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Diffstat (limited to 'source/blender/blenkernel/BKE_curve.h')
-rw-r--r--source/blender/blenkernel/BKE_curve.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/source/blender/blenkernel/BKE_curve.h b/source/blender/blenkernel/BKE_curve.h
index 60444675047..45d8193b16f 100644
--- a/source/blender/blenkernel/BKE_curve.h
+++ b/source/blender/blenkernel/BKE_curve.h
@@ -39,8 +39,8 @@ struct ListBase;
struct BezTriple;
struct BevList;
-#define KNOTSU(nu) ( (nu)->orderu+ (nu)->pntsu+ (nu->orderu-1)*((nu)->flagu & 1) )
-#define KNOTSV(nu) ( (nu)->orderv+ (nu)->pntsv+ (nu->orderv-1)*((nu)->flagv & 1) )
+#define KNOTSU(nu) ( (nu)->orderu+ (nu)->pntsu+ (nu->orderu-1)*((nu)->flagu & CU_CYCLIC) )
+#define KNOTSV(nu) ( (nu)->orderv+ (nu)->pntsv+ (nu->orderv-1)*((nu)->flagv & CU_CYCLIC) )
void unlink_curve( struct Curve *cu);
@@ -84,5 +84,12 @@ void switchdirectionNurb( struct Nurb *nu);
float (*curve_getVertexCos(struct Curve *cu, struct ListBase *lb, int *numVerts_r))[3];
void curve_applyVertexCos(struct Curve *cu, struct ListBase *lb, float (*vertexCos)[3]);
+/* nurb checks if they can be drawn, also clamp order func */
+int check_valid_nurb_u( struct Nurb *nu);
+int check_valid_nurb_v( struct Nurb *nu);
+
+int clamp_nurb_order_u( struct Nurb *nu);
+int clamp_nurb_order_v( struct Nurb *nu);
+
#endif