import sys
if sys.version_info[0] >= 3:
    import PySimpleGUI as sg
else:
    import PySimpleGUI27 as sg
import math

layout = [[sg.T('Example of Using Math with a Graph', justification='center',
                size=(50,1), relief=sg.RELIEF_SUNKEN)],
          [sg.Graph(canvas_size=(400, 400),
                   graph_bottom_left=(-105,-105),
                   graph_top_right=(105,105),
                   background_color='white',
                   key='graph')],]

window = sg.Window('Graph of Sine Function', grab_anywhere=True).Layout(layout).Finalize()

graph = window.FindElement('graph')

# Draw axis
graph.DrawLine((-100,0), (100,0))
graph.DrawLine((0,-100), (0,100))

for x in range(-100, 101, 20):
    graph.DrawLine((x,-3), (x,3))
    if x != 0:
        graph.DrawText( x, (x,-10), color='green')

for y in range(-100, 101, 20):
    graph.DrawLine((-3,y), (3,y))
    if y != 0:
        graph.DrawText( y, (-10,y), color='blue')


# Draw Graph
for x in range(-100,100):
    y = math.sin(x/30)*50
    graph.DrawCircle((x,y), 1, line_color='red', fill_color='red')

event, values = window.Read()