void ProcessNewOrientationReading(OrientationSensorReading orientationReading)
{
if (orientationReading == null)
{
return;
}
// Get the rotation matrix & convert to horizontal coordinates
SensorRotationMatrix m = orientationReading.RotationMatrix;
if (m == null)
{
return;
}
Matrix3D matrix3d = new Matrix3D(m.M11, m.M12, m.M13, 0,
m.M21, m.M22, m.M23, 0,
m.M31, m.M32, m.M33, 0,
0, 0, 0, 1);
if (!matrix3d.HasInverse)
{
return;
}
HorizontalCoordinate horzCoord = HorizontalCoordinate.FromMotionMatrix(matrix3d);
// Set the transform center on the Image element
imageTransform.CenterX = (imageWidth + maxDimension) *
(180 + horzCoord.Azimuth) / 360 - maxDimension / 2;
imageTransform.CenterY = (imageHeight + maxDimension) *
(90 - horzCoord.Altitude) / 180 - maxDimension / 2;
// Set the translation on the Border element
borderTransform.TranslateX = imageTransform.CenterX - pageWidth / 2;
borderTransform.TranslateY = imageTransform.CenterY - pageHeight / 2;
// Get rotation from Tilt
rotation = -horzCoord.Tilt;
UpdateImageTransforms();
}
