private async void Edit_Click(object sender, RoutedEventArgs e)
{
try
{
// Hide the base UI and enable the complete button.
ShapesPanel.Visibility = Visibility.Collapsed;
CompleteButton.Visibility = Visibility.Visible;
SaveResetGrid.Visibility = Visibility.Collapsed;
// Create variables for the sketch creation mode and color.
SketchCreationMode creationMode;
// Set the creation mode and UI based on which button called this method.
switch (((Button)sender).Name)
{
case nameof(PointButton):
creationMode = SketchCreationMode.Point;
InstructionsText.Text = "Tap to add a point.";
StyleText.Text = "Select an icon for the placemark.";
break;
case nameof(PolylineButton):
creationMode = SketchCreationMode.Polyline;
InstructionsText.Text = "Tap to add a vertex.";
StyleText.Text = "Select a color for the placemark.";
break;
case nameof(PolygonButton):
creationMode = SketchCreationMode.Polygon;
InstructionsText.Text = "Tap to add a vertex.";
StyleText.Text = "Select a color for the placemark.";
break;
default:
return;
}
// Get the user-drawn geometry.
Geometry geometry = await MyMapView.SketchEditor.StartAsync(creationMode, true);
// Project the geometry to WGS84 (WGS84 is required by the KML standard).
Geometry projectedGeometry = GeometryEngine.Project(geometry, SpatialReferences.Wgs84);
// Create a KmlGeometry using the new geometry.
KmlGeometry kmlGeometry = new KmlGeometry(projectedGeometry, KmlAltitudeMode.ClampToGround);
// Create a new placemark.
_currentPlacemark = new KmlPlacemark(kmlGeometry);
// Add the placemark to the KmlDocument.
_kmlDocument.ChildNodes.Add(_currentPlacemark);
// Enable the style editing UI.
StyleBorder.Visibility = Visibility.Visible;
MainUI.Visibility = Visibility.Collapsed;
// Display the Icon picker or the color picker based on the creation mode.
IconPicker.Visibility = creationMode == SketchCreationMode.Point ? Visibility.Visible : Visibility.Collapsed;
ColorSelector.Visibility = creationMode != SketchCreationMode.Point ? Visibility.Visible : Visibility.Collapsed;
}
catch (ArgumentException)
{
await new MessageDialog("Unsupported Geometry", "Error").ShowAsync();
}
finally
{
// Reset the UI.
ShapesPanel.Visibility = Visibility.Visible;
CompleteButton.Visibility = Visibility.Collapsed;
InstructionsText.Text = "Select the type of feature you would like to add.";
// Enable the save and reset buttons.
SaveResetGrid.Visibility = Visibility;
}
}
private async void AddGeometry(UIAlertAction obj)
{
try
{
// Create variables for the sketch creation mode and color.
SketchCreationMode creationMode;
// Set the creation mode and UI based on which button called this method.
switch (obj.Title)
{
case "Point":
creationMode = SketchCreationMode.Point;
_helpLabel.Text = "Tap to add a point.";
break;
case "Polyline":
creationMode = SketchCreationMode.Polyline;
_helpLabel.Text = "Tap to add a vertex.";
break;
case "Polygon":
creationMode = SketchCreationMode.Polygon;
_helpLabel.Text = "Tap to add a vertex.";
break;
default:
return;
}
// Get the user-drawn geometry.
Geometry geometry = await _myMapView.SketchEditor.StartAsync(creationMode, true);
// Project the geometry to WGS84 (WGS84 is required by the KML standard).
Geometry projectedGeometry = GeometryEngine.Project(geometry, SpatialReferences.Wgs84);
// Create a KmlGeometry using the new geometry.
KmlGeometry kmlGeometry = new KmlGeometry(projectedGeometry, KmlAltitudeMode.ClampToGround);
// Create a new placemark.
_currentPlacemark = new KmlPlacemark(kmlGeometry);
// Add the placemark to the KmlDocument.
_kmlDocument.ChildNodes.Add(_currentPlacemark);
// Enable the style editing UI.
ChooseStyle();
}
catch (ArgumentException)
{
ShowMessage("Error", "Unsupported Geometry");
}
finally
{
// Re-add toolbar.
_toolbar.Items = new[]
{
_addButton,
new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace),
_saveButton,
_resetButton
};
_helpLabel.Text = "";
}
}
private async void Draw(object sender, DialogClickEventArgs e)
{
try
{
// Hide the base UI and enable the complete button.
_buttonLayout.Visibility = ViewStates.Invisible;
_completeButton.Visibility = ViewStates.Visible;
// Create variables for the sketch creation mode and color.
