graphics

Author: furas

pygame/set-window-position/README.md

@@ -0,0 +1,38 @@
+`PyGame` which uses `SDL 1.2` doesn't have function to set window position.
+
+And you can't move window which can't have frame.
+
+    import os
+    import pygame
+
+    pygame.init()
+
+    os.environ['SDL_VIDEO_WINDOW_POS'] = '50, 500'
+    screen = pygame.display.set_mode((300,300), 32, pygame.NOFRAME)
+
+    (2)
+    pygame.quit()
+
+To move to new place you can change `SDL_VIDEO_WINDOW_POS` but you have to use `set_mode()` again.
+
+To center window you can use `SDL_VIDEO_CENTERED`
+
+    import os
+    import pygame
+
+    pygame.init()
+
+    os.environ['SDL_VIDEO_CENTERED'] = '1'
+    screen = pygame.display.set_mode((300,300), 32, pygame.NOFRAME)
+
+    time.sleep(2)
+    pygame.quit()
+
+If you used `SDL_VIDEO_WINDOW_POS` then you have to delete this to use `SDL_VIDEO_CENTERED`
+
+    del os.environ['SDL_VIDEO_WINDOW_POS']
+    os.environ['SDL_VIDEO_CENTERED'] = '1'
+
+---
+
+SDL doc: https://www.libsdl.org/release/SDL-1.2.15/docs/html/sdlenvvars.html

pygame/set-window-position/example-1.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+
+#
+# Bartłomiej "furas" Burek
+#
+# doc: https://www.libsdl.org/release/SDL-1.2.15/docs/html/sdlenvvars.html
+#
+
+import os
+import pygame
+
+pygame.init()
+
+# ---
+
+print('pos: 50, 500')
+
+os.environ['SDL_VIDEO_WINDOW_POS'] = '50, 500'
+
+screen = pygame.display.set_mode((300,300), 32, pygame.NOFRAME)
+
+pygame.time.delay(2000)
+
+# ---
+
+print('pos: 500, 50')
+
+os.environ['SDL_VIDEO_WINDOW_POS'] = '500, 50'
+
+screen = pygame.display.set_mode((300,300), 32, pygame.NOFRAME)
+
+pygame.time.delay(2000)
+
+# ---
+
+print('pos: center')
+
+del os.environ['SDL_VIDEO_WINDOW_POS']
+os.environ['SDL_VIDEO_CENTERED'] = '1'
+
+screen = pygame.display.set_mode((300,300), 32, pygame.NOFRAME)
+
+pygame.time.delay(2000)
+
+# ---
+
+pygame.quit()

zella-graphics/arc-chord-pie/README.md

@@ -1 +1,20 @@
 
+`Graphics` use `Tkinter` in background which has more usefull functions.
+
+It can draw `arc`, `chord`, `pie`.
+
+Tkinter: [Canvas](http://effbot.org/tkinterbook/canvas.htm) and [more](http://effbot.org/tkinterbook/tkinter-index.htm)
+
+## example-1.py
+
+![#3](screenshots/arc-chord-pie-1.png?raw=true)
+
+## example-2.py
+
+The same as `example-1` but it uses `after()` to animate - move around center.
+
+![#3](screenshots/arc-chord-pie-1.png?raw=true)
+
+## eye.py
+
+![#1](screenshots/eye.png?raw=true)

zella-graphics/arc-chord-pie/example-1.py

@@ -0,0 +1,23 @@
+from graphics import *
+
+# --- constants ---
+
+WIDTH = 300
+HEIGHT = 300
+
+# --- main ----
+
+win = GraphWin("Patch", WIDTH, HEIGHT)
+
+# area used by full circle
+bbox = (5, 5, WIDTH-5, HEIGHT-5)
+
+# create parts of circle - arc, chord, pieslice
+win.create_arc(bbox, fill="red", outline='green', width=3, start=0,   extent=90, style='arc')
+win.create_arc(bbox, fill="red", outline='green', width=3, start=95,  extent=90, style='chord')
+win.create_arc(bbox, fill="red", outline='green', width=3, start=190, extent=90, style='pieslice')
+
+#win.getKey()
+win.getMouse()
+
+win.close()

zella-graphics/arc-chord-pie/main.py renamed to zella-graphics/arc-chord-pie/example-2.py

@@ -9,10 +9,10 @@
 
 def moves():
 
-    # move figure 1    
+    # move figure 1
     s = win.itemcget(fig1, 'start')
     win.itemconfig(fig1, start=float(s)+5)
-    
+
     # move figure 2
     s = win.itemcget(fig2, 'start')
     win.itemconfig(fig2, start=float(s)+5)
@@ -30,15 +30,12 @@ def moves():
 
 bbox = (5, 5, WIDTH-5, HEIGHT-5)
 
-#fig1 = win.create_arc(bbox, fill="red", outline='green', width=3, start=0,   extent=90, style='arc')
-#fig2 = win.create_arc(bbox, fill="red", outline='green', width=3, start=95,  extent=90, style='chord')
-#fig3 = win.create_arc(bbox, fill="red", outline='green', width=3, start=190, extent=90, style='pieslice')
-
-win.create_arc((0, -75, 300, 225), fill="blue", outline="blue", extent=120, style='chord', start=30+180)
-win.create_arc((0, 75, 300, 375),  fill="blue", outline="blue", extent=120, style='chord', start=30)
+fig1 = win.create_arc(bbox, fill="red", outline='green', width=3, start=0,   extent=90, style='arc')
+fig2 = win.create_arc(bbox, fill="red", outline='green', width=3, start=95,  extent=90, style='chord')
+fig3 = win.create_arc(bbox, fill="red", outline='green', width=3, start=190, extent=90, style='pieslice')
 
-# run first time
-#moves()
+# run first time - to start animation
+moves()
 
 #win.getKey()
 win.getMouse()