text: /* Siconos is a program dedicated to modeling, simulation and control
   * of non smooth dynamical systems.
   *
   * Copyright 2018 INRIA.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
  */
  
  #ifndef ProjectionOnDisk_H
  #define ProjectionOnDisk_H
  
  /*!\file projectionOnDisk.h
   * \brief functions to project on a cylinder
   */
  
  #include "SiconosConfig.h"
  
  #if defined(__cplusplus) && !defined(BUILD_AS_CPP)
  extern "C"
  {
  #endif
  
    /** projectionOnDisk Projection onto the positive Disk of radius R  \f$  \{ r,  0 \sqrt(r_1^2+r_2^2) \geq R \} \f$
    \param[in,out] r the vector to be projected
    \param[in] R the radius of the cone
    */
    void projectionOnDisk(double* r, double  R);
  
    /** projectionOnGeneralDisk Projection onto the positive Disk of radius R  \f$  \{ r, 0 \sqrt(r_1^2+r_1^2) \geq R \} \f$
    \param[in,out] r the vector to be projected
    \param[in] R the radius of the cone
    \param[in] dim dimension of the cylinder
    */
    void projectionOnGeneralDisk(double* r, double  R, int dim);
  
  #if defined(__cplusplus) && !defined(BUILD_AS_CPP)
  }
  #endif
  
  #endif
  