Let say I have this snippet to draw a line.

```
[path moveToPoint:CGPointMake(x + cellWidth * i + kLineThickness, y)];
[path addLineToPoint:CGPointMake(x + cellWidth *i + kLineThickness, y + cellWidth * cells + kLineThickness)];

```

Where does the pixel of the line begin? Does it divide the line thickness evenly on both side?