laplacian.cpp

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/*
* SPDX-License-Identifier: GPL-3.0-or-later
* © 2008-2024 San Diego State University Research Foundation (SDSURF).
* See LICENSE file or https://www.gnu.org/licenses/gpl-3.0.html for details. 
*/
 
/*
 * @file laplacian.cpp
 * 
 * @brief Mimetic Laplacian Constructors
 * 
 * @date 2024/10/15
 * 
 */
 
 
 
#include "laplacian.h"
 
// 1-D Constructor
Laplacian::Laplacian(u16 k, u32 m, Real dx) {
  Divergence div(k, m, dx);
  Gradient grad(k, m, dx);
 
  // Dimensions = m+2, m+2
  *this = (sp_mat)div * (sp_mat)grad;
}
 
// 2-D Constructor
Laplacian::Laplacian(u16 k, u32 m, u32 n, Real dx, Real dy) {
  Divergence div(k, m, n, dx, dy);
  Gradient grad(k, m, n, dx, dy);
 
  // Dimensions = (m+2)*(n+2), (m+2)*(n+2)
  *this = (sp_mat)div * (sp_mat)grad;
}
 
// 3-D Constructor
Laplacian::Laplacian(u16 k, u32 m, u32 n, u32 o, Real dx, Real dy, Real dz) {
  Divergence div(k, m, n, o, dx, dy, dz);
  Gradient grad(k, m, n, o, dx, dy, dz);
 
  // Dimensions = (m+2)*(n+2)*(o+2), (m+2)*(n+2)*(o+2)
  *this = (sp_mat)div * (sp_mat)grad;
}