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authorTavian Barnes <tavianator@gmail.com>2010-06-20 08:09:10 -0400
committerTavian Barnes <tavianator@gmail.com>2010-06-20 08:09:10 -0400
commite7a4812aa556f2c3159a6ca772e6c1f61de18e07 (patch)
tree4d737f393e78471bfac45d0187e3739fc4bba754 /libdimension/dimension
parentdb09a6bc5bb5da674abf7b5f8874a57ef2cf4dfb (diff)
downloaddimension-e7a4812aa556f2c3159a6ca772e6c1f61de18e07.tar.xz
Add some macros to make printf()-ing geometric types easier.
Diffstat (limited to 'libdimension/dimension')
-rw-r--r--libdimension/dimension/geometry.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/libdimension/dimension/geometry.h b/libdimension/dimension/geometry.h
index 98fc913..d55126d 100644
--- a/libdimension/dimension/geometry.h
+++ b/libdimension/dimension/geometry.h
@@ -31,17 +31,35 @@
/* Vector and matrix types */
typedef struct dmnsn_vector { double x, y, z; } dmnsn_vector;
+#define DMNSN_VECTOR_FORMAT "<%g, %g, %g>"
+#define DMNSN_VECTOR_PRINTF(v) (v).x, (v).y, (v).z
typedef struct dmnsn_matrix { double n[4][4]; } dmnsn_matrix;
+#define DMNSN_MATRIX_FORMAT \
+ "[%g\t%g\t%g\t%g]\n" \
+ "[%g\t%g\t%g\t%g]\n" \
+ "[%g\t%g\t%g\t%g]\n" \
+ "[%g\t%g\t%g\t%g]"
+#define DMNSN_MATRIX_PRINTF(m) \
+ (m).n[0][0], (m).n[0][1], (m).n[0][2], (m).n[0][3], \
+ (m).n[1][0], (m).n[1][1], (m).n[1][2], (m).n[1][3], \
+ (m).n[2][0], (m).n[2][1], (m).n[2][2], (m).n[2][3], \
+ (m).n[3][0], (m).n[3][1], (m).n[3][2], (m).n[3][3]
/* A line, or ray */
typedef struct dmnsn_line {
dmnsn_vector x0; /* A point on the line */
dmnsn_vector n; /* A normal vector; the direction of the line */
} dmnsn_line;
+#define DMNSN_LINE_FORMAT "(<%g, %g, %g> + t*<%g, %g, %g>)"
+#define DMNSN_LINE_PRINTF(l) \
+ DMNSN_VECTOR_PRINTF((l).x0), DMNSN_VECTOR_PRINTF((l).n)
/* A bounding box */
typedef struct dmnsn_bounding_box { dmnsn_vector min, max; } dmnsn_bounding_box;
+#define DMNSN_BOUNDING_BOX_FORMAT "(<%g, %g, %g> ==> <%g, %g, %g>)"
+#define DMNSN_BOUNDING_BOX_PRINTF(box) \
+ DMNSN_VECTOR_PRINTF((box).min), DMNSN_VECTOR_PRINTF((box).max)
/* Constants */