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/***********************************************/
/**
* @file matrixGeneratorShift.h
*
* @brief Shift start row and start column of a matrix.
*
* @author Torsten Mayer-Guerr
* @date 2017-09-01
*
*/
/***********************************************/
#ifndef __GROOPS_MATRIXCGENERATORSHIFT__
#define __GROOPS_MATRIXCGENERATORSHIFT__
// Latex documentation
#ifdef DOCSTRING_MatrixGenerator
static const char *docstringMatrixGeneratorShift = R"(
\subsection{Shift}
Shift start row and start column of a matrix.
In other words: zero lines and columns are inserted at the beginning of the matrix.
)";
#endif
/***********************************************/
#include "base/import.h"
#include "matrixGenerator.h"
/***** CLASS ***********************************/
/** @brief Shift of a matrix.
* @ingroup matrixGeneratorGroup
* @see MatrixGenerator */
class MatrixGeneratorShift : public MatrixGeneratorBase
{
MatrixGeneratorPtr matrix;
ExpressionVariablePtr exprStartRow, exprStartCol;
public:
MatrixGeneratorShift(Config &config);
void compute(Matrix &A, UInt rowsBefore, UInt columnsBefore, UInt &startRow, UInt &startCol);
};
/***********************************************/
/***** Inlines *********************************/
/***********************************************/
inline MatrixGeneratorShift::MatrixGeneratorShift(Config &config)
{
try
{
readConfig(config, "matrix", matrix, Config::MUSTSET, "", "");
readConfig(config, "startRow", exprStartRow, Config::DEFAULT, "0", "start row (variables: rowsBefore, columnsBefore, rows, columns)");
readConfig(config, "startColumn", exprStartCol, Config::DEFAULT, "0", "start column (variables: rowsBefore, columnsBefore, rows, columns)");
if(isCreateSchema(config)) return;
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
inline void MatrixGeneratorShift::compute(Matrix &A, UInt rowsBefore, UInt columnsBefore, UInt &startRow, UInt &startCol)
{
try
{
A = matrix->compute();
VariableList varList;
varList.setVariable("rowsBefore", static_cast<Double>(rowsBefore));
varList.setVariable("columnsBefore", static_cast<Double>(columnsBefore));
varList.setVariable("rows", static_cast<Double>(A.rows()));
varList.setVariable("columns", static_cast<Double>(A.columns()));
startRow = static_cast<UInt>(exprStartRow->evaluate(varList));
startCol = static_cast<UInt>(exprStartCol->evaluate(varList));
}
catch(std::exception &e)
{
GROOPS_RETHROW(e)
}
}
/***********************************************/
#endif
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