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tweak plotview ui and limit to plotting 1000 points

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This commit is contained in:
Morten Nielsen 2020-07-31 00:17:39 -07:00
parent ecf9d4e53a
commit 967a54f41f
1 changed files with 5 additions and 4 deletions
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9
src/SampleApp.WinDesktop/PointPlotView.xaml.cs
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@ -50,7 +50,7 @@ namespace SampleApp.WinDesktop
UpdatePlot(); UpdatePlot();
}); });
} }
static SolidColorBrush dotFill = new SolidColorBrush(Colors.LightGreen); static SolidColorBrush dotFill = new SolidColorBrush(Color.FromRgb(0, 255, 0));
private void UpdatePlot() private void UpdatePlot()
{ {
if (canvas.ActualWidth == 0 || canvas.ActualHeight == 0 || !IsVisible) if (canvas.ActualWidth == 0 || canvas.ActualHeight == 0 || !IsVisible)
@ -101,14 +101,15 @@ namespace SampleApp.WinDesktop
double scale = maxDif / Math.Min(OuterRing.ActualWidth, OuterRing.ActualHeight) / .5; double scale = maxDif / Math.Min(OuterRing.ActualWidth, OuterRing.ActualHeight) / .5;
if (scale == 0) if (scale == 0)
scale = 1; scale = 1;
for (int i = Math.Max(0, locations2.Count - 1000); i < locations2.Count; i++) // Only draw the last 1000 points var MAXCOUNT = 1000;
for (int i = Math.Max(0, locations2.Count - MAXCOUNT); i < locations2.Count; i++) // Only draw the last 1000 points
{ {
var l = locations2[i]; var l = locations2[i];
var x = canvas.ActualWidth * .5 + (l[1] - lonAvr2) / scale; var x = canvas.ActualWidth * .5 + (l[1] - lonAvr2) / scale;
var y = canvas.ActualHeight * .5 - (l[0] - latAvr2) / scale; var y = canvas.ActualHeight * .5 - (l[0] - latAvr2) / scale;
Ellipse e = new Ellipse() { Width = 3, Height = 3, Fill = dotFill }; Ellipse e = new Ellipse() { Width = 3, Height = 3, Fill = dotFill };
if (canvas.Children.Count == locations2.Count - 1) if (canvas.Children.Count == locations2.Count - 1 || canvas.Children.Count == MAXCOUNT - 1)
{ {
e.Fill = new SolidColorBrush(Colors.Red); e.Fill = new SolidColorBrush(Colors.Red);
e.Width = 5; e.Width = 5;
@ -123,7 +124,7 @@ namespace SampleApp.WinDesktop
var stdDevLon = Math.Sqrt(locations2.Sum(d => (d[1] - lonAvr2) * (d[1] - lonAvr2)) / locations2.Count); var stdDevLon = Math.Sqrt(locations2.Sum(d => (d[1] - lonAvr2) * (d[1] - lonAvr2)) / locations2.Count);
var zAvr = locations.Select(l => l[2]).Where(l => !double.IsNaN(l)).Average(); var zAvr = locations.Select(l => l[2]).Where(l => !double.IsNaN(l)).Average();
var stdDevZ = Math.Sqrt(locations.Select(l => l[2]).Where(l => !double.IsNaN(l)).Sum(d => (d - zAvr) * (d - zAvr)) / locations.Select(l => l[2]).Where(l => !double.IsNaN(l)).Count()); var stdDevZ = Math.Sqrt(locations.Select(l => l[2]).Where(l => !double.IsNaN(l)).Sum(d => (d - zAvr) * (d - zAvr)) / locations.Select(l => l[2]).Where(l => !double.IsNaN(l)).Count());
Status.Text = $"Average:\n - Latitude: {latAvr.ToString("0.0000000")}\n - Longitude: {lonAvr.ToString("0.0000000")}\n - Elevation: {zAvr.ToString("0.000")}m\nStandard Deviation:\n - Latitude: {stdDevLat.ToString("0.###")}m\n - Longitude: {stdDevLon.ToString("0.###")}m\n - Horizontal: {distances.Average().ToString("0.###")}m\n - Elevation: {stdDevZ.ToString("0.###")}m"; Status.Text = $"Measurements: {locations.Count}\nAverage:\n - Latitude: {latAvr.ToString("0.0000000")}\n - Longitude: {lonAvr.ToString("0.0000000")}\n - Elevation: {zAvr.ToString("0.000")}m\nStandard Deviation:\n - Latitude: {stdDevLat.ToString("0.###")}m\n - Longitude: {stdDevLon.ToString("0.###")}m\n - Horizontal: {distances.Average().ToString("0.###")}m\n - Elevation: {stdDevZ.ToString("0.###")}m";
} }
internal static class Vincenty internal static class Vincenty