opti.c

#include "opti.h"
int LINE_POINTS = 1000000;
int CLOUD_POINTS = 1000;
double X_VALUE = 0.000001;
double RANDOMNESS = 0.01;


// y(x)=ax+b
Point* line(double a, double b){
    Point * points = (Point*)malloc(sizeof(Point)*LINE_POINTS);
    double x = 0.0;
    for(int i=0;i<LINE_POINTS-1;i++){
        Point d;
        d.x = x;
        d.y = (a*x)+b;
        points[i]=d;
        //printf("%lf, %lf", d.x, d.y);
        x+=X_VALUE;
    }
    return points;
}

double double_random(double min, double max) 
{
    double my_random;
    my_random = (double)rand()/RAND_MAX*(max-min)+min;
    //printf ( "%f\n", my_random);
    
    return my_random;
}

Point* cloud(Point* a_line){
    Point * my_cloud = (Point*)malloc(sizeof(Point)*CLOUD_POINTS);
    for(int i=0;i<CLOUD_POINTS-1;i++){
        Point chosen_point = a_line[rand()%LINE_POINTS-1];
        double new_y = double_random(chosen_point.y-RANDOMNESS, chosen_point.y+RANDOMNESS);
        my_cloud[i].x=chosen_point.x;
        my_cloud[i].y=new_y;
        printf("\nx = %f | y = %f\n", my_cloud[i].x,my_cloud[i].y);
    }
    return my_cloud;
}

int main (void){
    srand ( time ( NULL));
    Point* first_line = line(7.0, 5.5);
    cloud(first_line);
    printf("\ndone\n");
    return 0;
}