private static void GetSegmentDeltas(Point s, Point e,
out double ascent,
out double descent,
out double hMax,
out double hMin,
SrtmRepository heightCache)
{
ascent = descent = 0;
CalcSegmentIteratorsRetSeLen(s, e, out var stepLat, out var stepLon, out var nSteps);
double latI = s.Lat;
double lonI = s.Lon;
var hprev = heightCache.GetHeightForPoint(new Point(latI, lonI)) ?? 0;
hMin = hMax = hprev;
for (var c = 1; c < nSteps; ++c)
{
latI += stepLat;
lonI += stepLon;
var h = heightCache.GetHeightForPoint(new Point(latI, lonI)) ?? 0;
if (h > hprev)
{
ascent += h - hprev;
}
if (h < hprev)
{
descent += -(h - hprev);
}
if (h < hMin)
{
hMin = h;
}
if (h > hMax)
{
hMax = h;
}
hprev = h;
}
}
public static void GetHeightDetailsAccurate(List <Point> lst,
out double ascentTotal,
out double descentTotal,
out double hstart,
out double hend,
out double hmax,
out double hmin,
out int ihmax,
out int ihmin,
SrtmRepository heightCache)
{
ascentTotal = 0;
descentTotal = 0;
hmax = hmin = hstart = heightCache.GetHeightForPoint(lst.First()) ?? 0;
hend = heightCache.GetHeightForPoint(lst.Last()) ?? 0;
ihmax = ihmin = 0;
for (var c = 0; c < lst.Count - 1; ++c)
{
GetSegmentDeltas(lst[c], lst[c + 1], out var tacc, out var tdesc,
out var thmax,
out var thmin,
heightCache);
if (hmax < thmax)
{
hmax = thmax;
ihmax = c;
}
if (hmin > thmin)
{
hmin = thmin;
ihmin = c;
}
ascentTotal += tacc;
descentTotal += tdesc;
}
}
public TrackReportVm(TrackVm source,
IUiLoggingService loggingService,
IUiService uiService,
SrtmRepository srtmRepository,
ITrackReportExporter[] reportExporters,
Func <TrackVm, TrackReportItemVm> reportItemGenerator,
TrekplannerConfiguration configuration)
{
_loggingService = loggingService;
_uiService = uiService;
_srtmRepository = srtmRepository;
_reportExporters = reportExporters;
_reportItemGenerator = reportItemGenerator;
_configuration = configuration;
Source = source;
Totals = new TrackReportTotalsVm(this);
Chart = new TrackChartVm(this);
ExportCommand = new DelegateCommand(o => Results.Any(), ExportReportAsync);
}
