Added scroll wheel support (Linux only right now).

main.py

@@ -28,18 +28,34 @@ Matrix3x3(Vector3d(1.0,0.0,1.0),Vector3d(0.0,0.0,0.0),Vector3d(1.0,0.0,0.0))
 #'''
 #tris = Mesh()
 def main():
-	#tris.load_obj_file('teddy.obj')
+	#tris.load_obj_file('shuttle.obj')
+	ui.scale = 3
 	ui.thetax = 1
 	ui.thetaz = 1
 	ui.window.bind('<Left>', left)
 	ui.window.bind('<Right>', right)
 	ui.window.bind('<Up>', up)
 	ui.window.bind('<Down>', down)
-	ui.window.bind('<ButtonPress-1>', mouse_start)
+	ui.window.bind('<Button-4>', wheel)
+	ui.window.bind('<Button-5>', wheel)
+	#ui.window.bind('<ButtonPress-1>', mouse_start)
 	ui.canvas.bind('<B1-Motion>', mouse_end)
 	ui.canvas.old_coords = None
 	ui.window.after(0, draw_scene)
 	ui.show()
+	
+def wheel(event):
+    # respond to Linux or Windows wheel event
+    #if event.num == 5 or event.delta == -120:
+	if event.num == 4:
+		ui.scale -= .5
+	else:
+		ui.scale += .5
+		
+	if ui.scale < 1.5:
+		ui.scale = 1.5
+		
+	draw_scene()
 
 def left(event):
 	ui.thetaz += .1
@@ -84,7 +100,7 @@ def draw_scene():
 	
 	rotation_matrix_x = Matrix4x4.get_x_rotation_matrix(ui.thetax)
 	
-	translation = Matrix4x4.get_translation_matrix(Vector3d(0, 0, 3))
+	translation = Matrix4x4.get_translation_matrix(Vector3d(0, 0, ui.scale))
 	
 	world_matrix = Matrix4x4.get_identity_matrix()
 	world_matrix = rotation_matrix_z.multiply_matrix(rotation_matrix_x)