private void OpenPopup(Popup popupPanel, PlaneProjection panelCarrot, Button panelButton, int horizontalOffset, int verticalOffset)
{
//First we need to find out how big our window is, so we can center to it.
CoreWindow currentWindow = Window.Current.CoreWindow;
//Set our background rectangle to fill the entire window
rectBackgroundHide.Height = currentWindow.Bounds.Height;
rectBackgroundHide.Width = currentWindow.Bounds.Width;
rectBackgroundHide.Margin = new Thickness(0, 0, 0, 0);
//Make sure the background is visible
rectBackgroundHide.Visibility = Windows.UI.Xaml.Visibility.Visible;
//Now we figure out where the center of the screen is, and we
//move the popup to that location.
var buttonBounds = panelButton.GetElementBounds(this);
popupPanel.HorizontalOffset = buttonBounds.Left + horizontalOffset;
popupPanel.VerticalOffset = buttonBounds.Top + verticalOffset;
panelCarrot.RotationZ = 0;
popupPanel.IsOpen = true;
}
