Sphere and cube C++ wrappers.

1 files changed, 0 insertions, 78 deletions

diff --git a/libdimension/sphere.c b/libdimension/sphere.c
deleted file mode 100644
index f6950dc..0000000
--- a/libdimension/sphere.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*************************************************************************
- * Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com>               *
- *                                                                       *
- * This file is part of The Dimension Library.                           *
- *                                                                       *
- * The Dimension Library 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.                       *
- *                                                                       *
- * The Dimension Library 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 "dimension.h"
-#include <stdlib.h> /* For malloc */
-#include <math.h>   /* For sqrt   */
-
-/* Sphere object callbacks */
-static dmnsn_array *dmnsn_sphere_intersections_fn(const dmnsn_object *sphere,
-                                                  dmnsn_line line);
-static int dmnsn_sphere_inside_fn(const dmnsn_object *sphere,
-                                  dmnsn_vector point);
-
-/* Allocate a new sphere */
-dmnsn_object *
-dmnsn_new_sphere()
-{
-  dmnsn_object *sphere = dmnsn_new_object();
-  if (sphere) {
-    sphere->intersections_fn = &dmnsn_sphere_intersections_fn;
-    sphere->inside_fn        = &dmnsn_sphere_inside_fn;
-  }
-  return sphere;
-}
-
-/* Free a sphere */
-void
-dmnsn_delete_sphere(dmnsn_object *sphere)
-{
-  dmnsn_delete_object(sphere);
-}
-
-/* Return a list of insersections of `line' with a sphere */
-static dmnsn_array *
-dmnsn_sphere_intersections_fn(const dmnsn_object *sphere, dmnsn_line line)
-{
-  double a, b, c, t[2];
-  dmnsn_array *array = dmnsn_new_array(sizeof(double));
-
-  /* Solve (x0 + nx*t)^2 + (y0 + ny*t)^2 + (z0 + nz*t)^2 == 1 */
-
-  a = line.n.x*line.n.x + line.n.y*line.n.y + line.n.z*line.n.z;
-  b = 2.0*(line.n.x*line.x0.x + line.n.y*line.x0.y + line.n.z*line.x0.z);
-  c = line.x0.x*line.x0.x + line.x0.y*line.x0.y + line.x0.z*line.x0.z - 1.0;
-
-  if (b*b - 4.0*a*c >= 0) {
-    t[0] = (-b + sqrt(b*b - 4.0*a*c))/(2*a);
-    t[1] = (-b - sqrt(b*b - 4.0*a*c))/(2*a);
-    dmnsn_array_set(array, 0, &t[0]);
-    dmnsn_array_set(array, 1, &t[1]);
-  }
-
-  return array;
-}
-
-/* Return whether a point is inside a sphere (x**2 + y**2 + z**2 < 1.0) */
-static int
-dmnsn_sphere_inside_fn(const dmnsn_object *sphere, dmnsn_vector point)
-{
-  return point.x*point.x + point.y*point.y + point.z*point.z < 1.0;
-}