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Linux build support for some libs

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The following libs can now be built under Linux:

   lib/mathlib
   lib/geo
   lib/geo_lookup

The constants used for ROS are now shared with Linux in
px4_defines.h

Signed-off-by: Mark Charlebois <charlebm@gmail.com>
This commit is contained in:
Mark Charlebois
2015-04-20 10:57:01 -07:00
parent e3f152b5c1
commit 62f8bd6679
5 changed files with 204 additions and 46 deletions
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src/lib/geo/geo.c
+6 -6
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@@ -274,17 +274,17 @@ __EXPORT int globallocalconverter_getref(double *lat_0, double *lon_0, float *al
__EXPORT float get_distance_to_next_waypoint(double lat_now, double lon_now, double lat_next, double lon_next)
{
double lat_now_rad = lat_now / 180.0d * M_PI;
double lon_now_rad = lon_now / 180.0d * M_PI;
double lat_next_rad = lat_next / 180.0d * M_PI;
double lon_next_rad = lon_next / 180.0d * M_PI;
double lat_now_rad = lat_now / (double)180.0 * M_PI;
double lon_now_rad = lon_now / (double)180.0 * M_PI;
double lat_next_rad = lat_next / (double)180.0 * M_PI;
double lon_next_rad = lon_next / (double)180.0 * M_PI;
double d_lat = lat_next_rad - lat_now_rad;
double d_lon = lon_next_rad - lon_now_rad;
double a = sin(d_lat / 2.0d) * sin(d_lat / 2.0d) + sin(d_lon / 2.0d) * sin(d_lon / 2.0d) * cos(lat_now_rad) * cos(lat_next_rad);
double c = 2.0d * atan2(sqrt(a), sqrt(1.0d - a));
double a = sin(d_lat / (double)2.0) * sin(d_lat / (double)2.0) + sin(d_lon / (double)2.0) * sin(d_lon / (double)2.0) * cos(lat_now_rad) * cos(lat_next_rad);
double c = (double)2.0 * atan2(sqrt(a), sqrt((double)1.0 - a));
return CONSTANTS_RADIUS_OF_EARTH * c;
}
src/lib/mathlib/math/Limits.cpp
+1 -1
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@@ -47,7 +47,7 @@
namespace math
{
#ifndef CONFIG_ARCH_ARM
#if !defined(CONFIG_ARCH_ARM) && !defined(__PX4_LINUX)
#define M_PI_F 3.14159265358979323846f
#endif