text: /*
   * RTQL8, Copyright (c) 2011, Georgia Tech Research Corporation
   * All rights reserved.
   *
   * Author(s): Sumit Jain <sumit@cc.gatech.edu>, Yuting Ye <yuting.ye@gmail.com>
   *
   * Geoorgia Tech Graphics Lab
   *
   * This file is provided under the following "BSD-style" License:
   *   Redistribution and use in source and binary forms, with or
   *   without modification, are permitted provided that the following
   *   conditions are met:
   *   * Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   *   * Redistributions in binary form must reproduce the above
   *     copyright notice, this list of conditions and the following
   *     disclaimer in the documentation and/or other materials provided
   *     with the distribution.
   *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
   *   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
   *   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   *   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   *   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
   *   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   *   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   *   AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   *   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   *   ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   *   POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef YUI_GLFUNCS_H
  #define YUI_GLFUNCS_H
  
  #include <Eigen/Eigen>
  
  namespace yui {
      void drawStringOnScreen(float x, float y, const std::string& s);
      void drawArrow3D(const Eigen::Vector3d& pt, const Eigen::Vector3d& dir, const double length, const double thickness, const double arrowThickness=-1);
      void drawArrow2D(const Eigen::Vector2d& pt, const Eigen::Vector2d& vec, double thickness);
      void drawProgressBar(int currFrame, int totalFrame);
      bool screenShot(int w, int h, char *fname, bool _antialias=false);
  } // namespace yui
  
  #endif  //YUI_GLFUNCS_H
  