From f300a0705e70329d1fd7b697879b0f9bc4cfcbc8 Mon Sep 17 00:00:00 2001
From: "tsteven4@gmail.com"
 <tsteven4@gmail.com@f51c46e8-681c-474f-0cfe-069cfd0219fb>
Date: Fri, 4 Apr 2014 12:40:13 +0000
Subject: [PATCH] add geoidheight to Waypoint class. support geoidheight in
 nmea and gpx reader and writers.

git-svn-id: http://gpsbabel.googlecode.com/svn/trunk@4793 f51c46e8-681c-474f-0cfe-069cfd0219fb
---
 gpsbabel/defs.h                        |   3 +
 gpsbabel/gpx.cc                        |  14 ++-
 gpsbabel/nmea.cc                       |  13 ++-
 gpsbabel/reference/track/amod-cleansed |   6 +-
 gpsbabel/reference/track/amod.gpx      |   3 +
 gpsbabel/reference/track/nmea+ms.gpx   |  26 +++++
 gpsbabel/reference/track/nmea.gpx      | 154 +++++++++++++++++++++++++
 gpsbabel/testo.d/nmea.test             |   2 +-
 gpsbabel/waypt.cc                      |   2 +
 9 files changed, 214 insertions(+), 9 deletions(-)

diff --git a/gpsbabel/defs.h b/gpsbabel/defs.h
index f9885226b..4a9f5fd5a 100644
--- a/gpsbabel/defs.h
+++ b/gpsbabel/defs.h
@@ -385,6 +385,7 @@ public:
     proximity(0),
     course(0),
     speed(0),
+    geoidheight(0),
     depth(0),
     is_split(0),
     new_trkseg(0) {}
@@ -396,6 +397,7 @@ public:
   unsigned int proximity:1;		/* proximity field is set */
   unsigned int course:1;			/* course field is set */
   unsigned int speed:1;			/* speed field is set */
+  unsigned int geoidheight:1;	/* geoidheight field is set */
   unsigned int depth:1;			/* depth field is set */
   /* !ToDo!
   unsigned int altitude:1;		/+ altitude field is set +/
@@ -461,6 +463,7 @@ public:
   double latitude;		/* Degrees */
   double longitude; 		/* Degrees */
   double altitude; 		/* Meters. */
+  double geoidheight;	/* Height (in meters) of geoid (mean sea level) above WGS84 earth ellipsoid. */
 
   /*
    * The "thickness" of a waypoint; adds an element of 3D.  Can be
diff --git a/gpsbabel/gpx.cc b/gpsbabel/gpx.cc
index a0f6d1db9..20dc6c772 100644
--- a/gpsbabel/gpx.cc
+++ b/gpsbabel/gpx.cc
@@ -99,6 +99,7 @@ typedef enum  {
   tt_wpt,
   tt_wpttype_ele,
   tt_wpttype_time,
+  tt_wpttype_geoidheight,
   tt_wpttype_name,
   tt_wpttype_cmt,
   tt_wpttype_desc,
@@ -381,6 +382,7 @@ tag_mapping tag_path_map[] = {
 
   GPXWPTTYPETAG(tt_wpttype_ele, 0, "ele"),
   GPXWPTTYPETAG(tt_wpttype_time, 0, "time"),
+  GPXWPTTYPETAG(tt_wpttype_geoidheight, 0, "geoidheight"),
   GPXWPTTYPETAG(tt_wpttype_name, 0, "name"),
   GPXWPTTYPETAG(tt_wpttype_cmt, 0, "cmt"),
   GPXWPTTYPETAG(tt_wpttype_desc, 0, "desc"),
@@ -1069,6 +1071,9 @@ gpx_end(const QString& el)
   case tt_wpttype_time:
     wpt_tmp->SetCreationTime(xml_parse_time(cdatastr));
     break;
+  case tt_wpttype_geoidheight:
+    WAYPT_SET(wpt_tmp, geoidheight, cdatastr.toDouble());
+    break;
   case tt_wpttype_cmt:
     wpt_tmp->description = cdatastr;
     break;
@@ -1417,6 +1422,8 @@ gpx_write_common_acc(const Waypoint* waypointp)
   if (waypointp->pdop) {
     writer->writeTextElement("pdop", toString(waypointp->pdop));
   }
+  /* TODO: ageofdgpsdata should go here */
+  /* TODO: dgpsid should go here */
 }
 
