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Attempt to solve write back to c vector input

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- Solution already looks good to me (in x-direction)
This commit is contained in:
Max Luebke 2022-02-10 15:34:07 +01:00
parent dc5bc42bb8
commit cda16b7744
1 changed files with 17 additions and 5 deletions
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22
src/BTCSDiffusion.cpp
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@ -8,6 +8,7 @@
#include <cassert> #include <cassert>
#include <iomanip> #include <iomanip>
#include <iterator> #include <iterator>
#include <ostream>
#include <tuple> #include <tuple>
#include <vector> #include <vector>
@ -166,11 +167,22 @@ void BTCSDiffusion::simulate2D(Eigen::Map<Eigen::MatrixXd> &c,
solveLES(); solveLES();
x_vector.conservativeResize(c.rows(), c.cols() + 2); Eigen::MatrixXd test = x_vector;
// std::cout << x_vector << std::endl; std::cout << test << std::endl;
c = x_vector.block(0, 1, c.rows(), c.cols()); test.transposeInPlace();
test.conservativeResize(c.rows(), c.cols() + 2);
std::cout << test << std::endl;
Eigen::Map<Eigen::MatrixXd> tmp(test.data(), c.rows(), c.cols() +2);
std::cout << x_vector << std::endl;
std::cout << tmp << std::endl;
c = tmp.block(0, 1, c.rows(), c.cols());
} }
void BTCSDiffusion::fillMatrixFromRow(const Eigen::VectorXd &alpha, int n_cols, void BTCSDiffusion::fillMatrixFromRow(const Eigen::VectorXd &alpha, int n_cols,
@ -181,13 +193,13 @@ void BTCSDiffusion::fillMatrixFromRow(const Eigen::VectorXd &alpha, int n_cols,
n_cols += 2; n_cols += 2;
int offset = n_cols * row; int offset = n_cols * row;
A_matrix.insert(offset, offset) = !left_constant; A_matrix.insert(offset, offset) = 1;
if (left_constant) if (left_constant)
A_matrix.insert(offset + 1, offset + 1) = 1; A_matrix.insert(offset + 1, offset + 1) = 1;
A_matrix.insert(offset + (n_cols - 1), offset + (n_cols - 1)) = A_matrix.insert(offset + (n_cols - 1), offset + (n_cols - 1)) =
!right_constant; 1;
if (right_constant) if (right_constant)
A_matrix.insert(offset + (n_cols - 2), offset + (n_cols - 2)) = 1; A_matrix.insert(offset + (n_cols - 2), offset + (n_cols - 2)) = 1;