mirror of https://github.com/CGAL/cgal
62 lines
2.6 KiB
C++
62 lines
2.6 KiB
C++
// Copyright (c) 2022 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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//
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// $URL$
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// $Id$
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Julian Stahl
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#ifndef CGAL_IMPLICIT_CARTESIAN_GRID_DOMAIN_H
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#define CGAL_IMPLICIT_CARTESIAN_GRID_DOMAIN_H
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#include <CGAL/Default_gradients.h>
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#include <CGAL/Isosurfacing_3/internal/Base_domain.h>
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#include <CGAL/Isosurfacing_3/internal/Cartesian_grid_geometry.h>
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#include <CGAL/Isosurfacing_3/internal/Grid_topology.h>
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#include <CGAL/Isosurfacing_3/internal/Implicit_function_with_geometry.h>
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#include <CGAL/license/Isosurfacing_3.h>
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namespace CGAL {
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namespace Isosurfacing {
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template <class GeomTraits, typename PointFunction, typename Gradient_>
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using Implicit_cartesian_grid_domain =
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Base_domain<GeomTraits, Grid_topology, Cartesian_grid_geometry<GeomTraits>,
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Implicit_function_with_geometry<GeomTraits, Cartesian_grid_geometry<GeomTraits>, PointFunction>,
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Gradient_>;
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template <class GeomTraits, typename PointFunction, typename Gradient_ = Zero_gradient<GeomTraits>>
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Implicit_cartesian_grid_domain<GeomTraits, PointFunction, Gradient_> create_implicit_cartesian_grid_domain(
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const Bbox_3& bbox, const typename GeomTraits::Vector_3& spacing, const PointFunction& point_function,
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const Gradient_& gradient = Gradient_()) {
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typedef Implicit_cartesian_grid_domain<GeomTraits, PointFunction, Gradient_> Domain;
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typedef typename Domain::Topology Topology;
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typedef typename Domain::Geometry Geometry;
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typedef typename Domain::Function Function;
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typedef typename Domain::Gradient Gradient;
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typedef typename Function::element_type::Point_function Point_function;
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const std::size_t size_i = std::ceil(bbox.x_span() / spacing.x()) + 1;
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const std::size_t size_j = std::ceil(bbox.y_span() / spacing.y()) + 1;
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const std::size_t size_k = std::ceil(bbox.z_span() / spacing.z()) + 1;
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const typename GeomTraits::Vector_3 offset(bbox.xmin(), bbox.ymin(), bbox.zmin());
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const Topology topo = std::make_shared<Topology::element_type>(size_i, size_j, size_k);
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const Geometry geom = std::make_shared<Geometry::element_type>(offset, spacing);
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const Point_function point_func = std::make_shared<Point_function::element_type>(point_function);
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const Function func = std::make_shared<Function::element_type>(geom, point_func);
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const Gradient grad = std::make_shared<Gradient::element_type>(gradient);
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return Domain(topo, geom, func, grad);
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}
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} // namespace Isosurfacing
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} // namespace CGAL
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#endif // CGAL_IMPLICIT_CARTESIAN_GRID_DOMAIN_H
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