本文实例讲述了Python判断直线和矩形是否相交的方法。分享给大家供大家参考。具体实现方法如下:
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""" A(ax,ay),B(px,py)为两个点 (x1,y1),(x2,y2)为矩形的左上角和右下角坐标 ,判断A,B两点是否和矩形相交 """ def Judge(ax, ay, px, py, x1, y1, x2, y2): #转换为真除法 ax, ay, px, py = float (ax), float (ay), float (px), float (py) x1, y1, x2, y2 = float (x1), float (y1), float (x2), float (y2) #判断矩形上边线和两点直线相交的点 sx = (y1 - ay) * (px - ax) / (py - ay) + ax if sx > = x1 and sx < = x2: return True #判断矩形下边线和两点直线相交的点 xx = (y1 - ay) * (px - ax) / (py - ay) + ax if sx > = x1 and sx < = x2: return True #判断矩形左边线和两点直线相交的点 zy = (y2 - ay) * (x2 - ax) / (px - ax) + ay if zy > = y1 and zy < = y2: return True #判断矩形右边线和两点直线相交的点 yy = (y2 - ay) * (x2 - ax) / (px - ax) + ay if yy < = y1 and yy > = y2: return True return False ax = raw_input () ay = input () px = input () py = input () x1 = input () y1 = input () x2 = input () y2 = input () print Judge(ax, ay, px, py, x1, y1, x2, y2) |
希望本文所述对大家的Python程序设计有所帮助。