Refresh of Graph Element demos

DemoPrograms/Demo_Graph_Element_Bar_Chart.py

@@ -0,0 +1,29 @@
+import PySimpleGUI as sg
+import random
+
+BAR_WIDTH = 50
+BAR_SPACING = 75
+EDGE_OFFSET = 3
+GRAPH_SIZE = (500,500)
+DATA_SIZE = (500,500)
+
+graph = sg.Graph(GRAPH_SIZE, (0,0), DATA_SIZE)
+
+layout = [[sg.Text('Bar graphs using PySimpleGUI')],
+          [graph],
+          [sg.Button('OK')]]
+
+window = sg.Window('Window Title', layout)
+
+while True:
+    event, values = window.Read()
+    graph.Erase()
+    if event is None:
+        break
+
+    for i in range(7):
+        graph_value = random.randint(0, 400)
+        graph.DrawRectangle(top_left=(i * BAR_SPACING + EDGE_OFFSET, graph_value),
+                            bottom_right=(i * BAR_SPACING + EDGE_OFFSET + BAR_WIDTH, 0), fill_color='blue')
+        graph.DrawText(text=graph_value, location=(i*BAR_SPACING+EDGE_OFFSET+25, graph_value+10))
+window.Close()

DemoPrograms/Demo_Graph_Element_Sine_Wave.py

@@ -8,18 +8,18 @@ SIZE_Y = 100
 NUMBER_MARKER_FREQUENCY = 25
 
 def draw_axis():
-    graph.DrawLine((-SIZE_X,0), (SIZE_X, 0))                # axis lines
-    graph.DrawLine((0,-SIZE_Y), (0,SIZE_Y))
+    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.DrawLine((x,-3), (x,3))                       # tick marks
+        graph.draw_line((x,-3), (x,3))                       # tick marks
         if x != 0:
-            graph.DrawText( str(x), (x,-10), color='green')      # numeric labels
+            graph.draw_text( str(x), (x,-10), color='green', font='Algerian 15')      # numeric labels
 
     for y in range(-SIZE_Y, SIZE_Y+1, NUMBER_MARKER_FREQUENCY):
-        graph.DrawLine((-3,y), (3,y))
+        graph.draw_line((-3,y), (3,y))
         if y != 0:
-            graph.DrawText( str(y), (-10,y), color='blue')
+            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),
@@ -30,22 +30,22 @@ graph = sg.Graph(canvas_size=(400, 400),
 # 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('y = sin(x / x2 * x1)', font='Algerian 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()
+    event, values = window.read()
     if event is None:
         break
-    graph.Erase()
+    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.DrawLine((prev_x, prev_y), (x,y), color='red')
+            graph.draw_line((prev_x, prev_y), (x,y), color='red')
         prev_x, prev_y = x, y