 
@@ -1437,6 +1444,10 @@ gpx_write_common_position(const Waypoint* waypointp, const gpx_point_type point_
       writer->writeTextElement("speed", toString(waypointp->speed));
     }
   }
+  /* TODO:  magvar should go here */
+  if (WAYPT_HAS(waypointp, geoidheight)) {
+    writer->writeOptionalTextElement("geoidheight",QString::number(waypointp->geoidheight, 'f', 1));
+  }
 }
 
 static void
@@ -1522,9 +1533,10 @@ gpx_write_common_description(const Waypoint* waypointp, QString oname)
   } else {
     writer->writeOptionalTextElement("desc", waypointp->description);
   }
-
+  /* TODO: src should go here */
   write_gpx_url(waypointp);
   writer->writeOptionalTextElement("sym", waypointp->icon_descr);
+  /* TODO: type should go here */
 }
 
 static void
diff --git a/gpsbabel/nmea.cc b/gpsbabel/nmea.cc
index f0eb56d02..c673d1ada 100644
--- a/gpsbabel/nmea.cc
+++ b/gpsbabel/nmea.cc
@@ -434,6 +434,8 @@ gpgga_parse(char* ibuf)
   int nsats = 0;
   double hdop;
   char altunits;
+  double geoidheight;
+  char geoidheightunits;
   Waypoint* waypt;
   double fsec;
 
@@ -442,10 +444,10 @@ gpgga_parse(char* ibuf)
     track_add_head(trk_head);
   }
 
-  sscanf(ibuf,"$%*2cGGA,%lf,%lf,%c,%lf,%c,%d,%d,%lf,%lf,%c",
+  sscanf(ibuf,"$%*2cGGA,%lf,%lf,%c,%lf,%c,%d,%d,%lf,%lf,%c,%lf,%c",
          &hms, &latdeg,&latdir,
          &lngdeg,&lngdir,
-         &fix,&nsats,&hdop,&alt,&altunits);
+         &fix,&nsats,&hdop,&alt,&altunits,&geoidheight,&geoidheightunits);
 
   /*
    * In serial mode, allow the fix with an invalid position through
@@ -482,6 +484,8 @@ gpgga_parse(char* ibuf)
 
   waypt->altitude = alt;
 
+  WAYPT_SET(waypt, geoidheight, geoidheight);
+
   waypt->sat 	= nsats;
 
