private void UpdateUIFromMapPoint(MapPoint startingPoint)
{
// Update the decimal degrees text
DecimalDegreesTextField.Text =
CoordinateFormatter.ToLatitudeLongitude(startingPoint, LatitudeLongitudeFormat.DecimalDegrees, 4);
// Update the degrees, minutes, seconds text
DmsTextField.Text = CoordinateFormatter.ToLatitudeLongitude(startingPoint,
LatitudeLongitudeFormat.DegreesMinutesSeconds, 1);
// Update the UTM text
UtmTextField.Text = CoordinateFormatter.ToUtm(startingPoint, UtmConversionMode.NorthSouthIndicators, true);
// Update the USNG text
UsngTextField.Text = CoordinateFormatter.ToUsng(startingPoint, 4, true);
// Clear existing graphics overlays
MyMapView.GraphicsOverlays[0].Graphics.Clear();
// Create a symbol to symbolize the point
SimpleMarkerSymbol symbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.X, Colors.Yellow, 20);
// Create the graphic
Graphic symbolGraphic = new Graphic(startingPoint, symbol);
// Add the graphic to the graphics overlay
MyMapView.GraphicsOverlays[0].Graphics.Add(symbolGraphic);
}
private void UpdateUiFromMapPoint(MapPoint selectedPoint)
{
if (selectedPoint == null)
{
return;
}
// Clear event subscriptions - prevents an infinite loop.
_utmEntry.EditingDidBegin -= InputValueChanged;
_dmsEntry.EditingDidBegin -= InputValueChanged;
_ddEntry.EditingDidBegin -= InputValueChanged;
_usngEntry.EditingDidBegin -= InputValueChanged;
try
{
// Update the decimal degrees text.
_ddEntry.Text =
CoordinateFormatter.ToLatitudeLongitude(selectedPoint, LatitudeLongitudeFormat.DecimalDegrees, 4);
// Update the degrees, minutes, seconds text.
_dmsEntry.Text = CoordinateFormatter.ToLatitudeLongitude(selectedPoint,
LatitudeLongitudeFormat.DegreesMinutesSeconds, 1);
// Update the UTM text.
_utmEntry.Text = CoordinateFormatter.ToUtm(selectedPoint, UtmConversionMode.NorthSouthIndicators, true);
// Update the USNG text.
_usngEntry.Text = CoordinateFormatter.ToUsng(selectedPoint, 4, true);
// Clear existing graphics overlays.
_myMapView.GraphicsOverlays[0].Graphics.Clear();
// Create a symbol to symbolize the point.
SimpleMarkerSymbol symbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.X, Color.Yellow, 20);
// Create the graphic.
Graphic symbolGraphic = new Graphic(selectedPoint, symbol);
// Add the graphic to the graphics overlay.
_myMapView.GraphicsOverlays[0].Graphics.Add(symbolGraphic);
}
catch (Exception ex)
{
// The coordinate is malformed, warn and return.
UIAlertController alertController = UIAlertController.Create("There was a problem formatting coordinates.", ex.Message, UIAlertControllerStyle.Alert);
alertController.AddAction(UIAlertAction.Create("OK", UIAlertActionStyle.Default, null));
PresentViewController(alertController, true, null);
}
// Restore event subscriptions.
_utmEntry.EditingDidBegin += InputValueChanged;
_dmsEntry.EditingDidBegin += InputValueChanged;
_ddEntry.EditingDidBegin += InputValueChanged;
_usngEntry.EditingDidBegin += InputValueChanged;
}
private void UpdateUIFromMapPoint(MapPoint selectedPoint)
{
try
{
// Check if the selected point can be formatted into coordinates.
CoordinateFormatter.ToLatitudeLongitude(selectedPoint, LatitudeLongitudeFormat.DecimalDegrees, 0);
}
catch (Exception e)
{
// Check if the excpetion is because the coordinates are out of range.
if (e.Message == "Invalid argument: coordinates are out of range")
{
// Set all of the text fields to contain the error message.
DecimalDegreesTextField.Text = "Coordinates are out of range";
DmsTextField.Text = "Coordinates are out of range";
UtmTextField.Text = "Coordinates are out of range";
UsngTextField.Text = "Coordinates are out of range";
// Clear the selectionss symbol.
