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package tim.prune.function.comparesegments;
import tim.prune.data.Bearing;
import tim.prune.data.DataPoint;
/** Holds the information about a single line between two (not necessarily consecutive) track points and its bearing */
public class LineAndBearing
{
final PointData _fromPoint;
final PointData _toPoint;
final double _bearing;
final double _distToFromPointRadians;
final double _distAlongRadians;
LineAndBearing(PointData fromPoint, PointData toPoint)
{
_fromPoint = fromPoint;
_toPoint = toPoint;
_bearing = Bearing.calculateDegrees(_fromPoint._point, toPoint._point);
_distToFromPointRadians = fromPoint._distanceToHereRadians;
_distAlongRadians = toPoint._distanceToHereRadians - fromPoint._distanceToHereRadians;
}
DataPoint getFromPoint() {
return _fromPoint._point;
}
DataPoint getToPoint() {
return _toPoint._point;
}
long getMilliseconds() {
return getToPoint().getTimestamp().getMillisecondsSince(getFromPoint().getTimestamp());
}
double getInterpolatedSpeed(double inFraction)
{
final double fromSpeed = _fromPoint._speedRadiansPerSec;
final double toSpeed = _toPoint._speedRadiansPerSec;
return fromSpeed + inFraction * (toSpeed - fromSpeed);
}
}
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