ossimDblGrid.cpp File Reference

#include <ossim/base/ossimDblGrid.h>
#include <ossim/base/ossimDrect.h>
#include <ossim/base/ossimNotify.h>
#include <ossim/base/ossimTrace.h>
#include <climits>
#include <cstring>
#include <iostream>
#include <vector>

Go to the source code of this file.

Functions
bool	isBlocked (bool *blocked, int x, int y)
void	blockDirection (bool *blocked, int x, int y)
ostream &	operator<< (ostream &os, const ossimDblGrid &grid)

Function Documentation

blockDirection()

void blockDirection	(	bool *	blocked,
		int	x,
		int	y
	)

Definition at line 865 of file ossimDblGrid.cpp.

References x, and y.

{
   if (y == 0)
   {
      if (x > 0) blocked[4] = true;
      else       blocked[12] = true;
      return;
   }

   double r = x/y;
   int c = 0;
   int i;
   if (x < 0.0) c = 8;

   //***
   // Test the tangent value instead of computing angle:
   //***
   if      (r >  5.02734) i = 12 + c;
   else if (r >  1.49660) i = 13 + c;
   else if (r >  0.66818) i = 14 + c;
   else if (r >  0.19891) i = 15 + c;
   else if (r > -0.19891) i =  0 + c;
   else if (r > -0.66818) i =  1 + c;
   else if (r > -1.49660) i =  2 + c;
   else if (r > -5.02734) i =  3 + c;
   else                   i =  4 + c;

   if (i > 15) i -= 16;  // modulo 16
   blocked[i] = true;

   return;
}

isBlocked()

bool isBlocked	(	bool *	blocked,
		int	x,
		int	y
	)

Definition at line 823 of file ossimDblGrid.cpp.

References x, and y.

{
   if (y == 0)
   {
      if (x > 0) return blocked[4];
      return blocked[12];
   }

   double r = x/y;
   int c = 0;
   int i;
   if (x < 0.0) c = 8;

   //***
   // Test the tangent value instead of computing angle:
   //***
   if      (r >  5.02734) i = 12 + c;
   else if (r >  1.49660) i = 13 + c;
   else if (r >  0.66818) i = 14 + c;
   else if (r >  0.19891) i = 15 + c;
   else if (r > -0.19891) i =  0 + c;
   else if (r > -0.66818) i =  1 + c;
   else if (r > -1.49660) i =  2 + c;
   else if (r > -5.02734) i =  3 + c;
   else                   i =  4 + c;

   if (i > 15) i -= 16;  // modulo 16

   return blocked[i];
}

operator<<()

ostream& operator<<	(	ostream &	os,
		const ossimDblGrid &	grid
	)

Definition at line 1212 of file ossimDblGrid.cpp.

References ossimDblGrid::getNode(), ossimDblGrid::theDeviation, ossimDblGrid::theGridData, ossimDblGrid::theMaxValue, ossimDblGrid::theMeanIsComputed, ossimDblGrid::theMeanValue, ossimDblGrid::theMinValue, ossimDblGrid::theNullValue, ossimDblGrid::theOrigin, ossimDblGrid::theSize, ossimDblGrid::theSpacing, ossimIpt::x, x, ossimIpt::y, and y.

{
   os << "\nDump of ossimDblGrid at " << (void*) &grid
      << "\n  theSize: "           << grid.theSize
      << "\n  theOrigin: "         << grid.theOrigin
      << "\n  theSpacing: "        << grid.theSpacing
      << "\n  theMinValue: "       << grid.theMinValue
      << "\n  theMaxValue: "       << grid.theMaxValue
      << "\n  theNullValue: "      << grid.theNullValue
      << "\n  theMeanValue: "      << grid.theMeanValue
      << "\n  theDeviation: "      << grid.theDeviation
      << "\n  theMeanIsComputed: " << grid.theMeanIsComputed
      << "\n";

   if(grid.theGridData)
   {

      for (int y=0; y<grid.theSize.y; y++)
      {
         for (int x=0; x<grid.theSize.x; x++)
         {
            os << "\n  node(" << x << ", " << y << "): " << grid.getNode(x,y);
         }
      }
   }

   return os;
}