readreg.cpp File Reference

#include <stdio.h>
#include "gridutil.h"

Include dependency graph for readreg.cpp:

Go to the source code of this file.

Functions
const char *	read_reg (const char *regFile, blockConsumer &dest)

Function Documentation

const char* read_reg	(	const char *	regFile,
		blockConsumer &	dest
	)

Definition at line 63 of file readreg.cpp.

References blockConsumer::allocateBlock(), BLOCKSPAN_FOR, blockConsumer::consume(), cimg_library::cimg::fclose(), cimg_library::cimg::fopen(), blockConsumer::freeBlock(), i, max(), min(), s, and v.

Referenced by read_file().

{
        //Open the input file
        FILE *in=fopen(regFile,"r");
        if (in==NULL) return "Couldn't open input .reg file";

        //Read the block size
        int dimArr[3];
        vector3d min,max;
        for (int axis=0;axis<3;axis++)
        {
                double m;
                if (1!=fscanf(in,"%d",&dimArr[axis]))
                        return "Couldn't read block dimension"; 
                if (1!=fscanf(in,"%lf",&m)) return "Couldn't read block min";
                min[axis]=m;
                if (1!=fscanf(in,"%lf",&m)) return "Couldn't read block max";
                max[axis]=m;
        }
        fclose(in);

        //Allocate return grid
        blockDim dim(dimArr[0],dimArr[1],dimArr[2]);
        vector3d *locs=dest.allocateBlock(dim);
        
        //Fill in the grid
        blockLoc i;
        blockSpan s(blockLoc(0,0,0),dim);
        BLOCKSPAN_FOR(i,s) {
                vector3d v;
                for (int axis=0;axis<3;axis++) {
                        double scl=i[axis]/(float)(dim[axis]-1);
                        v[axis]=min[axis]+scl*(max[axis]-min[axis]);
                }
                locs[dim[i]]=v;
        }
        
        dest.consume(dim,locs); 
        dest.freeBlock(locs);

        return NULL; //Everything worked
}

Here is the call graph for this function:

Here is the caller graph for this function: