ClemensFischer/XAML-Map-Control
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Add measurement line to sample apps

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This commit is contained in:
ClemensFischer 2023-01-06 16:01:03 +01:00
parent 365fdb75dc
commit e1c6bfdf9c
6 changed files with 242 additions and 72 deletions
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97
SampleApps/WinUiApp/MainWindow.xaml.cs
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@ -10,7 +10,9 @@ using System;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Windows.System;
namespace SampleApplication
{
@ -104,46 +106,51 @@ namespace SampleApplication
private async void MapPointerPressed(object sender, PointerRoutedEventArgs e)
{
if (map.MapLayer is WmsImageLayer wmsLayer &&
e.Pointer.PointerDeviceType == PointerDeviceType.Mouse)
if (e.Pointer.PointerDeviceType == PointerDeviceType.Mouse)
{
PointerPoint point = e.GetCurrentPoint(map);
var point = e.GetCurrentPoint(map);
if (point.Properties.IsRightButtonPressed)
{
var location = map.ViewToLocation(point.Position);
if (location != null)
{
measurementLine.Visibility = Visibility.Visible;
measurementLine.Locations = new LocationCollection(location);
}
}
else if (e.KeyModifiers.HasFlag(VirtualKeyModifiers.Control) &&
map.MapLayer is WmsImageLayer wmsLayer)
{
Debug.WriteLine(await wmsLayer.GetFeatureInfoAsync(point.Position));
}
}
}
private void MapPointerReleased(object sender, PointerRoutedEventArgs e)
{
measurementLine.Visibility = Visibility.Collapsed;
measurementLine.Locations = null;
}
private void MapPointerMoved(object sender, PointerRoutedEventArgs e)
{
var location = map.ViewToLocation(e.GetCurrentPoint(map).Position);
var point = e.GetCurrentPoint(map);
var location = map.ViewToLocation(point.Position);
if (location != null)
{
var latitude = (int)Math.Round(location.Latitude * 60000d);
var longitude = (int)Math.Round(Location.NormalizeLongitude(location.Longitude) * 60000d);
var latHemisphere = 'N';
var lonHemisphere = 'E';
if (latitude < 0)
{
latitude = -latitude;
latHemisphere = 'S';
}
if (longitude < 0)
{
longitude = -longitude;
lonHemisphere = 'W';
}
mouseLocation.Text = string.Format(CultureInfo.InvariantCulture,
"{0} {1:00} {2:00.000}\n{3} {4:000} {5:00.000}",
latHemisphere, latitude / 60000, (latitude % 60000) / 1000d,
lonHemisphere, longitude / 60000, (longitude % 60000) / 1000d);
mouseLocation.Visibility = Visibility.Visible;
mouseLocation.Text = GetLatLonText(location);
var start = measurementLine.Locations?.FirstOrDefault();
if (start != null)
{
measurementLine.Locations = LocationCollection.OrthodromeLocations(start, location);
mouseLocation.Text += GetDistanceText(location.GetDistance(start));
}
}
else
{
@ -157,5 +164,45 @@ namespace SampleApplication
mouseLocation.Visibility = Visibility.Collapsed;
mouseLocation.Text = string.Empty;
}
private static string GetLatLonText(Location location)
{
var latitude = (int)Math.Round(location.Latitude * 60000d);
var longitude = (int)Math.Round(Location.NormalizeLongitude(location.Longitude) * 60000d);
var latHemisphere = 'N';
var lonHemisphere = 'E';
if (latitude < 0)
{
latitude = -latitude;
latHemisphere = 'S';
}
if (longitude < 0)
{
longitude = -longitude;
lonHemisphere = 'W';
}
return string.Format(CultureInfo.InvariantCulture,
"{0} {1:00} {2:00.000}\n{3} {4:000} {5:00.000}",
latHemisphere, latitude / 60000, (latitude % 60000) / 1000d,
lonHemisphere, longitude / 60000, (longitude % 60000) / 1000d);
}
private string GetDistanceText(double distance)
{
var unit = "m";
if (distance >= 1000d)
{
distance /= 1000d;
unit = "km";
}
var distanceFormat = distance >= 100d ? "F0" : "F1";
return string.Format(CultureInfo.InvariantCulture, "\n {0:" + distanceFormat + "} {1}", distance, unit);
}
}
}