   waypt->hdop 	= hdop;
@@ -1325,14 +1329,15 @@ nmea_trackpt_pr(const Waypoint* wpt)
     gbfprintf(file_out, "$%s*%02X\n", obuf, cksum);
   }
   if (opt_gpgga) {
-    snprintf(obuf, sizeof(obuf), "GPGGA,%010.3f,%08.3f,%c,%09.3f,%c,%c,%02d,%.1f,%.3f,M,0.0,M,,",
+    snprintf(obuf, sizeof(obuf), "GPGGA,%010.3f,%08.3f,%c,%09.3f,%c,%c,%02d,%.1f,%.3f,M,%.1f,M,,",
              (double) hms + (wpt->GetCreationTime().time().msec() / 1000.0),
              fabs(lat), lat < 0 ? 'S' : 'N',
              fabs(lon), lon < 0 ? 'W' : 'E',
              fix,
              (wpt->sat>0)?(wpt->sat):(0),
              (wpt->hdop>0)?(wpt->hdop):(0.0),
-             wpt->altitude == unknown_alt ? 0 : wpt->altitude);
+             wpt->altitude == unknown_alt ? 0 : wpt->altitude,
+             WAYPT_HAS(wpt, geoidheight)? (wpt->geoidheight) : (0)); /* TODO: we could look up the geoidheight if needed */
     cksum = nmea_cksum(obuf);
     gbfprintf(file_out, "$%s*%02X\n", obuf, cksum);
   }
diff --git a/gpsbabel/reference/track/amod-cleansed b/gpsbabel/reference/track/amod-cleansed
index c113e69b7..198de0cf9 100644
--- a/gpsbabel/reference/track/amod-cleansed
+++ b/gpsbabel/reference/track/amod-cleansed
@@ -2,14 +2,14 @@ $GPRMC,200641.000,V,3549.499,N,08650.824,W,0.00,224.45,050608,,*03
 $GPGGA,200641.000,3549.499,N,08650.824,W,0,00,0.0,0.000,M,0.0,M,,*74
 $GPVTG,224.450,T,0,M,0.000,N,0.000,K*55
 $GPRMC,200642.000,A,3549.499,N,08650.824,W,0.00,224.45,050608,,*17
-$GPGGA,200642.000,3549.499,N,08650.824,W,1,07,1.1,269.900,M,0.0,M,,*75
+$GPGGA,200642.000,3549.499,N,08650.824,W,1,07,1.1,269.900,M,-31.4,M,,*6E
 $GPVTG,224.450,T,0,M,0.000,N,0.000,K*55
 $GPGSA,A,3,,,,,,,,,,,,,2.1,1.1,1.8*38
 $GPRMC,200643.000,A,3549.499,N,08650.824,W,0.00,224.45,050608,,*16
-$GPGGA,200643.000,3549.499,N,08650.824,W,1,07,1.1,269.900,M,0.0,M,,*74
+$GPGGA,200643.000,3549.499,N,08650.824,W,1,07,1.1,269.900,M,-31.4,M,,*6F
 $GPVTG,224.450,T,0,M,0.000,N,0.000,K*55
 $GPGSA,A,3,,,,,,,,,,,,,2.1,1.1,1.8*38
 $GPRMC,200644.000,A,3549.499,N,08650.824,W,0.00,224.45,050608,,*11
-$GPGGA,200644.000,3549.499,N,08650.824,W,1,06,1.3,269.900,M,0.0,M,,*70
+$GPGGA,200644.000,3549.499,N,08650.824,W,1,06,1.3,269.900,M,-31.4,M,,*6B
 $GPVTG,224.450,T,0,M,0.000,N,0.000,K*55
 $GPGSA,A,3,,,,,,,,,,,,,2.2,1.3,1.8*39
diff --git a/gpsbabel/reference/track/amod.gpx b/gpsbabel/reference/track/amod.gpx
index addee31f1..dfa54c7b1 100644
--- a/gpsbabel/reference/track/amod.gpx
+++ b/gpsbabel/reference/track/amod.gpx
@@ -14,6 +14,7 @@
         <time>2008-06-05T20:06:42Z</time>
         <course>224.449997</course>
         <speed>0.000000</speed>
+        <geoidheight>-31.4</geoidheight>
         <fix>3d</fix>
         <sat>7</sat>
         <hdop>1.100000</hdop>
@@ -25,6 +26,7 @@
         <time>2008-06-05T20:06:43Z</time>
         <course>224.449997</course>
         <speed>0.000000</speed>
+        <geoidheight>-31.4</geoidheight>
         <fix>3d</fix>
         <sat>7</sat>
         <hdop>1.100000</hdop>
@@ -36,6 +38,7 @@
         <time>2008-06-05T20:06:44Z</time>
         <course>224.449997</course>
         <speed>0.000000</speed>
+        <geoidheight>-31.4</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.300000</hdop>
diff --git a/gpsbabel/reference/track/nmea+ms.gpx b/gpsbabel/reference/track/nmea+ms.gpx
index 06d3d82af..4f11486ff 100644
--- a/gpsbabel/reference/track/nmea+ms.gpx
+++ b/gpsbabel/reference/track/nmea+ms.gpx
@@ -9,6 +9,7 @@
         <time>2007-08-17T09:31:56.500Z</time>
         <course>171.410004</course>
         <speed>0.111111</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -20,6 +21,7 @@
         <time>2007-08-17T09:31:56.750Z</time>
         <course>169.850006</course>
         <speed>0.055556</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -31,6 +33,7 @@
         <time>2007-08-17T09:31:57Z</time>
         <course>167.320007</course>
         <speed>0.111111</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -42,6 +45,7 @@
