static public Matrix <TRowKey, TColKey, double> LinearTransformRowsView <TRowKey, TColKey>(this Matrix <TRowKey, TColKey, double> parentMatrix, Matrix <TRowKey, string, LinearTransform> linearTransformMatrix)
{
Helper.CheckCondition(parentMatrix.RowKeys.SequenceEqual(linearTransformMatrix.RowKeys), "Expect the parentMatrix and the linearTransformMatrix to have the same rowKeys in the same order.");
//If the new won't change anything, just return the parent
if (linearTransformMatrix.Values.All(linearTransform => linearTransform.IsIdentity))
{
return(parentMatrix);
}
//!!!Could check of this is a SelectRowsAndColsView of a SelectRowsAndColsView and simplify (see TransposeView for an example)
var matrixView = new LinearTransformRowsView <TRowKey, TColKey>();
matrixView.SetUp(parentMatrix, linearTransformMatrix);
return(matrixView);
}
static public Matrix <TRowKey, TColKey, double> LinearTransformRowsView <TRowKey, TColKey>(this Matrix <TRowKey, TColKey, double> parentMatrix, IList <LinearTransform> linearTransformList)
{
Helper.CheckCondition(linearTransformList.Count == parentMatrix.RowCount, "Expect one item in linearTransformList for each row of the parent matrix");
//If the new won't change anything, just return the parent
if (linearTransformList.All(linearTransform => linearTransform.IsIdentity))
{
return(parentMatrix);
}
//!!!Could check of this is a SelectRowsAndColsView of a SelectRowsAndColsView and simplify (see TransposeView for an example)
var matrixView = new LinearTransformRowsView <TRowKey, TColKey>();
matrixView.SetUp(parentMatrix, linearTransformList);
return(matrixView);
}