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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.
*
*=========================================================================*/
// Software Guide : BeginLatex
//
// \index{itk::GaussianSpatialObject}
//
// This example shows how to create a \doxygen{GaussianSpatialObject} which
// defines a Gaussian in an n-dimensional space. This object is particularly
// useful to query the value at a point in physical space. Let's begin by
// including the appropriate header file.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkGaussianSpatialObject.h"
// Software Guide : EndCodeSnippet
int
main(int, char *[])
{
// Software Guide : BeginLatex
//
// The \doxygen{GaussianSpatialObject} is templated
// over the dimensionality of the object.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
using GaussianType = itk::GaussianSpatialObject<3>;
auto myGaussian = GaussianType::New();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The \code{SetMaximum()} function is used to set the maximum
// value of the Gaussian.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
myGaussian->SetMaximum(2);
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The radius of the Gaussian is defined by the
// \code{SetRadiusInObjectSpace()} method.
// By default the radius is set to 1.0.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
myGaussian->SetRadiusInObjectSpace(3);
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The standard \code{ValueAt()} function is used to determine the value
// of the Gaussian at a particular point in physical space.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
itk::Point<double, 3> pt;
pt[0] = 1;
pt[1] = 2;
pt[2] = 1;
double value;
myGaussian->ValueAtInWorldSpace(pt, value);
std::cout << "ValueAtInWorldSpace(" << pt << ") = " << value << std::endl;
// Software Guide : EndCodeSnippet
return EXIT_SUCCESS;
}
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