python通过PyGame绘制图像并保存为图片文件

概述python通过PyGame绘制图像并保存为图片文件

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''' pg_draw_circle_save101.pydraw a blue solID circle on a white backgroundsave the drawing to an image filefor result see http://prntscr.com/156wxitested with Python 2.7 and PyGame 1.9.2 by vegaseat  16may2013''' import pygame as pg # pygame uses (r,g,b) color tupleswhite = (255,255,255)blue = (0,255) wIDth = 300height = 300 # create the display windowwin = pg.display.set_mode((wIDth,height))# optional Title bar captionpg.display.set_caption("Pygame draw circle and save")# default background is black,so make it whitewin.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 outlinewIDth = 0# draw.circle(Surface,color,pos,radius,wIDth)pg.draw.circle(win,blue,center,wIDth) # Now save the drawing# can save as .bmp .tga .png or .jpgfname = "circle_blue.png"pg.image.save(win,fname)print("file {} has been saved".format(fname)) # update the display window to show the drawingpg.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

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