parratt.c File Reference

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Detailed Description

Contains the main function and utility functions

Functions
int	main (int argc, char **argv)
	The main function.
void	error (char *msg)
	Terminating error function.
void	doFit (Parratt *par)
	Extraneous function for doing the fit.

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Function Documentation

int main	(	int	argc,
		char **	argv
	)

The main function accepts one input file only.

{   
    Parratt *parratt;
    
    if (argc != 2) error("No input files.");
    
    parratt = initParratt(argv[1]);

    if (parratt->s.doit) 
    {
        doFit(parratt);
    
        reportParratt(parratt);
        outputProfile(parratt);
        outputReflectivity(parratt);
        
        /* Put these into a free function? */
        free(parratt->d1.xpt);
        free(parratt->d1.ypt);
        free(parratt->d1.sig);
        if (parratt->s.pntp == POLARIZED)
        {
            free(parratt->d2.xpt);
            free(parratt->d2.ypt);
            free(parratt->d2.sig);
        }
        free(parratt);
    }
    else 
    {
        reportParratt(parratt);
        outputProfile(parratt);
        outputReflectivity(parratt);
        
        free(parratt);
    }
    
    return(EXIT_SUCCESS);
}

void error

(

char *

msg

)

This function is called for terminating errors.

{
    fprintf(stdout, "\nParratt: Error: %s\n\n", msg);
    exit(EXIT_FAILURE);
}

void doFit

(

Parratt *

par

)

As a suggestion for future expansion, this function shows how the fitting routine might be initialized from inside another function, such as a button callback.

{
    /* 1. Store the parameters */
    /* 2. Do fit               */
    fit_method.solv_type(par);
    /* 3. Ask if keep fit      */
    /* YES - return            */
    /* NO - restore old params */
    return;
}

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