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import PySimpleGUI as sg
import math
# Yet another usage of Graph element.
SIZE_X = 200
SIZE_Y = 100
NUMBER_MARKER_FREQUENCY = 25
def draw_axis():
graph.draw_line((-SIZE_X, 0), (SIZE_X, 0)) # axis lines
graph.draw_line((0, -SIZE_Y), (0, SIZE_Y))
for x in range(-SIZE_X, SIZE_X+1, NUMBER_MARKER_FREQUENCY):
graph.draw_line((x, -3), (x, 3)) # tick marks
if x != 0:
# numeric labels
graph.draw_text(str(x), (x, -10), color='green')
for y in range(-SIZE_Y, SIZE_Y+1, NUMBER_MARKER_FREQUENCY):
graph.draw_line((-3, y), (3, y))
if y != 0:
graph.draw_text(str(y), (-10, y), color='blue')
# Create the graph that will be put into the window
graph = sg.Graph(canvas_size=(400, 400),
graph_bottom_left=(-(SIZE_X+5), -(SIZE_Y+5)),
graph_top_right=(SIZE_X+5, SIZE_Y+5),
background_color='white',
key='graph')
# Window layout
layout = [[sg.Text('Example of Using Math with a Graph', justification='center', size=(50, 1), relief=sg.RELIEF_SUNKEN)],
[graph],
[sg.Text('y = sin(x / x2 * x1)', font='COURIER 18')],
[sg.Text('x1'), sg.Slider((0, 200), orientation='h',
enable_events=True, key='-SLIDER-')],
[sg.Text('x2'), sg.Slider((1, 200), orientation='h', enable_events=True, key='-SLIDER2-')]]
window = sg.Window('Graph of Sine Function', layout)
while True:
event, values = window.read()
if event is None:
break
graph.erase()
draw_axis()
prev_x = prev_y = None
for x in range(-SIZE_X, SIZE_X):
y = math.sin(x/int(values['-SLIDER2-']))*int(values['-SLIDER-'])
if prev_x is not None:
graph.draw_line((prev_x, prev_y), (x, y), color='red')
prev_x, prev_y = x, y
window.close()
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