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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/>.
*
***********************************************************************/
#include "center.hpp"
#include <geometry/data/matrix4.hpp>
namespace sight::module::filter::mesh
{
//------------------------------------------------------------------------------
center::center() :
filter(m_signals)
{
}
//------------------------------------------------------------------------------
void center::configuring()
{
}
//------------------------------------------------------------------------------
void center::starting()
{
}
//------------------------------------------------------------------------------
void center::updating()
{
const auto mesh = m_mesh.lock();
SIGHT_ASSERT("Missing mesh", mesh);
auto matrix = m_transform.lock();
SIGHT_ASSERT("Missing matrix", matrix);
// Reset to identity
geometry::data::identity(*matrix);
const auto bbox = mesh->get_bounding_box();
// Update the output matrix: keep identity orientation, set translation to center
matrix->set_position(
{(bbox.max[0] + bbox.min[0]) * 0.5,
(bbox.max[1] + bbox.min[1]) * 0.5,
(bbox.max[2] + bbox.min[2]) * 0.5
});
matrix->async_emit(data::signals::MODIFIED);
this->async_emit(signals::COMPUTED);
}
//------------------------------------------------------------------------------
void center::stopping()
{
}
//------------------------------------------------------------------------------
service::connections_t center::auto_connections() const
{
return {{m_mesh, data::mesh::MODIFIED_SIG, service::slots::UPDATE}};
}
//------------------------------------------------------------------------------
} // namespace sight::module::filter::mesh
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