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root/Development/ray/src/common/disk2square.c

Comparing ray/src/common/disk2square.c (file contents):
Revision 3.2 by greg, Fri Feb 18 18:41:04 2011 UTC vs.
Revision 3.4 by greg, Thu Oct 23 18:19:14 2014 UTC

#	Line 11 | Line 11 | static const char RCSid[] = "$Id$";
11		* Modified interface slightly (G. Ward)
12		*/
13
14	+	#define _USE_MATH_DEFINES
15		#include <math.h>
16
17		/*
#	Line 69 | Line 70 | SDsquare2disk(double ds[2], double seedx, double seedy
70		phi = 0.;
71		}
72		}
73	<
73	>	r *= 0.9999999999999;        /* prophylactic against MS sin()/cos() impl. */
74		ds[0] = r * cos(phi);
75		ds[1] = r * sin(phi);
76
#	Line 101 | Line 102 | SDdisk2square(double sq[2], double diskx, double disky
102		a = -(phi - 3*M_PI/2) * b / (M_PI/4);
103		}
104
105	<	sq[0] = (a + 1) * 0.5;
106	<	sq[1] = (b + 1) * 0.5;
105	>	sq[0] = a*(0.5/0.9999999999999) + 0.5;
106	>	sq[1] = b*(0.5/0.9999999999999) + 0.5;
107		}

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