigma, float Hurst, bool Addition);
  
  

  void createWadi (float Grad, bool Parabel);
  
  

  void calculateElevation (void);
  

  void countHigherCellsGIS (void);

  

  void outputContributing(void);

  
  
  void outputElevation(void);
  
  

  void outputTestVariable(void);
  
  

  void writeFile(float slope, int r);


private:
  celldata CellCount[N+1][N+1]; //< accumulated flow and habitat code
  float CellArray[N+1][N+1];  //< elevation of the fractal wadiscape
  float CellArrayF[N+1][N+1]; //< elevation in fractal surface
  float CellArrayL[N+1][N+1]; //< elevation in wadi landscape

  flowinfo dir[N+1][N+1]; //< information about the neighbouring cells  
  float f3 (float delta, float x0, float x1, float x2); //< used in the fractal creation; changed 20070215
  float f4 (float delta, float x0,float x1, float x2, float x3); //< used in the fractal creation; changed 20070215
};

#endif

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