controler-scene-transformation.cc

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/*
 * lib-controler : Un contrôleur générique de scène 3D.
 * Copyright (C) 2004, Moka Team, Université de Poitiers, Laboratoire SIC
 *               http://www.sic.sp2mi.univ-poitiers.fr/
 * Copyright (C) 2009, Guillaume Damiand, CNRS, LIRIS,
 *               guillaume.damiand@liris.cnrs.fr, http://liris.cnrs.fr/
 *
 * This file is part of lib-controler
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

//******************************************************************************
#include "controler.hh"
#include "view-precompile.hh"
//******************************************************************************
void CControler::modeSceneTranslationOperationMove()
{
  CViewPrecompile * view = FViews[FCurrentViewId];
  CParameterAimedPosition & aimed = view->getAimedPosition();

  GLfloat vect[3];

  view->unproject(FFirstX, FFirstY, FFirst3D);
  view->unproject(FLastX , FLastY , vect);

  for (int i=0; i<3; ++i)
    {
      vect[i] -= FFirst3D[i];
      aimed.setLookAt(i, FMemoAimedPosition.getLookAt(i) - vect[i]);
    }
}
//******************************************************************************
void CControler::modeSceneRotationOperationMove()
{
  CParameterEyePosition & eye = FViews[FCurrentViewId]->getEyePosition();

  eye.setRotationAlpha(FMemoEyePosition.getRotationAlpha() + 0.4 * FDeltaX);
  eye.setRotationBeta (FMemoEyePosition.getRotationBeta () - 0.4 * FDeltaY);
}
//******************************************************************************
void CControler::modeSceneScaleOperationMove()
{
  CParameterEyePosition & eye = FViews[FCurrentViewId]->getEyePosition();

  eye.setDistance(FMemoEyePosition.getDistance() * exp(0.01 * -FDeltaY));
}
//******************************************************************************
void CControler::modeSceneTransformationOperationStop()
{
}
//******************************************************************************