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"This module provides simple C++ code for verification of UFC code."
# Copyright (C) 2010 Kristian B. Oelgaard
#
# This file is part of FFC.
#
# FFC is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# FFC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with FFC. If not, see <http://www.gnu.org/licenses/>.
#
# First added: 2010-01-18
# Last changed: 2010-01-18
#evaluate_basis_code = """\
##include <iostream>
##include <ufc.h>
##include "test.h"
#int main()
#{
# // Create element
# %(element)s element;
# // Size of dof_values
# // FIXME: This will not work for TensorElements
# int N = element.value_dimension(0);
# // Create values
# double* dof_values = new double[N];
# for (unsigned int i = 0; i < N; i++)
# dof_values[i] = 0.0;
# // Create cell and fill with some arbitrary data
# double cell_coordinates[8][3] = {{0.90, 0.34, 0.45},
# {0.56, 0.76, 0.83},
# {0.98, 0.78, 0.19},
# {0.12, 0.56, 0.66},
# {0.96, 0.78, 0.63},
# {0.11, 0.35, 0.49},
# {0.51, 0.88, 0.65},
# {0.98, 0.45, 0.01}};
# ufc::cell cell;
# cell.coordinates = new double * [8];
# for (int i = 0; i < 8; i++)
# {
# cell.coordinates[i] = new double[3];
# for (int j = 0; j < 3; j++)
# cell.coordinates[i][j] = cell_coordinates[i][j];
# }
# // Random coordinates where we want to evaluate the basis functions
# double coordinates[3] = {0.32, 0.51, 0.05};
# // Loop element space dimension and call evaluate_basis.
# for (unsigned int i = 0; i < element.space_dimension(); i++)
# {
# element.evaluate_basis(i, dof_values, coordinates, cell);
# // Print values
# for (unsigned int j = 0; j < N; j++)
# std::cout << dof_values[j] << " ";
# }
# std::cout << std::endl;
# return 0;
#}
#"""
evaluate_basis_code_fiat = """\
#include <iostream>
#include <ufc.h>
#include <cstdlib>
#include "test.h"
int main(int argc, char* argv[])
{
// Create element
%(element)s element;
// Get derivative order
unsigned int n = std::atoi(argv[1]);
// Value dimension
// FIXME: This will not work for TensorElements
int N = element.value_dimension(0);
// Compute number of derivatives.
unsigned int num_derivatives = 1;
for (unsigned int r = 0; r < n; r++)
{
num_derivatives *= %(dim)d;
}
// Create values
unsigned int num_dof_vals = N*num_derivatives;
double* dof_values = new double[num_dof_vals];
for (unsigned int i = 0; i < num_dof_vals; i++)
dof_values[i] = 0.0;
%(cell_ref_coords)s
ufc::cell cell;
cell.coordinates = new double * [%(num_coords)d];
for (int i = 0; i < %(num_coords)d; i++)
{
cell.coordinates[i] = new double[%(dim)d];
for (int j = 0; j < %(dim)d; j++)
cell.coordinates[i][j] = cell_ref_coords[i][j];
}
// Random points where we want to evaluate the basis functions
// coordinates of dofs and three arbitrary points on the reference cell.
double points[%(num_points)d][%(dim)d] = %(points)s
// Init array of coordinates
double coordinates[3] = {0,0,0};
std::cout.precision(8);
std::cout.setf(std::ios::fixed);
// If we're testing evaluate_basis, loop all points.
if (n == 0)
{
for (unsigned int p = 0; p < %(num_points)d; p++)
{
for (unsigned int d = 0; d < %(dim)d; d++)
{
coordinates[d] = points[p][d];
}
// Loop element space dimension and call evaluate_basis.
for (unsigned int i = 0; i < element.space_dimension(); i++)
{
element.evaluate_basis(i, dof_values, coordinates, cell);
// Print values
for (unsigned int j = 0; j < num_dof_vals; j++)
std::cout << dof_values[j] << " ";
}
std::cout << std::endl;
}
}
else
{
// Else loop the arbitrary 3 points, otherwise the number of tests explode
// with the element.space_dimension()^2.
for (unsigned int p = element.space_dimension(); p < %(num_points)d; p++)
{
for (unsigned int d = 0; d < %(dim)d; d++)
{
coordinates[d] = points[p][d];
}
// Loop element space dimension and call evaluate_basis.
for (unsigned int i = 0; i < element.space_dimension(); i++)
{
element.evaluate_basis_derivatives(i, n, dof_values, coordinates, cell);
// Print values
for (unsigned int j = 0; j < num_dof_vals; j++)
std::cout << dof_values[j] << " ";
}
std::cout << std::endl;
}
}
return 0;
}
"""
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