50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
|
#include <vanetza/asn1/its/Heading.h>
|
||
|
|
#include <vanetza/asn1/its/r2/Heading.h>
|
||
|
|
#include <vanetza/facilities/detail/macros.ipp>
|
||
|
|
#include <vanetza/units/angle.hpp>
|
||
|
|
|
||
|
|
ASSERT_EQUAL_ENUM(HeadingValue_wgs84North);
|
||
|
|
ASSERT_EQUAL_ENUM(HeadingValue_wgs84East);
|
||
|
|
ASSERT_EQUAL_ENUM(HeadingValue_wgs84South);
|
||
|
|
ASSERT_EQUAL_ENUM(HeadingValue_wgs84West);
|
||
|
|
ASSERT_EQUAL_ENUM(HeadingValue_unavailable);
|
||
|
|
|
||
|
|
namespace vanetza
|
||
|
|
{
|
||
|
|
namespace facilities
|
||
|
|
{
|
||
|
|
|
||
|
|
bool is_available(const ASN1_PREFIXED(Heading)& hd)
|
||
|
|
{
|
||
|
|
return hd.headingValue != ASN1_PREFIXED(HeadingValue_unavailable);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool similar_heading(const ASN1_PREFIXED(Heading)& a, const ASN1_PREFIXED(Heading)& b, Angle limit)
|
||
|
|
{
|
||
|
|
// HeadingValues are tenth of degree (900 equals 90 degree east)
|
||
|
|
static_assert(ASN1_PREFIXED(HeadingValue_wgs84East) == 900, "HeadingValue interpretation fails");
|
||
|
|
|
||
|
|
bool result = false;
|
||
|
|
if (is_available(a) && is_available(b)) {
|
||
|
|
using vanetza::units::degree;
|
||
|
|
const Angle angle_a { a.headingValue / 10.0 * degree };
|
||
|
|
const Angle angle_b { b.headingValue / 10.0 * degree };
|
||
|
|
result = similar_heading(angle_a, angle_b, limit);
|
||
|
|
}
|
||
|
|
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool similar_heading(const ASN1_PREFIXED(Heading)& a, Angle b, Angle limit)
|
||
|
|
{
|
||
|
|
bool result = false;
|
||
|
|
if (is_available(a)) {
|
||
|
|
using vanetza::units::degree;
|
||
|
|
result = similar_heading(Angle { a.headingValue / 10.0 * degree}, b, limit);
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace facilities
|
||
|
|
} // namespace vanetza
|