public static Matrix ComposeTransform(Matrix.Decomposed decomposed)
{
// According to https://www.w3.org/TR/css-transforms-1/#recomposing-to-a-2d-matrix
return(Matrix.Identity
.Prepend(Matrix.CreateTranslation(decomposed.Translate))
.Prepend(Matrix.CreateRotation(decomposed.Angle))
.Prepend(Matrix.CreateSkew(decomposed.Skew.X, decomposed.Skew.Y))
.Prepend(Matrix.CreateScale(decomposed.Scale)));
}
public static Matrix.Decomposed InterpolateDecomposedTransforms(ref Matrix.Decomposed from, ref Matrix.Decomposed to, double progress)
{
Matrix.Decomposed result = default;
result.Translate = InterpolateVectors(from.Translate, to.Translate, progress);
result.Scale = InterpolateVectors(from.Scale, to.Scale, progress);
result.Skew = InterpolateVectors(from.Skew, to.Skew, progress);
result.Angle = InterpolateScalars(from.Angle, to.Angle, progress);
return(result);
}
private static bool ComputeDecomposedTransform(TransformOperations operations, int startOffset, out Matrix.Decomposed decomposed)
{
Matrix transform = operations.ApplyTransforms(startOffset);
if (!Matrix.TryDecomposeTransform(transform, out decomposed))
{
return(false);
}
return(true);
}
