From e5d00b1b2e2e7c0684dae7324feb86c36188047b Mon Sep 17 00:00:00 2001 From: hanemile Date: Tue, 16 Jan 2018 15:56:49 +0100 Subject: updated the source --- src/c/read.c | 133 ----------------------------------------------------------- 1 file changed, 133 deletions(-) delete mode 100644 src/c/read.c (limited to 'src/c/read.c') diff --git a/src/c/read.c b/src/c/read.c deleted file mode 100644 index 48ece4b..0000000 --- a/src/c/read.c +++ /dev/null @@ -1,133 +0,0 @@ -#include -#include -#include -#include - -// Define some constants -int range = 100; - -// Define some variables -int sigma = 200; -float f_0 = 0.1; -float R_s = 1e4; - -// Define some constants -float pi = M_PI; -float e = M_E; -float G = 4.302e-3; - -// Prototype pythagoras function -float pythagoras(int x, int y, int z); -// More prototypes -float rho(float r); -float phi(float x); - -int main(int argc, char *argv[] ){ - // Seed random - srand(time(NULL)); - - // Define the number of stars that should be generated using command line - // arguments - long num_of_stars = atoi(argv[1]); - - // define an array to store the coordinates of the stars in - int star_arr[num_of_stars][3]; - - /* - Generate random coordinates - */ - - // generate the random coordinates - for(int i = 0; i < num_of_stars; i++){ - star_arr[i][0] = rand() % range + 1; - star_arr[i][1] = rand() % range + 1; - star_arr[i][2] = rand() % range + 1; - } - - /* - Print out the coordinates - */ - - // print the content of the array star_arr - for(int i = 0; i < num_of_stars; i++){ - printf("%d, %d, %d\n", star_arr[i][0], star_arr[i][1], star_arr[i][2]); - printf("%f\n\n", pythagoras(star_arr[i][0], star_arr[i][1], star_arr[i][2])); - - } - - /* - Generate a lookuptable - */ - - // If the correct amount (2) of command line arguments are given, continue - if( argc == 2 ) { - - // Print out how many stars are being generated - printf("Generating %s Values...\n", num_of_stars); - - // Open a file into which the lookuptable wil be written - FILE * fp = fopen("testFile.csv", "w+"); - - // Abourt if no file is specified - if(fp == NULL){ - printf("Error opening the file!\n"); - exit(1); - } - - // generate the lookuptable - for(int i = 0; i < num_of_stars; i++){ - fprintf(fp, "%d, %f\n", i, phi(i)); - } - - // close the file now containing the lookuptable - fclose(fp); - - } - // Exception: to many arguments - else if( argc > 2 ) { - printf("Too many arguments supplied.\n"); - return 0; - } - // Exception: no argument specified - else { - printf("One argument expected.\n"); - return 0; - } - - // Test if the Star should be generated or not - - // If the star should be generated, write it's coordinates to a file - // Else do nothing - - return 0; -} - -// Define the Pythagorean theorem -float pythagoras(int x, int y, int z){ - float a = pow(x, 2); - float b = pow(y, 2); - float c = pow(z, 2); - float d = a + b + c; - float e = sqrt(d); - return e; -} - -// Define rho function -float rho(float r){ - float a = (1) / ( sqrt(2 * pi) * sigma); - float b = exp( - (phi(r) / pow(sigma, 2) )); - return a; -} - -// Define phi function -float phi(float x){ - if(x == 0) { - float a = -4 * pi * f_0 * G * pow(R_s, 2); - return(a); - } - else { - float a = - (4 * pi * G * f_0 * pow(R_s, 3) / x); - float b = log(1 + (x / R_s) ); - return(a * b); - } -} -- cgit 1.4.1