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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkFEMElement2DC0QuadraticTriangularStrain.h"
#include <iostream>
//
int
itkFEMElement2DQuadraticTriangularTest(int, char *[])
{
using ElementType = itk::fem::Element;
using NodeType = ElementType::Node;
NodeType::Pointer n0, n1, n2;
ElementType::VectorType pt(2);
n0 = NodeType::New();
pt[0] = 0.;
pt[1] = 0.;
n0->SetCoordinates(pt);
n1 = NodeType::New();
pt[0] = 1.;
pt[1] = 1.;
n1->SetCoordinates(pt);
n2 = NodeType::New();
pt[0] = 0.;
pt[1] = 2.;
n2->SetCoordinates(pt);
using ElasticityType = itk::fem::MaterialLinearElasticity;
auto m = ElasticityType::New();
m->SetGlobalNumber(0);
m->SetYoungsModulus(300.0);
m->SetCrossSectionalArea(0.02);
m->SetMomentOfInertia(0.004);
using StrainType = itk::fem::Element2DC0QuadraticTriangularStrain;
auto e0 = StrainType::New();
e0->SetGlobalNumber(0);
e0->SetNode(0, n0);
e0->SetNode(1, n1);
e0->SetNode(2, n2);
e0->SetMaterial(m);
pt[0] = 0.5;
pt[1] = 0.5;
std::cout << "#integration points = " << e0->GetNumberOfIntegrationPoints(2) << std::endl;
std::cout << "shape fxns at " << pt << ":\n" << e0->ShapeFunctions(pt) << std::endl;
ElementType::MatrixType shapeD;
e0->ShapeFunctionDerivatives(pt, shapeD);
std::cout << "shape fxn derivatives:" << std::endl << shapeD << std::endl;
std::cout << "Test PASSED!" << std::endl;
return EXIT_SUCCESS;
}
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