From 6322798b615b44bd97bc9578e9f3e81c1b4f21f7 Mon Sep 17 00:00:00 2001 From: Gabor Kiss-Vamosi Date: Sun, 30 Dec 2018 22:00:23 +0100 Subject: [PATCH] lv_trigo_sin: bugfix for with 179 degree --- lv_misc/lv_math.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/lv_misc/lv_math.c b/lv_misc/lv_math.c index 72538f80d..a0d26053e 100644 --- a/lv_misc/lv_math.c +++ b/lv_misc/lv_math.c @@ -33,7 +33,8 @@ static int16_t sin0_90_table[] = { 25101, 25465, 25821, 26169, 26509, 26841, 27165, 27481, 27788, 28087, 28377, 28659, 28932, 29196, 29451, 29697, 29934, 30162, 30381, 30591, 30791, 30982, 31163, 31335, 31498, 31650, 31794, 31927, 32051, 32165, - 32269, 32364, 32448, 32523, 32587, 32642, 32687, 32722, 32747, 32762 + 32269, 32364, 32448, 32523, 32587, 32642, 32687, 32722, 32747, 32762, + 32767 }; @@ -117,13 +118,13 @@ int16_t lv_trigo_sin(int16_t angle) if(angle < 90) { ret = sin0_90_table[angle]; } else if(angle >= 90 && angle < 180) { - angle = 179 - angle; + angle = 180 - angle; ret = sin0_90_table[angle]; } else if(angle >= 180 && angle < 270) { angle = angle - 180; ret = - sin0_90_table[angle]; } else { /*angle >=270*/ - angle = 359 - angle; + angle = 360 - angle; ret = - sin0_90_table[angle]; }