MyMapView.GraphicsOverlays[0].Graphics.Clear();
}
return;
}
// Update the decimal degrees text
DecimalDegreesTextField.Text =
CoordinateFormatter.ToLatitudeLongitude(selectedPoint, LatitudeLongitudeFormat.DecimalDegrees, 4);
// Update the degrees, minutes, seconds text
DmsTextField.Text = CoordinateFormatter.ToLatitudeLongitude(selectedPoint,
LatitudeLongitudeFormat.DegreesMinutesSeconds, 1);
// Update the UTM text
UtmTextField.Text = CoordinateFormatter.ToUtm(selectedPoint, UtmConversionMode.NorthSouthIndicators, true);
// Update the USNG text
UsngTextField.Text = CoordinateFormatter.ToUsng(selectedPoint, 4, true);
// Clear existing graphics overlays
MyMapView.GraphicsOverlays[0].Graphics.Clear();
// Create a symbol to symbolize the point
SimpleMarkerSymbol symbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.X, Color.Yellow, 20);
// Create the graphic
Graphic symbolGraphic = new Graphic(selectedPoint, symbol);
// Add the graphic to the graphics overlay
MyMapView.GraphicsOverlays[0].Graphics.Add(symbolGraphic);
}
private void UpdateUIFromMapPoint(MapPoint startingPoint)
{
if (startingPoint == null)
{
return;
}
// Clear event subscriptions - prevents an infinite loop
_utmUITextField.EditingDidBegin -= InputValueChanged;
_dmsUITextField.EditingDidBegin -= InputValueChanged;
_decimalDegreesUITextField.EditingDidBegin -= InputValueChanged;
_usngUITextField.EditingDidBegin -= InputValueChanged;
// Update the decimal degrees text
_decimalDegreesUITextField.Text =
CoordinateFormatter.ToLatitudeLongitude(startingPoint, LatitudeLongitudeFormat.DecimalDegrees, 4);
// Update the degrees, minutes, seconds text
_dmsUITextField.Text = CoordinateFormatter.ToLatitudeLongitude(startingPoint,
LatitudeLongitudeFormat.DegreesMinutesSeconds, 1);
// Update the UTM text
_utmUITextField.Text = CoordinateFormatter.ToUtm(startingPoint, UtmConversionMode.NorthSouthIndicators, true);
// Update the USNG text
_usngUITextField.Text = CoordinateFormatter.ToUsng(startingPoint, 4, true);
// Clear existing graphics overlays
_myMapView.GraphicsOverlays[0].Graphics.Clear();
// Create a symbol to symbolize the point
SimpleMarkerSymbol symbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.X, Color.Yellow, 20);
// Create the graphic
Graphic symbolGraphic = new Graphic(startingPoint, symbol);
// Add the graphic to the graphics overlay
_myMapView.GraphicsOverlays[0].Graphics.Add(symbolGraphic);
// Restore event subscriptions
_utmUITextField.EditingDidBegin += InputValueChanged;
_dmsUITextField.EditingDidBegin += InputValueChanged;
_decimalDegreesUITextField.EditingDidBegin += InputValueChanged;
_usngUITextField.EditingDidBegin += InputValueChanged;
}
private void MapView_MouseMove(object sender, MouseEventArgs e)
{
if (null == FocusMapView.GetCurrentViewpoint(ViewpointType.BoundingGeometry))
{
return;
}
var screenLocation = e.GetPosition(FocusMapView);
var location = FocusMapView.ScreenToLocation(screenLocation);
if (FocusMapView.IsWrapAroundEnabled)
{
location = (MapPoint)GeometryEngine.NormalizeCentralMeridian(location);
}
const int precision = 8;
_viewModel.Wgs84 = CoordinateFormatter.ToLatitudeLongitude(location, LatitudeLongitudeFormat.DecimalDegrees, precision);
_viewModel.Mgrs = CoordinateFormatter.ToMgrs(location, MgrsConversionMode.Automatic, precision, true);
_viewModel.Utm = CoordinateFormatter.ToUtm(location, UtmConversionMode.NorthSouthIndicators, true);
}