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

int main(void) {
    int i;
    double j;

    start();
    rulers();
 
    stroke(rgb255(0, 0, 255));
    for(j=1; j<4; j*=1.3){
        strokeWeight(j/3.5);
        for(i=5; i<=20; i++){
            strokeOpacity(i*0.065);
            line((i-5)*297.0/16, 30+j*5, (i-4)*297.0/16, 30+j*5);
            line(-(i-21)*297.0/16, 180-j*5, -(i-20)*297.0/16, 180-j*5);
        }
    }

    stroke(rgb255(0, 255, 0));
    for(j=1; j<4; j*=1.3){
        strokeWeight(j/2);
        for(i=5; i<=20; i++){
            strokeOpacity(i*0.065);
            line(30+j*5, -(i-21)*153.0/16+28.5, 30+j*5, -(i-20)*153.0/16+28.5);
            line(265-j*5, (i-5)*153.0/16+28.5, 265-j*5, (i-4)*153.0/16+28.5);
        }
    }

    finish();
    return 0;
}