private async void AddSketch(object sender, EventArgs e)
{
// Enable the editing buttons.
_doneButton.Enabled = _undoButton.Enabled = _redoButton.Enabled = true;
// Prevent the user from adding pipes concurrently.
_addButton.Enabled = false;
// Get the geometry of the user drawn line.
Geometry geometry = await _sketchEditor.StartAsync(SketchCreationMode.Polyline);
_addButton.Enabled = true;
// Verify that the user has drawn a polyline.
if (!(geometry is Polyline))
{
return;
}
// Get the first point of the pipe.
MapPoint firstPoint = ((Polyline)geometry).Parts[0].StartPoint;
try
{
// Get the users selected elevation offset.
double elevationOffset = _elevationSlider.Value;
// Get the elevation of the geometry from the first point of the pipe.
double elevation = await _elevationSurface.GetElevationAsync(firstPoint);
// Create a polyline for the pipe at the selected altitude.
Polyline elevatedLine = GeometryEngine.SetZ(geometry, elevation + elevationOffset) as Polyline;
// Create a graphic for the pipe.
Graphic linegraphic = new Graphic(elevatedLine);
_pipesOverlay.Graphics.Add(linegraphic);
// Display a message with the pipes offset from the surface.
if (elevationOffset < 0)
{
_helpLabel.Text = string.Format("Pipe added {0:0.0}m below surface", elevationOffset * -1);
}
else if (elevationOffset == 0)
{
_helpLabel.Text = "Pipe added at ground level";
}
else
{
_helpLabel.Text = string.Format("Pipe added {0:0.0}m above the surface", elevationOffset);
}
// Enable the view button once a pipe has been added to the graphics overlay.
_viewButton.Enabled = true;
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
private void ZValueChanged(object sender, Windows.UI.Xaml.Controls.Primitives.RangeBaseValueChangedEventArgs e)
{
foreach (GraphicsOverlay overlay in MySceneView.GraphicsOverlays)
{
foreach (Graphic graphic in overlay.Graphics)
{
graphic.Geometry = GeometryEngine.SetZ(graphic.Geometry, e.NewValue);
}
}
}
private void ZValueChanged(object sender, System.Windows.RoutedPropertyChangedEventArgs <double> e)
{
foreach (GraphicsOverlay overlay in MySceneView.GraphicsOverlays)
{
foreach (Graphic graphic in overlay.Graphics)
{
graphic.Geometry = GeometryEngine.SetZ(graphic.Geometry, e.NewValue);
}
}
}
private void ZValueChanged(object sender, SeekBar.ProgressChangedEventArgs e)
{
foreach (GraphicsOverlay overlay in _mySceneView.GraphicsOverlays)
{
foreach (Graphic graphic in overlay.Graphics)
{
graphic.Geometry = GeometryEngine.SetZ(graphic.Geometry, _zSlider.Progress);
}
}
_zLabel.Text = $"{_zSlider.Progress} meters";
}
private void ZSlider_ValueChanged(object sender, ValueChangedEventArgs e)
{
// Ensure that the SceneView has loaded.
if (MySceneView == null)
{
return;
}
foreach (GraphicsOverlay overlay in MySceneView.GraphicsOverlays)
{
foreach (Graphic graphic in overlay.Graphics)
{
graphic.Geometry = GeometryEngine.SetZ(graphic.Geometry, e.NewValue);
}
}
// Update Z value in the UI.
ValueLabel.Text = $"Z Value: {(int)e.NewValue} meters";
}