altoslib: Add constants for speed/accel filtering

With an eye towards letting the user pick.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/altoslib/AltosFlightSeries.java b/altoslib/AltosFlightSeries.java
index f8665fdf09081c36192b75a0f4b62d487dbb918d..7e643d9651359a10455504418766048ba024e60c 100644 (file)
--- a/altoslib/AltosFlightSeries.java
+++ b/altoslib/AltosFlightSeries.java
@@ -20,6 +20,9 @@ public class AltosFlightSeries extends AltosDataListener {
 
        public ArrayList<AltosTimeSeries> series = new ArrayList<AltosTimeSeries>();
 
+       public double   speed_filter_width = 4.0;
+       public double   accel_filter_width = 4.0;
+
        public int[] indices() {
                int[] indices = new int[series.size()];
                for (int i = 0; i < indices.length; i++)
@@ -165,7 +168,7 @@ public class AltosFlightSeries extends AltosDataListener {
 
                if (speed_series != null) {
                        AltosTimeSeries temp_series = make_series(speed_name, AltosConvert.speed);
-                       speed_series.filter(temp_series, 2.0);
+                       speed_series.filter(temp_series, accel_filter_width);
                        accel_series = add_series(accel_name, AltosConvert.accel);
                        temp_series.differentiate(accel_series);
                }
@@ -236,7 +239,7 @@ public class AltosFlightSeries extends AltosDataListener {
 
                if (altitude_series != null) {
                        AltosTimeSeries temp_series = make_series(altitude_name, AltosConvert.height);
-                       altitude_series.filter(temp_series, 1.0);
+                       altitude_series.filter(temp_series, speed_filter_width);
 
                        alt_speed_series = make_series(speed_name, AltosConvert.speed);
                        temp_series.differentiate(alt_speed_series);
@@ -399,13 +402,18 @@ public class AltosFlightSeries extends AltosDataListener {
                }
                sats_in_soln.add(time(), gps.nsat);
                if (gps.pdop != AltosLib.MISSING) {
-                       if (gps_pdop == null) {
+                       if (gps_pdop == null)
                                gps_pdop = add_series(gps_pdop_name, null);
-                               gps_hdop = add_series(gps_hdop_name, null);
-                               gps_vdop = add_series(gps_vdop_name, null);
-                       }
                        gps_pdop.add(time(), gps.pdop);
+               }
+               if (gps.hdop != AltosLib.MISSING) {
+                       if (gps_hdop == null)
+                               gps_hdop = add_series(gps_hdop_name, null);
                        gps_hdop.add(time(), gps.hdop);
+               }
+               if (gps.vdop != AltosLib.MISSING) {
+                       if (gps_vdop == null)
+                               gps_vdop = add_series(gps_vdop_name, null);
                        gps_vdop.add(time(), gps.vdop);
                }
                if (gps.locked) {