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authorGiovani Espindola2017-10-20 12:19:02 +0000
committerJohn Crispin2018-02-12 14:39:31 +0000
commit928cb537aa6a1951ff503b4d13f3c78cead7b581 (patch)
tree2539408edf1dd6d42b70a1889a45af741ade1e00
parentc30055a685bca1e81ccc8f4bd3bb08d780a7d762 (diff)
downloadugps-928cb537aa6a1951ff503b4d13f3c78cead7b581.tar.gz
ugps: Only convert lat and lon to negative after parsing
This is a bugfix for package ugps. Current code parses following GPRMC $GPRMC,185834.0,A,2335.766399,S,04635.923564,W,0.0,,191017,0.0,E,A*20 as position: -22.929440 -45.932056 with this fix it's being parsed correctly as position: -23.596106 -46.598721 Signed-off-by: Giovani Milanez Espindola <gespindola@advantech-bb.com> >From 092b311a3c8911ce9da3f913787b77397e88b4a8 Mon Sep 17 00:00:00 2001 From: Giovani Espindola <gespindola@advantech-bb.com> Date: Thu, 19 Oct 2017 15:54:05 -0200 Subject: [PATCH] Only convert lat and lon to negative after parsing
-rw-r--r--nmea.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/nmea.c b/nmea.c
index 275f39f..1a3f94f 100644
--- a/nmea.c
+++ b/nmea.c
@@ -123,11 +123,6 @@ nmea_rmc_cb(void)
float lat = strtof(nmea_params[3].str, NULL);
float lon = strtof(nmea_params[5].str, NULL);
- if (*nmea_params[4].str == 'S')
- lat *= -1.0;
- if (*nmea_params[6].str == 'W')
- lon *= -1.0;
-
degrees = floor(lat / 100.0);
minutes = lat - (degrees * 100.0);
lat = degrees + minutes / 60.0;
@@ -136,6 +131,11 @@ nmea_rmc_cb(void)
minutes = lon - (degrees * 100.0);
lon = degrees + minutes / 60.0;
+ if (*nmea_params[4].str == 'S')
+ lat *= -1.0;
+ if (*nmea_params[6].str == 'W')
+ lon *= -1.0;
+
snprintf(latitude, sizeof(latitude), "%f", lat);
snprintf(longitude, sizeof(longitude), "%f", lon);