vpViewio.cpp

/****************************************************************************
 *
 * This file is part of the ViSP software.
 * Copyright (C) 2005 - 2017 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ViSP with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * See http://visp.inria.fr for more information.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at visp@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Description:
 * Le module "viewio.c" contient les procedures d'entree/sortie
 * des types definis dans le module "view.h".
 * Les entrees non specifiees sont effectuees
 * sur le fichier source de "lex.c".
 * Pour les mots cles des "fprintf_..." voir "token.c".
 *
 * Authors:
 * Jean-Luc CORRE
 *
 *****************************************************************************/

#include <visp3/core/vpConfig.h>

#ifndef DOXYGEN_SHOULD_SKIP_THIS

#include    <stdio.h>

#include "vpMyio.h"
#include "vpArit.h"
#include "vpViewio.h"
#include "vpToken.h"
#include "vpLex.h"
#include "vpSkipio.h"


/*
 * La procedure "fscanf_Remove" lit en ascii les parametres d'elimination
 * des faces.
 * Entree :
 * bp       Parametres a lire.
 */
void fscanf_Remove (Byte *bp)
{
    switch (lex ()) {
    case T_NONE : *bp  = IS_INSIDE; break; 
    case T_ABOVE    : *bp |= IS_ABOVE;  break;
    case T_BACK : *bp |= IS_BACK;   break;
    case T_BELOW    : *bp |= IS_BELOW;  break;
    case T_FRONT    : *bp |= IS_FRONT;  break;
    case T_LEFT : *bp |= IS_LEFT;   break;
    case T_RIGHT    : *bp |= IS_RIGHT;  break;
    default :
      lexerr ("start", "remove: keyword \"none|above|back|below|front|left|right\" expected");
        break;
    }
}

/*
 * La procedure "fscanf_View_parameters" lit en ascii les parametres
 * de visualisation.
 * Entree :
 * vp       Parametres de visualisation a lire.
 */
void fscanf_View_parameters (View_parameters *vp)
{
    /* Lecture du type de projection lors de la prise de vue.   */

    skip_keyword (T_TYPE, "view: keyword \"type\" expected");
    switch (lex ()) {
    case T_PARALLEL :
        vp->type = PARALLEL;
        break;
    case T_PERSPECTIVE :
        vp->type = PERSPECTIVE;
        break;
    default :
      lexerr ("start", "view_type: keyword \"parallel|perspective\" expected");
        break;
    }

    /* Lecture du centre de projection (oeil) de la prise de vue.   */

    skip_keyword (T_COP, "view: keyword \"cop\" expected");
    pusherr ("view_cop: ");
    fscanf_Point3f (&vp->cop);
    poperr ();

    /* Lecture du point de reference (cible) a la prise de vue. */

    skip_keyword (T_VRP, "view: keyword \"vrp\" expected");
    pusherr ("view_vrp: ");
    fscanf_Point3f (&vp->vrp);
    poperr ();

    /* Lecture de la direction normale au plan de projection.   */

    skip_keyword (T_VPN, "view: keyword \"vpn\" expected");
    pusherr ("view_vpn: ");
    fscanf_Vector (&vp->vpn);
    poperr ();

    /* Lecture de la direction indiquant le haut de la projection.  */

    skip_keyword (T_VUP, "view: keyword \"vup\" expected");
    pusherr ("view_vup: ");
    fscanf_Vector (&vp->vup);
    poperr ();

    /* Lecture de la fenetre de projection de la prise de vue.  */

    skip_keyword (T_WINDOW, "view: keyword \"window\" expected");
    pusherr ("view_window_umin: ");
    fscanf_float (&vp->vwd.umin);
    popuperr ("view_window_umax: ");
    fscanf_float (&vp->vwd.umax);
    popuperr ("view_window_vmin: ");
    fscanf_float (&vp->vwd.vmin);
    popuperr ("view_window_vmax: ");
    fscanf_float (&vp->vwd.vmax);
    poperr ();

    /* Lecture des profondeurs de decoupage avant et arriere.   */

    skip_keyword (T_DEPTH, "view: keyword \"depth\" expected");
    pusherr ("view_depth_front: ");
    fscanf_float (&vp->depth.front);
    popuperr ("view_depth_back: ");
    fscanf_float (&vp->depth.back);
    poperr ();
}

#endif