#! /usr/bin/python3 # ============================================================ # Code found on the web # Note: the original code had errors # ============================================================ # graphics.py is built on tk. This code works with # graphics.py 5.0 and allows you to access the underlying tk # methods, for example, create_arc(...). # ============================================================ import graphics as gr import tkinter as tk # import tkinter for arc styles def draw_arc_in_graphics_py(): print(f'graphics.py version {gr.__version__}') print(f'Tkinter Tk version {tk.TkVersion}') # ---- graphics window/canvas win = gr.GraphWin('Arc Example', 400, 400) win.setBackground('white') # ---- define bounding box coordinates (x0, y0, x1, y1) x0, y0 = 50, 50 x1, y1 = 350, 350 # ---- draw a simple arc win.create_arc(x0, y0, x1, y1, start=0, extent=90, style=tk.ARC, outline='blue', width=2) # ---- draw a pieslice arc win.create_arc(x0, y0, x1, y1, start=180, extent=120, style=tk.PIESLICE, fill='red') # ---- draw a chord arc win.create_arc(x0, y0, x1, y1, start=270, extent=60, style=tk.CHORD, outline='green', width=3) # ---- wait to end program win.getMouse() win.close() if __name__ == '__main__': draw_arc_in_graphics_py()

#! /usr/bin/python3 # ============================================================ # draw a half circle # ============================================================ import graphics as gr import tkinter as tk # import tkinter for arc styles def draw_arc_in_graphics_py(): print(f'graphics.py version {gr.__version__}') print(f'Tkinter Tk version {tk.TkVersion}') # ---- graphics window/canvas width = 400 height = 400 win = gr.GraphWin("Half Circle Example", width, height) win.setBackground('white') wintop = gr.Line(gr.Point(0,0),gr.Point(width-1,0)) wintop.setWidth(1) wintop.setFill('black') wintop.draw(win) # ---- draw X,Y axes xaxis = gr.Line(gr.Point(0,height/2), gr.Point(width-1,height/2)) xaxis.setWidth(1) xaxis.setFill('blue') xaxis.draw(win) yaxis = gr.Line(gr.Point(width/2,0), gr.Point(width/2,height-1)) yaxis.setWidth(1) yaxis.setFill('blue') yaxis.draw(win) # ---- define bounding box coordinates (x0, y0, x1, y1) x0, y0 = 50, 50 x1, y1 = 350, 350 # ---- draw bounding box l1 = gr.Line(gr.Point(x0,y0),gr.Point(x1,y0)) l1.setWidth(1) l1.setFill('red') l1.draw(win) l2 = gr.Line(gr.Point(x1,y0),gr.Point(x1,y1)) l2.setWidth(1) l2.setFill('red') l2.draw(win) l3 = gr.Line(gr.Point(x1,y1),gr.Point(x0,y1)) l3.setWidth(1) l3.setFill('red') l3.draw(win) l4 = gr.Line(gr.Point(x0,y1),gr.Point(x0,y0)) l4.setWidth(1) l4.setFill('red') l4.draw(win) # ---- draw a half circle win.create_arc(x0, y0, x1, y1, start=-90, extent=180, style=tk.ARC, outline='black', width=2) # ---- wait to end program win.getMouse() win.close() if __name__ == '__main__': draw_arc_in_graphics_py()