1 import re 2 from numpy import array 3 4 TIME = 'time' 5 VALUE = 'value' 6 AXIS = 'axis' 7 8 re_xy = re.compile(r'.*time (?P<time>\d+\.\d+), type \d+ \(EV_ABS\), code \d+ \(ABS_(?P<axis>[XY])\), value (?P<value>\d+)') 9 re_tap = re.compile(r'.*time (?P<time>\d+\.\d+), type \d+ \(EV_KEY\), code \d+ \(BTN_TOUCH\), value (?P<value>\d+)') 10 11 12 def load_xy(fname): 13 with open(fname, 'rt') as f: 14 match_iter = (re_xy.search(line) for line in f) 15 events = [m.groupdict() for m in match_iter if m] 16 17 x = array([int(e[VALUE]) for e in events if e[AXIS] == 'X']) 18 tx = array([float(e[TIME]) for e in events if e[AXIS] == 'X']) 19 20 y = array([int(e[VALUE]) for e in events if e[AXIS] == 'Y']) 21 ty = array([float(e[TIME]) for e in events if e[AXIS] == 'Y']) 22 23 return (tx, x, ty, y) 24 25 26 def parse_tap_line(line): 27 m = re_tap.search(line) 28 if not m: 29 return None 30 31 t = float(m.group(TIME)) 32 val = int(m.group(VALUE)) 33 return (t, val) 34
