BlinkIDDemo.Rectangle.AnimateOrientationChange C# (CSharp) Method

        public void AnimateOrientationChange(OrientationChangedEventArgs e)
        {
            // check if new orientation is landscape or portrait
            if (e.Orientation == PageOrientation.Landscape || e.Orientation == PageOrientation.LandscapeLeft || e.Orientation == PageOrientation.LandscapeRight) {
                // if landscape dimensions were not calculated we must do it now
                if (!mAnimationInitialized) {
                    // calculate landscape box size based on screen size
                    mLandscapeWidth = ActualWidth * kLandscapeRatio;
                    mLandscapeHeight = mLandscapeWidth * kAspectRatio;

                    // set animation values for both animations (landcape to portrait and reverse)
                    mP2LWidthAnimation.From = mPortraitHeight;
                    mP2LWidthAnimation.To = mLandscapeWidth;

                    mP2LHeightAnimation.From = mPortraitWidth;
                    mP2LHeightAnimation.To = mLandscapeHeight;

                    mL2PWidthAnimation.From = mLandscapeHeight;
                    mL2PWidthAnimation.To = mPortraitWidth;

                    mL2PHeightAnimation.From = mLandscapeWidth;
                    mL2PHeightAnimation.To = mPortraitHeight;
                    // mark animation as initialized and ready
                    mAnimationInitialized = true;
                }
                // start portrait to landscape animation
                mP2LAnimation.Begin();
            } else {
                // start landscape to portrait animation if all values are calculated
                if (mAnimationInitialized) {
                    mL2PAnimation.Begin();
                }
            }
        }