From 0a5d6714b2676e7c1e348511384db68c68946af2 Mon Sep 17 00:00:00 2001 From: hanemile Date: Mon, 1 Jan 2018 16:56:23 +0100 Subject: implemented writing to file using c --- src/a.out | Bin 0 -> 13200 bytes src/lookup.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 74 insertions(+) create mode 100755 src/a.out create mode 100644 src/lookup.c (limited to 'src') diff --git a/src/a.out b/src/a.out new file mode 100755 index 0000000..6a6368d Binary files /dev/null and b/src/a.out differ diff --git a/src/lookup.c b/src/lookup.c new file mode 100644 index 0000000..01b5508 --- /dev/null +++ b/src/lookup.c @@ -0,0 +1,74 @@ +#include +#include +#include + +// 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; + +// Define the directory where the data shall be stored + +// Prototype +float rho(float r); +float phi(float x); + +int main(int argc, char *argv[] ){ + if( argc == 2 ) { + printf("Generating %s Values...\n", argv[1]); + + FILE * fp = fopen("testFile.csv", "w+"); + if(fp == NULL){ + printf("Error opening the file!\n"); + exit(1); + } + + int x = atoi(argv[1]); + + for(int i = 0; i < x; i++){ + fprintf(fp, "%d, %f\n", i, phi(i)); + } + + // for(int i = 0; i < 1e7; i = i + 1e4){ + // printf("%s, %f\n", i, phi(i)); + // } + + fclose(fp); + + } + else if( argc > 2 ) { + printf("Too many arguments supplied.\n"); + return 0; + } + else { + printf("One argument expected.\n"); + return 0; + } + + return 0; +} + +// 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 From af0b25e9d5c28e6c7062602d0797b2ff983ea9d3 Mon Sep 17 00:00:00 2001 From: hanemile Date: Mon, 1 Jan 2018 18:30:13 +0100 Subject: [milestone] print the lookuptable --- src/a.out | Bin 13200 -> 13168 bytes src/lookup.c | 2 +- 2 files changed, 1 insertion(+), 1 deletion(-) (limited to 'src') diff --git a/src/a.out b/src/a.out index 6a6368d..f97661d 100755 Binary files a/src/a.out and b/src/a.out differ diff --git a/src/lookup.c b/src/lookup.c index 01b5508..ef13a05 100644 --- a/src/lookup.c +++ b/src/lookup.c @@ -31,7 +31,7 @@ int main(int argc, char *argv[] ){ int x = atoi(argv[1]); for(int i = 0; i < x; i++){ - fprintf(fp, "%d, %f\n", i, phi(i)); + printf("%d, %f\n", i, phi(i)); } // for(int i = 0; i < 1e7; i = i + 1e4){ -- cgit 1.4.1 From f6d0ee87d389bdb9c1cbac7bc9d38dccf989165c Mon Sep 17 00:00:00 2001 From: hanemile Date: Mon, 1 Jan 2018 18:32:25 +0100 Subject: [milestone] write the lookuptable to a file for further use --- src/a.out | Bin 13168 -> 13200 bytes src/lookup.c | 2 +- src/testFile.csv | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1001 insertions(+), 1 deletion(-) create mode 100644 src/testFile.csv (limited to 'src') diff --git a/src/a.out b/src/a.out index f97661d..6a6368d 100755 Binary files a/src/a.out and b/src/a.out differ diff --git a/src/lookup.c b/src/lookup.c index ef13a05..01b5508 100644 --- a/src/lookup.c +++ b/src/lookup.c @@ -31,7 +31,7 @@ int main(int argc, char *argv[] ){ int x = atoi(argv[1]); for(int i = 0; i < x; i++){ - printf("%d, %f\n", i, phi(i)); + fprintf(fp, "%d, %f\n", i, phi(i)); } // for(int i = 0; i < 1e7; i = i + 1e4){ diff --git a/src/testFile.csv b/src/testFile.csv new file mode 100644 index 0000000..6089101 --- /dev/null +++ b/src/testFile.csv @@ -0,0 +1,1000 @@ +0, -540605.250000 +1, -540668.000000 +2, -540640.937500 +3, -540613.937500 +4, -540425.875000 +5, -540431.062500 +6, -540425.500000 +7, -540413.812500 +8, -540398.375000 +9, -540380.312500 +10, -540360.375000 +11, 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2001 From: hanemile Date: Mon, 1 Jan 2018 20:11:15 +0100 Subject: update --- src/c/lookup | Bin 0 -> 13200 bytes src/c/lookup.c | 74 +++++++++++++++++++++++++++++++++++++++ src/c/read | Bin 0 -> 12880 bytes src/c/read.c | 52 ++++++++++++++++++++++++++++ src/c/testFile.csv | 100 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 226 insertions(+) create mode 100755 src/c/lookup create mode 100644 src/c/lookup.c create mode 100755 src/c/read create mode 100644 src/c/read.c create mode 100644 src/c/testFile.csv (limited to 'src') diff --git a/src/c/lookup b/src/c/lookup new file mode 100755 index 0000000..6a6368d Binary files /dev/null and b/src/c/lookup differ diff --git a/src/c/lookup.c b/src/c/lookup.c new file mode 100644 index 0000000..01b5508 --- /dev/null +++ b/src/c/lookup.c @@ -0,0 +1,74 @@ +#include +#include +#include + +// 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; + +// Define the directory where the data shall be stored + +// Prototype +float rho(float r); +float phi(float x); + +int main(int argc, char *argv[] ){ + if( argc == 2 ) { + printf("Generating %s Values...\n", argv[1]); + + FILE * fp = fopen("testFile.csv", "w+"); + if(fp == NULL){ + printf("Error opening the file!\n"); + exit(1); + } + + int x = atoi(argv[1]); + + for(int i = 0; i < x; i++){ + fprintf(fp, "%d, %f\n", i, phi(i)); + } + + // for(int i = 0; i < 1e7; i = i + 1e4){ + // printf("%s, %f\n", i, phi(i)); + // } + + fclose(fp); + + } + else if( argc > 2 ) { + printf("Too many arguments supplied.\n"); + return 0; + } + else { + printf("One argument expected.\n"); + return 0; + } + + return 0; +} + +// 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); + } +} diff --git a/src/c/read b/src/c/read new file mode 100755 index 0000000..97751d7 Binary files /dev/null and b/src/c/read differ diff --git a/src/c/read.c b/src/c/read.c new file mode 100644 index 0000000..109c603 --- /dev/null +++ b/src/c/read.c @@ -0,0 +1,52 @@ +#include +#include +#include +#include + +// Define some constants +int range = 100; + +// Prototype pythagoras function +float pythagoras(int x, int y, int z); + +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 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 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])); + + } + + // 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; +} + +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; +} diff --git a/src/c/testFile.csv b/src/c/testFile.csv new file mode 100644 index 0000000..3568a06 --- /dev/null +++ b/src/c/testFile.csv @@ -0,0 +1,100 @@ +0, -540605.250000 +1, -540668.000000 +2, -540640.937500 +3, -540613.937500 +4, -540425.875000 +5, -540431.062500 +6, -540425.500000 +7, -540413.812500 +8, -540398.375000 +9, -540380.312500 +10, -540360.375000 +11, -540280.750000 +12, -540263.562500 +13, -540244.812500 +14, -540224.875000 +15, -540204.062500 +16, -540182.437500 +17, -540160.187500 +18, -540101.687500 +19, -540080.375000 +20, -540058.500000 +21, -540036.125000 +22, -540013.312500 +23, -539990.187500 +24, -539966.812500 +25, -539943.062500 +26, -539894.375000 +27, -539871.062500 +28, -539847.500000 +29, -539823.750000 +30, -539799.812500 +31, -539775.687500 +32, -539751.312500 +33, -539707.375000 +34, -539683.375000 +35, -539659.125000 +36, -539634.750000 +37, -539610.312500 +38, -539585.687500 +39, -539560.937500 +40, -539520.000000 +41, -539495.562500 +42, -539470.875000 +43, -539446.125000 +44, -539421.312500 +45, -539396.375000 +46, -539371.375000 +47, -539332.625000 +48, -539307.750000 +49, -539282.812500 +50, -539257.812500 +51, -539232.687500 +52, -539207.562500 +53, -539182.312500 +54, -539145.187500 +55, -539120.062500 +56, -539094.937500 +57, -539069.687500 +58, -539044.437500 +59, -539019.125000 +60, -538993.750000 +61, -538968.312500 +62, -538932.562500 +63, -538907.187500 +64, -538881.812500 +65, -538856.375000 +66, -538830.937500 +67, -538805.437500 +68, -538779.937500 +69, -538745.125000 +70, -538719.687500 +71, -538694.125000 +72, -538668.625000 +73, -538643.125000 +74, -538617.500000 +75, -538591.875000 +76, -538557.812500 +77, -538532.312500 +78, -538506.750000 +79, -538481.062500 +80, -538455.437500 +81, -538429.812500 +82, -538404.187500 +83, -538370.750000 +84, -538345.125000 +85, -538319.437500 +86, -538293.750000 +87, -538268.062500 +88, -538242.375000 +89, -538216.625000 +90, -538183.750000 +91, -538158.062500 +92, -538132.312500 +93, -538106.625000 +94, -538080.875000 +95, -538055.125000 +96, -538029.312500 +97, -538003.500000 +98, -537971.187500 +99, -537945.437500 -- cgit 1.4.1 From eed019682e3d54334fbcb3b9a612086cfb9d4295 Mon Sep 17 00:00:00 2001 From: hanemile Date: Mon, 1 Jan 2018 20:48:48 +0100 Subject: merged the two files langfassung.c and read.c --- src/c/lookup | Bin 13200 -> 0 bytes src/c/lookup.c | 74 ---------------------------------------------------- src/c/read | Bin 12880 -> 13456 bytes src/c/read.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 81 insertions(+), 74 deletions(-) delete mode 100755 src/c/lookup delete mode 100644 src/c/lookup.c (limited to 'src') diff --git a/src/c/lookup b/src/c/lookup deleted file mode 100755 index 6a6368d..0000000 Binary files a/src/c/lookup and /dev/null differ diff --git a/src/c/lookup.c b/src/c/lookup.c deleted file mode 100644 index 01b5508..0000000 --- a/src/c/lookup.c +++ /dev/null @@ -1,74 +0,0 @@ -#include -#include -#include - -// 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; - -// Define the directory where the data shall be stored - -// Prototype -float rho(float r); -float phi(float x); - -int main(int argc, char *argv[] ){ - if( argc == 2 ) { - printf("Generating %s Values...\n", argv[1]); - - FILE * fp = fopen("testFile.csv", "w+"); - if(fp == NULL){ - printf("Error opening the file!\n"); - exit(1); - } - - int x = atoi(argv[1]); - - for(int i = 0; i < x; i++){ - fprintf(fp, "%d, %f\n", i, phi(i)); - } - - // for(int i = 0; i < 1e7; i = i + 1e4){ - // printf("%s, %f\n", i, phi(i)); - // } - - fclose(fp); - - } - else if( argc > 2 ) { - printf("Too many arguments supplied.\n"); - return 0; - } - else { - printf("One argument expected.\n"); - return 0; - } - - return 0; -} - -// 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); - } -} diff --git a/src/c/read b/src/c/read index 97751d7..9724dee 100755 Binary files a/src/c/read and b/src/c/read differ diff --git a/src/c/read.c b/src/c/read.c index 109c603..48ece4b 100644 --- a/src/c/read.c +++ b/src/c/read.c @@ -6,8 +6,21 @@ // 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 @@ -20,6 +33,10 @@ int main(int argc, char *argv[] ){ // 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; @@ -27,6 +44,10 @@ int main(int argc, char *argv[] ){ 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]); @@ -34,6 +55,45 @@ int main(int argc, char *argv[] ){ } + /* + 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 @@ -42,6 +102,7 @@ int main(int argc, char *argv[] ){ return 0; } +// Define the Pythagorean theorem float pythagoras(int x, int y, int z){ float a = pow(x, 2); float b = pow(y, 2); @@ -50,3 +111,23 @@ float pythagoras(int x, int y, int z){ 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