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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 "itkGaussianSpatialObject.h"
#include "itkMath.h"
#include "itkTestingMacros.h"
int
itkGaussianSpatialObjectTest(int, char *[])
{
using GaussianType = itk::GaussianSpatialObject<4>;
auto myGaussian = GaussianType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(myGaussian, GaussianSpatialObject, SpatialObject);
GaussianType::ScalarType maximum = 2;
myGaussian->SetMaximum(maximum);
ITK_TEST_SET_GET_VALUE(maximum, myGaussian->GetMaximum());
GaussianType::ScalarType radius = 3;
myGaussian->SetRadiusInObjectSpace(radius);
ITK_TEST_SET_GET_VALUE(radius, myGaussian->GetRadiusInObjectSpace());
GaussianType::ScalarType sigma = 1.5;
myGaussian->SetSigmaInObjectSpace(sigma);
ITK_TEST_SET_GET_VALUE(sigma, myGaussian->GetSigmaInObjectSpace());
GaussianType::PointType center;
center.Fill(0.0);
myGaussian->SetCenterInObjectSpace(center);
ITK_TEST_SET_GET_VALUE(center, myGaussian->GetCenterInObjectSpace());
// Point consistency
itk::Point<double, 4> in;
in[0] = 1;
in[1] = 2;
in[2] = 1;
in[3] = 1;
itk::Point<double, 4> out;
out[0] = 0;
out[1] = 4;
out[2] = 0;
out[3] = 0;
// Once all values of the Gaussian have been set, it must be updated
myGaussian->Update();
double value;
myGaussian->ValueAtInWorldSpace(in, value);
std::cout << "ValueAt(" << in << ") = " << value << std::endl;
std::cout << "Is Inside: ";
if (!myGaussian->IsInsideInWorldSpace(in))
{
std::cout << "[FAILED]" << std::endl;
return EXIT_FAILURE;
}
if (myGaussian->IsInsideInWorldSpace(out))
{
std::cout << "[FAILED]" << std::endl;
return EXIT_FAILURE;
}
std::cout << "[PASSED]" << std::endl;
std::cout << "GetEllipsoid:" << std::endl;
std::cout << myGaussian->GetEllipsoid() << std::endl;
std::cout << "ObjectToWorldTransform" << std::endl;
// Create myGaussian2 as a child of myGaussian
auto myGaussian2 = GaussianType::New();
std::cout << "AddChild" << std::endl;
myGaussian->AddChild(myGaussian2);
// Once you add children, update their objectToWorldTransform individually
// or by calling it at the top level object
std::cout << "ComputeObjectToWorld" << std::endl;
myGaussian->Update();
std::cout << "SetOffset" << std::endl;
const GaussianType::TransformType::OffsetType::ValueType offset10 = 10.0;
GaussianType::TransformType::OffsetType offset;
offset.Fill(offset10);
myGaussian->GetModifiableObjectToWorldTransform()->SetOffset(offset);
myGaussian->ComputeObjectToParentTransform();
// Once you change an object's transform, you must call ComputeObjectToWorld
// for it and its children to update their cached transforms
myGaussian->Update();
std::cout << "SetOffset2" << std::endl;
const GaussianType::TransformType::OffsetType::ValueType offset15 = 15.0;
GaussianType::TransformType::OffsetType offset2;
offset2.Fill(offset15);
myGaussian2->GetModifiableObjectToWorldTransform()->SetOffset(offset2);
myGaussian2->ComputeObjectToParentTransform();
// Once you change an object's transform, you must call ComputeObjectToWorld
// for it and its children to update their cached transforms
myGaussian2->Update();
GaussianType::TransformType::OffsetType offset3;
offset3 = myGaussian2->GetObjectToParentTransform()->GetOffset();
if (itk::Math::NotAlmostEquals(offset3[0], offset15 - offset10) ||
itk::Math::NotAlmostEquals(offset3[1], offset15 - offset10) ||
itk::Math::NotAlmostEquals(offset3[2], offset15 - offset10) ||
itk::Math::NotAlmostEquals(offset3[3], offset15 - offset10))
{
std::cout << "[FAILED] : " << offset3 << " != [5.0,5.0,5.0,5.0]" << std::endl;
return EXIT_FAILURE;
}
std::cout << "[PASSED]" << std::endl;
std::cout << "ComputeFamilyBoundingBox: ";
myGaussian->ComputeFamilyBoundingBox(GaussianType::MaximumDepth);
const GaussianType::BoundingBoxType * boundingBox = myGaussian->GetFamilyBoundingBoxInWorldSpace();
std::cout << "World bounds = " << boundingBox->GetBounds() << std::endl;
std::cout << "World Center = " << myGaussian->GetCenterInObjectSpace() << std::endl;
std::cout << "World Radius = " << myGaussian->GetRadiusInObjectSpace() << std::endl;
for (unsigned int i = 0; i < 3; ++i)
{
if (itk::Math::NotAlmostEquals(boundingBox->GetBounds()[2 * i], 7.0) ||
itk::Math::NotAlmostEquals(boundingBox->GetBounds()[2 * i + 1], 16.0))
{
std::cout << "[FAILED]" << std::endl;
return EXIT_FAILURE;
}
}
std::cout << "Test finished" << std::endl;
return EXIT_SUCCESS;
}
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