.. _program_listing_file_include_MechanicalLayer.h: Program Listing for File MechanicalLayer.h ========================================== |exhale_lsh| :ref:`Return to documentation for file ` (``include/MechanicalLayer.h``) .. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS .. code-block:: cpp /* Copyright 2025 Institute of Light and Matter, CNRS UMR 5306, University Claude Bernard Lyon 1 Contributors: Oscar DUFOUR, Maxime STAPELLE, Alexandre NICOLAS This software is a computer program designed to generate a realistic crowd from anthropometric data and simulate the mechanical interactions that occur within it and with obstacles. This software is governed by the CeCILL-B license under French law and abiding by the rules of distribution of free software. You can use, modify and/ or redistribute the software under the terms of the CeCILL-B license as circulated by CEA, CNRS and INRIA at the following URL "http://www.cecill.info". As a counterpart to the access to the source code and rights to copy, modify and redistribute granted by the license, users are provided only with a limited warranty and the software's author, the holder of the economic rights, and the successive licensors have only limited liability. In this respect, the user's attention is drawn to the risks associated with loading, using, modifying and/or developing or reproducing the software by the user in light of its specific status of free software, that may mean that it is complicated to manipulate, and that also therefore means that it is reserved for developers and experienced professionals having in-depth computer knowledge. Users are therefore encouraged to load and test the software's suitability as regards their requirements in conditions enabling the security of their systems and/or data to be ensured and, more generally, to use and operate it in the same conditions as regards security. The fact that you are presently reading this means that you have had knowledge of the CeCILL-B license and that you accept its terms. */ #ifndef SRC_MECHANICAL_LAYER_INCLUDE_MECHANICALLAYER_H_ #define SRC_MECHANICAL_LAYER_INCLUDE_MECHANICALLAYER_H_ #include "Agent.h" #include "Global.h" // Helper list to make indices explicit #if !defined(DOXYGEN_SHOULD_SKIP_THIS) enum __attribute__((__packed__)) interactionsOutput_e { SLIP = 0, FORCE_ORTHO = 1, FORCE_TAN = 2, }; #endif // DOXYGEN_SHOULD_SKIP_THIS struct MechanicalLayer { private: unsigned nb_active_agents; // Number of mechanically active agens unsigned nb_active_shapes; // Number of pedestrians (each pedestrian is a collection of active agents) std::vector vgn; // Velocity of the center of mass (CM) of each pedestrian at t std::vector vgnp1; // Velocity of the CM of each pedestrian at t+dt std::vector rgcomp; // Initial positions of all the components of the pedestrians std::vector rgn; // Positions of the CM of each pedestrian at t std::vector rgnp1; // Positions of the CM of each pedestrian at t+dt std::vector delta; // Difference between position of the CM of each component and // the CM of their associated pedestrian std::vector thetn; // Orientation wrt x-axis at t std::vector thetnp1; // Orientation wrt x-axis at t+dt std::vector wn; // Angular velocity at t std::vector wnp1; // Angular velocity at t+dt std::vector wdesired; // Desired orientation wrt x-axis // Forces have the dimension of an acceleration std::vector Fp; // Propelling force v_des/tau_mech std::vector Forthon; // Orthogonal force (hertz) wrt contact surface at time t std::vector Ftn; // Tangential force wrt contact surface at time t std::vector taun; // Torque at time t (moment projected on z-axis) expressed at the CM std::vector> neighbours; std::vector active_shapeIDagent; // Pedestrian id of each shape std::vector active_shapeIDshape_crowd; // Shape id of each pedestrian std::vector radius; // Radius off all shapes of actives agents std::vector size_agents; std::map agentIds; std::vector agentActiveIds; std::vector> neighbours_shape; std::vector agentIDshape; std::vector masses; std::vector mois; std::vector damping; // Tangential relative displacement when in contact std::map, double2> slip; std::map, double2> slip_wall; // For output purposes: the following variables will contain: // - a copy of slip // - fortho from shape to shape // - ft from shape to shape std::map, std::array> interactionsOutput; std::map, std::array> interactionsOutputWall; std::tuple get_interactions(unsigned cpt_shape, bool AtTimen); void loop(); // AgentInteractions is an input and output file (ie "dynamic") of this process int readInteractionsInputFile(const std::string& interactionsFile); std::pair existsContacts(); // Do contacts exist? void generateInteractionsOutputFile(const std::string& interactionsFile, const std::pair& exists); public: explicit MechanicalLayer(std::list& mech_active_agents); ~MechanicalLayer(); }; #endif // SRC_MECHANICAL_LAYER_INCLUDE_MECHANICALLAYER_H_"