-xlimits & ylimits: change the size of the grid. -fidelity: change how many pixels there are in the grid. lower looks better but is laggier and slower. -compensation: how much leeway is allowed in the calculation (look inside to understand it better). -calculate button: regenerates grid.
tests if distance from p1 and p2 == distance from p1 and pixel + distance from p2 and pixel Turbo mode recommended (shift-click the green flag). The project must be running when you press calculate. You can drag p1 and p2 around.
