/usr/include/tachyon/cylinder.h is in libtachyon-dev 0.99~b2+dfsg-0.4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | /*
* cylinder.h - This file contains the defines for cylinders etc.
*
* $Id: cylinder.h,v 1.11 2011/02/05 08:10:11 johns Exp $
*/
object * newcylinder(void *, vector, vector, flt);
object * newfcylinder(void *, vector, vector, flt);
#ifdef CYLINDER_PRIVATE
/**
* Types for cylinder objects
*/
typedef struct {
RT_OBJECT_HEAD
vector ctr; /**< starting endpoint of cylinder */
vector axis; /**< cylinder axis */
flt rad;
} cylinder;
static void cylinder_intersect(const cylinder *, ray *);
static void fcylinder_intersect(const cylinder *, ray *);
static int cylinder_bbox(void * obj, vector * min, vector * max);
static int fcylinder_bbox(void * obj, vector * min, vector * max);
static void cylinder_normal(const cylinder *, const vector *, const ray *, vector *);
#endif
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