# Ghost Lines Appearing After some iterations

I’m new to Processing, and am trying a short script to become familiar with it. The script draws and bisects right triangles. It works ok, but after the 5th iteration, it starts to print an extra line, and I can’t seem to find any reason why in the code. The code will draw the new triangle and then a line to a distant point.

I understand there may be other shape functions. I just simply wanted to use the line function for this.

Here’s the code. Could someone tell me if I’m approaching this incorrectly:

``````float x1 = 0;
float y1 = 0;
float x2 = 500;
float y2 = 500;
float x3 = 0;
float y3 = 500;

int count = 0;

int mag = 2;

void setup() {
size(600, 600);
background(255);

}

void drawline() {

line(x1,y1,x2,x2);
line(x2,y2,x3,y3);
line(x3,y3,x1,y1);

}

void nextpoints() {

float x3new = (x2 + x1) / 2;
float y3new = (y2 + y1) / 2;

x1 = x2;
y1 = y2;
x2 = x3;
y2 = y3;
x3 = x3new;
y3 = y3new;

}

void draw() {

//float pwr = pow(10,mag);

//int intpwr = (int) pwr;

int ptsperframe = 1;

count++;

for (int i = 0; i < ptsperframe; i++) {

drawline();
nextpoints();

}

}``````
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Could I get a screenshot?

A typo there. Fix this and it should work.

Kf

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