         <time>2007-08-17T09:31:57.250Z</time>
         <course>165.429993</course>
         <speed>0.111111</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -53,6 +57,7 @@
         <time>2007-08-17T09:31:57.500Z</time>
         <course>164.399994</course>
         <speed>0.027778</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -64,6 +69,7 @@
         <time>2007-08-17T09:31:57.750Z</time>
         <course>168.419998</course>
         <speed>0.083333</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -75,6 +81,7 @@
         <time>2007-08-17T09:31:58.250Z</time>
         <course>181.889999</course>
         <speed>0.111111</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -84,6 +91,7 @@
         <time>2007-08-17T09:31:58Z</time>
         <course>175.830002</course>
         <speed>0.138889</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -93,6 +101,7 @@
         <time>2007-08-17T09:31:58.750Z</time>
         <course>179.449997</course>
         <speed>0.083333</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -104,6 +113,7 @@
         <time>2007-08-17T09:31:59Z</time>
         <course>176.820007</course>
         <speed>0.083333</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -115,6 +125,7 @@
         <time>2007-08-17T09:32:00.500Z</time>
         <course>202.580002</course>
         <speed>0.138889</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -126,6 +137,7 @@
         <time>2007-08-17T09:31:59.250Z</time>
         <course>174.279999</course>
         <speed>0.055556</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -137,6 +149,7 @@
         <time>2007-08-17T09:31:59.500Z</time>
         <course>177.330002</course>
         <speed>0.111111</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -146,6 +159,7 @@
         <time>2007-08-17T09:32:00Z</time>
         <course>185.009995</course>
         <speed>0.027778</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -157,6 +171,7 @@
         <time>2007-08-17T09:32:00.250Z</time>
         <course>189.289993</course>
         <speed>0.083333</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -168,6 +183,7 @@
         <time>2007-08-17T09:32:01Z</time>
         <course>207.460007</course>
         <speed>0.222222</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -179,6 +195,7 @@
         <time>2007-08-17T09:32:01.250Z</time>
         <course>213.190002</course>
         <speed>0.138889</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -190,6 +207,7 @@
         <time>2007-08-17T09:32:01.500Z</time>
         <course>218.089996</course>
         <speed>0.277778</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -201,6 +219,7 @@
         <time>2007-08-17T09:32:01.750Z</time>
         <course>221.759995</course>
         <speed>0.250000</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -212,6 +231,7 @@
         <time>2007-08-17T09:32:02Z</time>
         <course>226.210007</course>
         <speed>0.222222</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -223,6 +243,7 @@
         <time>2007-08-17T09:32:02.500Z</time>
         <course>233.130005</course>
         <speed>0.138889</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -234,6 +255,7 @@
         <time>2007-08-17T09:32:02.750Z</time>
         <course>233.779999</course>
         <speed>0.055556</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -245,6 +267,7 @@
         <time>2007-08-17T09:32:03Z</time>
         <course>231.729996</course>
         <speed>0.055556</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -256,6 +279,7 @@
         <time>2007-08-17T09:32:03.250Z</time>
         <course>227.869995</course>
         <speed>0.055556</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -267,6 +291,7 @@
         <time>2007-08-17T09:32:03.500Z</time>
         <course>224.449997</course>
         <speed>0.083333</speed>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
@@ -276,6 +301,7 @@
       <trkpt lat="53.556728333" lon="9.865575000">
