X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=flower%2Finclude%2Foffset.hh;h=a8c5987801069b01790b545b4a12db4c70923bfc;hb=5d84bfad4626892bcffd05adcced53c8a2329047;hp=cddec1fc00c7cb9acd4c85c7e52c572a3d1dc68c;hpb=d2762a4f1add2bb04d6fc34d3c7ae03eeb7d500f;p=lilypond.git

diff --git a/flower/include/offset.hh b/flower/include/offset.hh
index cddec1fc00..a8c5987801 100644
--- a/flower/include/offset.hh
+++ b/flower/include/offset.hh
@@ -111,7 +111,6 @@ public:
   Offset direction () const;
   Offset swapped () const;
 
-  Real arg () const;
   Real angle_degrees () const;
   Real length () const;
   bool is_sane () const;
@@ -124,8 +123,7 @@ IMPLEMENT_ARITHMETIC_OPERATOR (Offset, -);
 IMPLEMENT_ARITHMETIC_OPERATOR (Offset, *);
 
 Offset complex_multiply (Offset, Offset);
-Offset complex_divide (Offset, Offset);
-Offset complex_exp (Offset);
+Offset offset_directed (Real);
 
 inline Offset
 Offset::operator *= (Offset z2)
@@ -169,5 +167,13 @@ dot_product (Offset o1, Offset o2)
   return o1[X_AXIS] * o2[X_AXIS] + o1[Y_AXIS] * o2[Y_AXIS];
 }
 
+inline
+Real
+cross_product (Offset o1, Offset o2)
+{
+  return o1[X_AXIS] * o2[Y_AXIS] - o1[Y_AXIS] * o2[X_AXIS];
+}
+
+
 #endif /* OFFSET_HH */