private async void Area(object sender, RoutedEventArgs e)
{
float area = AMapUtils.CalculateArea(AMapUtils.GetSouthWest(pointsOfRect), AMapUtils.GetNorthEast(pointsOfRect));
MessageDialog messageDialog = new MessageDialog("面积" + area + "m^2");
await messageDialog.ShowAsync();
}
private async void Distance(object sender, RoutedEventArgs e)
{
float distance = AMapUtils.CalculateLineDistance(pointsOfLine[0], pointsOfLine[1]);
MessageDialog messageDialog = new MessageDialog("线长" + distance + "m");
await messageDialog.ShowAsync();
}
