private async void CentroidButton_Click(object sender, RoutedEventArgs e)
{
var polygon = await RequestUserShape(DrawShape.Polygon, _polygonSymbol) as Polygon;
try
{
var result = await _mensurationTask.CentroidAsync(polygon, new MensurationPointParameters());
ShowResults(result, ((Button)sender).Tag.ToString());
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Mensuration Error");
}
}
private async void CentroidItem_Click(object sender, RoutedEventArgs e)
{
try
{
var polygon = await RequestUserShape(DrawShape.Polygon, _polygonSymbol) as Polygon;
// Requesting shape canceled
if (polygon == null)
{
return;
}
var result = await _mensurationTask.CentroidAsync(polygon, new MensurationPointParameters());
ShowResults(result, ((MenuFlyoutItem)sender).Text);
}
catch (Exception ex)
{
var _ = new MessageDialog(ex.Message, "Sample Error").ShowAsync();
}
}
void drawtool_DrawComplete(object sender, DrawEventArgs e)
{
e.Geometry.SpatialReference = MyMap.SpatialReference;
Graphic graphic = new Graphic()
{
Geometry = e.Geometry
};
if (e.Geometry is MapPoint)
{
graphic.Symbol = LayoutRoot.Resources["DrawPointSymbol"] as SimpleMarkerSymbol;
}
else if (e.Geometry is Polyline)
{
graphic.Symbol = LayoutRoot.Resources["DrawPolylineSymbol"] as SimpleLineSymbol;
}
else if (e.Geometry is Polygon || e.Geometry is Envelope)
{
graphic.Symbol = LayoutRoot.Resources["DrawPolygonSymbol"] as SimpleFillSymbol;
}
drawGraphicsLayer.Graphics.Add(graphic);
draw.IsEnabled = false;
Geometry fromGeometry = null;
Geometry toGeometry = null;
switch (mensurationOperation)
{
case MensurationOperation.DistanceAndAngle:
case MensurationOperation.HeightFromBaseAndTop:
case MensurationOperation.HeightFromBaseAndTopShadow:
case MensurationOperation.HeightFromTopAndTopShadow:
fromGeometry = (e.Geometry as Polyline).Paths[0][0];
fromGeometry.SpatialReference = MyMap.SpatialReference;
toGeometry = (e.Geometry as Polyline).Paths[0][1];
toGeometry.SpatialReference = MyMap.SpatialReference;
break;
case MensurationOperation.AreaAndPerimeter:
case MensurationOperation.Centroid:
case MensurationOperation.Point:
fromGeometry = e.Geometry;
break;
}
esriUnits?LinearUnit = null;
switch (comboLinearUnit.SelectedIndex)
{
case 0:
LinearUnit = esriUnits.esriUnknownUnits;
break;
case 1:
LinearUnit = esriUnits.esriInches;
break;
case 2:
LinearUnit = esriUnits.esriPoints;
break;
case 3:
LinearUnit = esriUnits.esriFeet;
break;
case 4:
LinearUnit = esriUnits.esriYards;
break;
case 5:
LinearUnit = esriUnits.esriMiles;
break;
case 6:
LinearUnit = esriUnits.esriNauticalMiles;
break;
case 7:
LinearUnit = esriUnits.esriMillimeters;
break;
case 8:
LinearUnit = esriUnits.esriCentimeters;
break;
case 9:
LinearUnit = esriUnits.esriMeters;
break;
case 10:
LinearUnit = esriUnits.esriKilometers;
break;
case 11:
LinearUnit = esriUnits.esriDecimalDegrees;
break;
case 12:
LinearUnit = esriUnits.esriDecimeters;
break;
}
DirectionUnit AngularUnit = DirectionUnit.Default;
switch (comboAngularUnit.SelectedIndex)
{
case 0:
AngularUnit = DirectionUnit.Default;
break;
case 1:
AngularUnit = DirectionUnit.Radians;
break;
case 2:
AngularUnit = DirectionUnit.DecimalDegrees;
break;
case 3:
AngularUnit = DirectionUnit.DegreesMinutesSeconds;
break;
case 4:
AngularUnit = DirectionUnit.Gradians;
break;
case 5:
AngularUnit = DirectionUnit.Gons;
break;
}
AreaUnit AreaUnits = AreaUnit.Default;
switch (comboAreaUnit.SelectedIndex)
{
case 0:
AreaUnits = AreaUnit.Default;
break;
case 1:
AreaUnits = AreaUnit.SquareInches;
break;
case 2:
AreaUnits = AreaUnit.SquareFeet;
break;
case 3:
AreaUnits = AreaUnit.SquareYards;
break;
case 4:
AreaUnits = AreaUnit.Acres;
break;
case 5:
AreaUnits = AreaUnit.SquareMiles;
break;
case 6:
AreaUnits = AreaUnit.SquareMillimeters;
break;
case 7:
AreaUnits = AreaUnit.SquareCentimeters;
break;
case 8:
AreaUnits = AreaUnit.SquareDecimeters;
break;
case 9:
AreaUnits = AreaUnit.SquareMeters;
break;
case 10:
AreaUnits = AreaUnit.Ares;
break;
case 11:
AreaUnits = AreaUnit.Hectares;
break;
case 12:
AreaUnits = AreaUnit.SquareKilometers;
break;
}
if (!mensurationTask.IsBusy)
{
switch (mensurationOperation)
{
case MensurationOperation.AreaAndPerimeter:
MensurationAreaParameter p1 = new MensurationAreaParameter();
p1.LinearUnit = LinearUnit;
p1.AreaUnits = AreaUnits;
mensurationTask.AreaAndPerimeterAsync(fromGeometry as Polygon, p1);
break;
case MensurationOperation.Centroid:
MensurationPointParameter p3 = new MensurationPointParameter();
mensurationTask.CentroidAsync(fromGeometry as Polygon, p3);
break;
case MensurationOperation.DistanceAndAngle:
MensurationLengthParameter p5 = new MensurationLengthParameter();
p5.LinearUnit = LinearUnit;
p5.AngularUnit = AngularUnit;
mensurationTask.DistanceAndAngleAsync(fromGeometry as MapPoint, toGeometry as MapPoint, p5);
break;
case MensurationOperation.Point:
MensurationPointParameter p7 = new MensurationPointParameter();
mensurationTask.PointAsync(fromGeometry as MapPoint, p7);
break;
case MensurationOperation.HeightFromBaseAndTop:
MensurationHeightParameter p9 = new MensurationHeightParameter();
p9.LinearUnit = LinearUnit;
mensurationTask.HeightFromBaseAndTopAsync(fromGeometry as MapPoint, toGeometry as MapPoint, p9);
break;
case MensurationOperation.HeightFromBaseAndTopShadow:
MensurationHeightParameter p10 = new MensurationHeightParameter();
p10.LinearUnit = LinearUnit;
mensurationTask.HeightFromBaseAndTopShadowAsync(fromGeometry as MapPoint, toGeometry as MapPoint, p10);
break;
case MensurationOperation.HeightFromTopAndTopShadow:
MensurationHeightParameter p11 = new MensurationHeightParameter();
p11.LinearUnit = LinearUnit;
mensurationTask.HeightFromTopAndTopShadowAsync(fromGeometry as MapPoint, toGeometry as MapPoint, p11);
break;
}
}
}