python使用PyGame绘制图像并保存为图片文件的方法

本文实例讲述了python使用PyGame绘制图像并保存为图片文件的方法。分享给大家供大家参考。具体实现方法如下：

    ''' pg_draw_circle_save101.py
    draw a blue solid circle on a white background
    save the drawing to an image file
    for result see http://prntscr.com/156wxi
    tested with Python 2.7 and PyGame 1.9.2 by vegaseat 16may2013
    '''
    import pygame as pg
    # pygame uses (r, g, b) color tuples
    white = (255, 255, 255)
    blue = (0, 0, 255)
    width = 300
    height = 300
    # create the display window
    win = pg.display.set_mode((width, height))
    # optional title bar caption
    pg.display.set_caption("Pygame draw circle and save")
    # default background is black, so make it white
    win.fill(white)
    # draw a blue circle
    # center coordinates (x, y)
    center = (width//2, height//2)
    radius = min(center)
    # width of 0 (default) fills the circle
    # otherwise it is thickness of outline
    width = 0
    # draw.circle(Surface, color, pos, radius, width)
    pg.draw.circle(win, blue, center, radius, width)
    # now save the drawing
    # can save as .bmp .tga .png or .jpg
    fname = "circle_blue.png"
    pg.image.save(win, fname)
    print("file {} has been saved".format(fname))
    # update the display window to show the drawing
    pg.display.flip()
    # event loop and exit conditions
    # (press escape key or click window title bar x to exit)
    while True:
      for event in pg.event.get():
        if event.type == pg.QUIT:
          # most reliable exit on x click
          pg.quit()
          raise SystemExit
        elif event.type == pg.KEYDOWN:
          # optional exit with escape key
          if event.key == pg.K_ESCAPE:
            pg.quit()
            raise SystemExit

希望本文所述对大家的Python程序设计有所帮助。