arheznes -4 years ago 137
Java Question

# Java - Circle Fractal

Please help me! I draw circle fractal but I can only draw the left side or right side. How can I draw the two sides?

enter image description here

``````public class ZZZ {
public static void main(String[] args) {
StdDraw.setCanvasSize(1024,1024);
StdDraw.setXscale(-15,15);
StdDraw.setYscale(-15,15);
double x=0.0;
double y=0.0;
double r=5.0;
StdDraw.circle(x, y, r);
int j=StdRandom.uniform(2);
for(int s=1;s<10;s++){
x=x+r;
r=r/3*2;
StdDraw.circle(x, y, r);
}
int k=StdRandom.uniform(2);
for(int i=1;i<10;i++){
x=x-r;
r=r/3*2;
StdDraw.circle(x, y, r);
}}}
``````

You should reset `x` back to `0` and `r` back to `5` before drawing circles in the second `for`-loop. So your code should look like following:

``````public class ZZZ {
public static void main(String[] args) {
StdDraw.setCanvasSize(1024,1024);
StdDraw.setXscale(-15,15);
StdDraw.setYscale(-15,15);

double x=0.0;
double y=0.0;
double r=5.0;

StdDraw.circle(x, y, r);

int j=StdRandom.uniform(2);
for(int s=1;s<10;s++){
x=x+r;
r=r/3*2;
StdDraw.circle(x, y, r);
}

x = 0.0;
r = 5.0;
int k=StdRandom.uniform(2);
for(int i=1;i<10;i++){
x=x-r;
r=r/3*2;
StdDraw.circle(x, y, r);
}
}
}
``````
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