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/************************************************************************
*
* Copyright (C) 2025 IRCAD France
*
* This file is part of Sight.
*
* Sight 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.
*
* Sight 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 Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#pragma once
#include <data/matrix4.hpp>
#include <data/mesh.hpp>
#include <service/filter.hpp>
namespace sight::module::filter::mesh
{
/**
* @brief Service computing the center of the axis-aligned bounding box of a mesh.
* Outputs a transform containing a translation from world origin to the bbox center.
*
* @section Signals Signals
* - \b computed() : Signal sent after computing center.
*
* @section XML XML Configuration
* @code{.xml}
<service type="sight::module::filter::mesh::center">
<in key="mesh" uid="..." />
<inout key="transform" uid="..." />
</service>
@endcode
*
* @subsection Input Input
* - \b mesh [sight::data::mesh]: Input mesh from which the bbox center will be computed.
*
* @subsection In-Out In-Out
* - \b transform [sight::data::matrix4]: Will be reset to identity then contain translation
* from world origin (0,0,0) to the mesh axis-aligned bounding box center (in the mesh coordinates).
*/
class center : public service::filter
{
public:
SIGHT_DECLARE_SERVICE(center, service::filter);
center();
~center() override = default;
protected:
void configuring() override;
void starting() override;
void updating() override;
void stopping() override;
connections_t auto_connections() const override;
private:
sight::data::ptr<sight::data::mesh, sight::data::access::inout> m_mesh {this, "mesh"};
sight::data::ptr<sight::data::matrix4, sight::data::access::inout> m_transform {this, "transform"};
};
} // namespace sight::module::filter::mesh
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