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- /*
- * (c) Copyright 1993, Silicon Graphics, Inc.
- * ALL RIGHTS RESERVED
- *
- * Permission to use, copy, modify, and distribute this software for
- * any purpose and without fee is hereby granted, provided that the above
- * copyright notice appear in all copies and that both the copyright notice
- * and this permission notice appear in supporting documentation, and that
- * the name of Silicon Graphics, Inc. not be used in advertising
- * or publicity pertaining to distribution of the software without specific,
- * written prior permission.
- *
- * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
- * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
- * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
- * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
- * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
- * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
- * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
- * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
- * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
- * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND
- * Use, duplication, or disclosure by the Government is subject to
- * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
- * (c)(1)(ii) of the Rights in Technical Data and Computer Software
- * clause at DFARS 252.227-7013 and/or in similar or successor
- * clauses in the FAR or the DOD or NASA FAR Supplement.
- * Unpublished-- rights reserved under the copyright laws of the
- * United States. Contractor/manufacturer is Silicon Graphics,
- * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
- *
- * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
- */
- #ifndef TELESCOPE_H
- #define TELESCOPE_H
-
- class Telescope {
- public:
- Telescope(GLfloat x = 0, GLfloat y = 0);
- ~Telescope();
-
- /* This draws the "outside" of the telescope - the fov and aspect are
- * needed since it is drawn in eye coordinates */
- void draw_setup(GLfloat fov, GLfloat aspect = 1.0, int perspective = 1);
- void draw_fake();
- void draw_body();
- void draw_takedown();
-
- /* This just draws the lens - usually it will be used to draw the lens
- * into the stencil buffer */
- void draw_lens();
-
- /* How finally to divide things as we're drawing */
- void set_divisions(int d);
- int get_divisions();
-
- /* This is the radius of the lens - the rest of the dimensions depend
- * upon it */
- void set_radius(GLfloat r);
- GLfloat get_radius();
-
- /* Positions are in eye coordinates and go from [0, 1] */
- GLfloat xpos, ypos;
- private:
- int divisions;
-
- GLfloat radius;
-
- GLUquadricObj *disk;
- GLUquadricObj *cylinder;
- };
-
- #endif
-
-