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/************************************************************************
*
* Copyright (C) 2022-2025 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 "get_mesh.hpp"
#include <regex>
namespace sight::module::data
{
//------------------------------------------------------------------------------
void get_mesh::configuring()
{
service::config_t config = this->get_config();
const config_t config_out = config.get_child("out");
const auto key_cfg = config_out.equal_range("key");
size_t output_var_index = 0;
// All the configuration is parsed
for(auto it_cfg = key_cfg.first ; it_cfg != key_cfg.second ; ++it_cfg, ++output_var_index)
{
// A configuration can be a constraint either on the index or on the type
auto type_cfg = it_cfg->second.get_child_optional("<xmlattr>.type");
auto index_cfg = it_cfg->second.get_child_optional("<xmlattr>.index");
if(index_cfg)
{
// There is a constraint on the index.
// The index of the mesh required from the reconstructionDB and the index of the output var are stored.
m_index_configurations.push_back(
{
index_cfg->get_value<std::size_t>(),
output_var_index
});
}
else if(type_cfg)
{
// There is a constraint on the index.
// The type, the name matching (if there is one) and the index of the output var are stored
const auto matching_cfg = it_cfg->second.get_child_optional("<xmlattr>.matching");
m_type_configuration.push_back(
{
type_cfg->get_value<std::string>(),
matching_cfg ? matching_cfg->get<std::string>("") : "",
output_var_index
});
}
}
}
//------------------------------------------------------------------------------
void get_mesh::starting()
{
}
//-----------------------------------------------------------------------------
void get_mesh::updating()
{
//Get the reconstruction database from which the mesh are extracted
auto model_series = m_model_series.lock();
if(model_series == nullptr)
{
SIGHT_THROW_EXCEPTION(sight::data::exception("Missing input models series"));
}
const sight::data::model_series::reconstruction_vector_t recs = model_series->get_reconstruction_db();
// do all index requests
for(index_config index_cfg : m_index_configurations)
{
// Get the mesh from the reconstructionDB which is located at the position stored in
// indexCfg.inputIndex
if(index_cfg.input_index >= recs.size())
{
SIGHT_THROW_EXCEPTION(sight::data::exception("Mesh index is out of bound"));
}
const auto mesh = model_series->get_reconstruction_db()[index_cfg.input_index]->get_mesh();
// put the mesh in the appropriate output variable
m_mesh[index_cfg.output_index] = mesh;
}
// do all type requests
for(const type_config& type_cfg : m_type_configuration)
{
//go through the whole reconstructionDB, and check if a mesh which respects the type and regex is found.
bool found = false;
for(const auto& reconstruction : model_series->get_reconstruction_db())
{
// check if the type of the reconstruction corresponds to the requested one.
if(reconstruction->get_structure_type() == type_cfg.type)
{
// the reconstruction has the right type. Check if the name match the regex, if there is one.
if(type_cfg.matching.empty()
|| std::regex_match(reconstruction->get_organ_name(), std::regex(type_cfg.matching)))
{
//the type and name are appropriate. It is the mesh required.
auto mesh = reconstruction->get_mesh();
// put the mesh in the appropriate output variable.
m_mesh[type_cfg.output_index] = mesh;
//When the appropriate mesh is found for a given type-regex, there is no need to go further in the
// reconstructionDB.
found = true;
break;
}
}
}
// if the whole reconstructionDB has been parsed, and no mesh corresponds to the given type/name, throw
// exception.
if(!found)
{
SIGHT_THROW_EXCEPTION(sight::data::exception("Type of mesh does not match"));
}
}
}
//-----------------------------------------------------------------------------
void get_mesh::stopping()
{
}
//-----------------------------------------------------------------------------
} // namespace sight::module::data
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