         <ele>49.900000</ele>
         <time>2007-08-17T09:32:05.750Z</time>
+        <geoidheight>46.0</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.700000</hdop>
diff --git a/gpsbabel/reference/track/nmea.gpx b/gpsbabel/reference/track/nmea.gpx
index adec90fd1..af8260bdd 100644
--- a/gpsbabel/reference/track/nmea.gpx
+++ b/gpsbabel/reference/track/nmea.gpx
@@ -9,6 +9,7 @@
         <time>2004-08-07T03:29:08.379Z</time>
         <course>138.919998</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -20,6 +21,7 @@
         <time>2004-08-07T03:29:09.379Z</time>
         <course>145.850006</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -31,6 +33,7 @@
         <time>2004-08-07T03:29:10.379Z</time>
         <course>143.250000</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -42,6 +45,7 @@
         <time>2004-08-07T03:29:11.379Z</time>
         <course>145.759995</course>
         <speed>0.111111</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -53,6 +57,7 @@
         <time>2004-08-07T03:29:12.379Z</time>
         <course>141.440002</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -64,6 +69,7 @@
         <time>2004-08-07T03:29:13.379Z</time>
         <course>140.399994</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -75,6 +81,7 @@
         <time>2004-08-07T03:29:14.379Z</time>
         <course>142.509995</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -86,6 +93,7 @@
         <time>2004-08-07T03:29:15.379Z</time>
         <course>144.059998</course>
         <speed>0.111111</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -97,6 +105,7 @@
         <time>2004-08-07T03:29:16.379Z</time>
         <course>137.660004</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -108,6 +117,7 @@
         <time>2004-08-07T03:29:17.379Z</time>
         <course>144.229996</course>
         <speed>0.111111</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>5</sat>
         <hdop>1.600000</hdop>
@@ -119,6 +129,7 @@
         <time>2004-08-07T03:29:18.379Z</time>
         <course>140.350006</course>
         <speed>0.083333</speed>
+        <geoidheight>-34.2</geoidheight>
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         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.600000</hdop>
@@ -1681,6 +1833,7 @@
         <time>2004-08-07T03:31:40.370Z</time>
         <course>138.740005</course>
         <speed>0.111111</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.600000</hdop>
@@ -1692,6 +1845,7 @@
         <time>2004-08-07T03:31:41.370Z</time>
         <course>137.910004</course>
         <speed>0.111111</speed>
+        <geoidheight>-34.2</geoidheight>
         <fix>3d</fix>
         <sat>6</sat>
         <hdop>1.600000</hdop>
diff --git a/gpsbabel/testo.d/nmea.test b/gpsbabel/testo.d/nmea.test
index 0a8952900..a1cfcc706 100644
--- a/gpsbabel/testo.d/nmea.test
+++ b/gpsbabel/testo.d/nmea.test
@@ -12,4 +12,4 @@ compare ${REFERENCE}/track/nmea+ms.gpx ${TMPDIR}/nmea+ms.gpx
 #
 gpsbabel -i nmea -f ${REFERENCE}/track/amod-nmea -o gpx -F ${TMPDIR}/amod-out.gpx -o nmea -F ${TMPDIR}/amod-pure
 compare ${REFERENCE}/track/amod.gpx ${TMPDIR}/amod-out.gpx
-compare ${TMPDIR}/amod-pure ${REFERENCE}/track/amod-cleansed
+compare ${REFERENCE}/track/amod-cleansed ${TMPDIR}/amod-pure
diff --git a/gpsbabel/waypt.cc b/gpsbabel/waypt.cc
index 876c5abb2..cf76daf86 100644
--- a/gpsbabel/waypt.cc
+++ b/gpsbabel/waypt.cc
@@ -559,6 +559,7 @@ Waypoint::Waypoint() :
   latitude(0),  // These should probably use some invalid data, but
   longitude(0), // it looks like we have code that relies on them being zero.
   altitude(unknown_alt),
+  geoidheight(0),
   depth(0),
   proximity(0),
   route_priority(0),
@@ -595,6 +596,7 @@ Waypoint::Waypoint(const Waypoint& other) :
   latitude(other.latitude),
   longitude(other.longitude),
   altitude(other.altitude),
+  geoidheight(other.geoidheight),
   depth(other.depth),
   proximity(other.proximity),
   shortname(other.shortname),
-- 
2.30.2