private void btnGetDistance_Click(object sender, EventArgs e)
{
InMemoryFeatureLayer usInMemoryLayer = (InMemoryFeatureLayer)winformsMap1.FindFeatureLayer("USInMemoryFeatureLayer");
InMemoryFeatureLayer chinaInMemoryLayer = (InMemoryFeatureLayer)winformsMap1.FindFeatureLayer("ChinaInMemoryFeatureLayer");
BaseShape usShape = usInMemoryLayer.InternalFeatures["US"].GetShape();
BaseShape chinaShape = chinaInMemoryLayer.InternalFeatures["CHINA"].GetShape();
double distance = usShape.GetDistanceTo(chinaShape, GeographyUnit.DecimalDegree, DistanceUnit.Kilometer);
txtDistance.Text = string.Format(CultureInfo.InvariantCulture, "{0 :N4} Km", distance);
}
private void btnGetDistance_Click(object sender, RoutedEventArgs e)
{
InMemoryFeatureLayer usInMemoryLayer = (InMemoryFeatureLayer)mapView.FindFeatureLayer("USInMemoryFeatureLayer");
InMemoryFeatureLayer chinaInMemoryLayer = (InMemoryFeatureLayer)mapView.FindFeatureLayer("ChinaInMemoryFeatureLayer");
ProjectionConverter project = new ProjectionConverter(3857, 4326);
project.Open();
BaseShape usShape = project.ConvertToExternalProjection(usInMemoryLayer.InternalFeatures["US"].GetShape());
BaseShape chinaShape = project.ConvertToExternalProjection(chinaInMemoryLayer.InternalFeatures["CHINA"].GetShape());
project.Close();
double distance = usShape.GetDistanceTo(chinaShape, GeographyUnit.DecimalDegree, DistanceUnit.Kilometer);
txtDistance.Text = string.Format(CultureInfo.InvariantCulture, "{0 :N4} Km", distance);
}
