public void PopulateDataTable(GPXAnalyzer frm, int Trackidx)
{
if (Trackidx >= 0)
{
trkType track = gpxInfo.trk[Trackidx];
trksegType seg = track.trkseg[0];
wptType wpt, wptPrev = null;
double legLength;
decimal ele;
double speed = 0D;
string name;
decimal total_ascent = 0;
decimal total_descent = 0;
double total_distance = 0D;
decimal ele_diff = 0;
TimeSpan elapsedTime = new TimeSpan(0L);
TimeSpan legTime = new TimeSpan(0L);
for (int iPoint = 0; iPoint < seg.trkpt.Length; iPoint++)
{
wpt = seg.trkpt[iPoint];
if (wpt.name == null || wpt.name.Equals("")) name = "WP:" + iPoint; else name = wpt.name;
legLength = distances[iPoint];
total_distance += legLength;
ele = wpt.ele;
if (wptPrev != null)
{
legTime = wpt.time - wptPrev.time;
elapsedTime += legTime;
speed = legLength / legTime.Seconds; // in metres/sec
speed = (legTime.Seconds * 1609.344) / (legLength * 60.0); //in minute miles
// if ((total_distance / 1609.344))
ele_diff = wpt.ele - wptPrev.ele;
if (ele_diff < 0) total_descent += -ele_diff;
else total_ascent += ele_diff;
}
frm.dgvData_addRow(name,
legLength, ele, wpt.time, speed,
total_ascent, total_descent, total_distance, elapsedTime);
frm.DGVDataEntry_addRow(name, wpt.lat, wpt.lon);
wptPrev = wpt;
}
// frm.dgvData_addRow
}
}
public PointF[] GenerateTrackGraphic(GPXAnalyzer frm, int Trackidx, int width, int height, int borderWidth)
{
PointF[] Points = new PointF[0];
if (!ValidTrack(Trackidx)) return Points;
if (gpxInfo != null)
{
// Compute scale factor
double dlat = (double)(trackBounds.maxlat - trackBounds.minlat);
double dlon = (double)(trackBounds.maxlon - trackBounds.minlon);
double xScale = (width - 2 * borderWidth) / dlon;
double yScale = (height - 2 * borderWidth) / dlat;
xScale = Math.Min(xScale, yScale);
yScale = xScale;
trkType track = gpxInfo.trk[Trackidx];
trksegType seg = track.trkseg[0];
Points = new PointF[seg.trkpt.Length];
wptType wpt;
for (int iPoint = 0; iPoint < seg.trkpt.Length; iPoint++)
{
wpt = seg.trkpt[iPoint];
PointF pt = frm.LatLonToScreen((double)wpt.lat, (double)wpt.lon,
(double)trackBounds.minlat, (double)trackBounds.minlon, xScale, yScale);
Points[iPoint] = pt;
}
}
return Points;
}
public void DisplayTrack(GPXAnalyzer frm)
{
int nTracks = 0;
frm.clearTracks();
frm.clearPoints();
if (gpxInfo.trk != null)
{
// populate tracks listbox
nTracks = gpxInfo.trk.Length;
foreach (trkType track in gpxInfo.trk)
{
frm.AddTrackName(track.name);
}
}
/* if (nTracks > 0)
{
// Select the first track
// This raises the SelectedIndexChanged event.
frm.lblTracks.SelectedIndex = 0;
} */
frm.SetTrackText(string.Format("{0} Tracks in {1}", nTracks, Text));
}
public PointF[] GenerateElevationGraphic(GPXAnalyzer frm, int Trackidx, int width, int height, int borderWidth)
{
trkType track = gpxInfo.trk[Trackidx];
trksegType seg = track.trkseg[0];
wptType wpt;
wptType wptPrev = seg.trkpt[0];
double runningDist = 0;
PointF[] Points = new PointF[seg.trkpt.Length];
SetupTrackData(Trackidx);
// Compute scale factor
// Determine elevation difference.
double dele = maxEle - minEle;
double xScale = (width - 2 * borderWidth) / totalDist;
double yScale = (height - 2 * borderWidth) / dele;
// Calculate graphics code
for (int iPoint = 0; iPoint < seg.trkpt.Length; iPoint++)
{
wpt = seg.trkpt[iPoint];
runningDist += distances[iPoint]; //stored geo calc
PointF pt = frm.DistEleToScreen(runningDist, (double)wpt.ele, minEle, xScale, yScale);
Points[iPoint] = pt;
wptPrev = wpt;
}
// Draw the lines between the points
return Points;
}
// Fills the Points list box with the track points
// from the selected track and computes totals for the track.
public void DisplayPoints(GPXAnalyzer frm, int whichTrack)
{
if (whichTrack < 0) return;
trkType track = gpxInfo.trk[whichTrack];
if (track == null) return;
trksegType seg = track.trkseg[0];
wptType wpt;
wptType wptPrev = null;
SetupTrackData( whichTrack );
frm.SetPointsText(string.Format("{0} Points", seg.trkpt.Length));
for (int iPoint = 0; iPoint < seg.trkpt.Length; iPoint++)
{
wpt = seg.trkpt[iPoint];
string spt;
if (wpt.name != null && !(wpt.name == string.Empty))
{
spt = string.Format("{0,-5} {1}", iPoint + 1, wpt.name);
}
else
{
spt = string.Format("{0,-5} {1}", iPoint + 1,
GPXUtils.LatLonToString((double)wpt.lat, (double)wpt.lon));
}
frm.AddPointsName(spt);
wptPrev = wpt;
}
}