SketchCreationMode creationMode;
// Set the creation mode and UI based on which button called this method.
switch (e.Which)
{
case 0:
creationMode = SketchCreationMode.Point;
_status.Text = "Tap to add a point.";
//StyleText.Text = "Select an icon for the placemark.";
break;
case 1:
creationMode = SketchCreationMode.Polyline;
_status.Text = "Tap to add a vertex.";
//StyleText.Text = "Select a color for the placemark.";
break;
case 2:
creationMode = SketchCreationMode.Polygon;
_status.Text = "Tap to add a vertex.";
//StyleText.Text = "Select a color for the placemark.";
break;
default:
return;
}
// Get the user-drawn geometry.
Geometry geometry = await _myMapView.SketchEditor.StartAsync(creationMode, true);
// Project the geometry to WGS84 (WGS84 is required by the KML standard).
Geometry projectedGeometry = GeometryEngine.Project(geometry, SpatialReferences.Wgs84);
// Create a KmlGeometry using the new geometry.
KmlGeometry kmlGeometry = new KmlGeometry(projectedGeometry, KmlAltitudeMode.ClampToGround);
// Create a new placemark.
_currentPlacemark = new KmlPlacemark(kmlGeometry);
// Add the placemark to the KmlDocument.
_kmlDocument.ChildNodes.Add(_currentPlacemark);
// Choose whether to open the icon picker or color picker.
if (creationMode == SketchCreationMode.Point)
{
OpenIconDialog();
}
else
{
OpenColorDialog();
}
}
catch (ArgumentException)
{
new AlertDialog.Builder(this).SetMessage("Unsupported Geometry").SetTitle("Error").Show();
}
finally
{
// Reset the UI.
_buttonLayout.Visibility = ViewStates.Visible;
_completeButton.Visibility = ViewStates.Invisible;
_status.Text = "";
}
}
private async void Edit_Click(object sender, EventArgs e)
{
try
{
// Hide the base UI and enable the complete button.
ShapeGrid.IsVisible = false;
CompleteButton.IsVisible = true;
SaveResetGrid.IsEnabled = false;
// Create variables for the sketch creation mode and color.
SketchCreationMode creationMode;
// Set the creation mode and UI based on which button called this method.
switch (((Button)sender).Text)
{
case "Point":
creationMode = SketchCreationMode.Point;
Status.Text = "Tap to add a point.";
break;
case "Polyline":
creationMode = SketchCreationMode.Polyline;
Status.Text = "Tap to add a vertex.";
break;
case "Polygon":
creationMode = SketchCreationMode.Polygon;
Status.Text = "Tap to add a vertex.";
break;
default:
return;
}
// Get the user-drawn geometry.
Geometry geometry = await MyMapView.SketchEditor.StartAsync(creationMode, true);
// Project the geometry to WGS84 (WGS84 is required by the KML standard).
Geometry projectedGeometry = GeometryEngine.Project(geometry, SpatialReferences.Wgs84);
// Create a KmlGeometry using the new geometry.
KmlGeometry kmlGeometry = new KmlGeometry(projectedGeometry, KmlAltitudeMode.ClampToGround);
// Create a new placemark.
_currentPlacemark = new KmlPlacemark(kmlGeometry);
// Add the placemark to the KmlDocument.
_kmlDocument.ChildNodes.Add(_currentPlacemark);
// Choose whether to enable the icon picker or color picker.
IconPicker.IsVisible = creationMode == SketchCreationMode.Point;
ColorPicker.IsVisible = creationMode != SketchCreationMode.Point;
// Enable the style editing UI.
StyleUI.IsVisible = true;
MainUI.IsVisible = false;
}
catch (ArgumentException)
{
await Application.Current.MainPage.DisplayAlert("Error", "Unsupported Geometry", "OK");
}
finally
{
// Reset the UI.
ShapeGrid.IsVisible = true;
CompleteButton.IsVisible = false;
Status.Text = "Select the type of feature you would like to add.";
// Enable the save and reset buttons.
SaveResetGrid.IsEnabled = true;
}
}
/// <summary>
/// Initializes a new KML <c><Document></c> element.
/// </summary>
/// <param name="xml">The XML element the document should be based on.</param>
/// <param name="namespaces">The XML namespace.</param>
protected KmlPlacemark(XElement xml, XmlNamespaceManager namespaces) : base(xml, namespaces)
{
ExtendedData = xml.GetElement("kml:ExtendedData", namespaces, KmlExtendedData.Parse);
Geometry = KmlUtils.ParseGeometryChildren(xml, namespaces).FirstOrDefault();
}
/// <summary>
/// Initializes a new KML <c><Placemark></c> element containing the specified <paramref name="geometry"/>..
/// </summary>
/// <param name="geometry">The geometry to be added.</param>
public KmlPlacemark(KmlGeometry geometry)
{
Geometry = geometry;
}
