# HG changeset patch
# User Markus Meisinger <chloros2@gmx.de>
# Date 1582873174 -3600
# Node ID 4f1d1b1d4afc11999cd9ea3fa3e1153e02a22179
# Parent  992a7a4f147694c074f2e8841edb2aafdad52c58
NEWS: Add a note about ostreamtube/streamtube (bug #57471).

diff -r 992a7a4f1476 -r 4f1d1b1d4afc NEWS
--- a/NEWS	Wed Feb 26 13:28:07 2020 -0500
+++ b/NEWS	Fri Feb 28 07:59:34 2020 +0100
@@ -158,6 +158,12 @@
   outputs) as well as the orientation of all outputs to match Matlab
   releases prior to R2012b.
 
+- The function `streamtube` is Matlab compatible and plots tubes along
+  streamlines which are scaled by the vector field divergence. The
+  Octave-only extension `ostreamtube` can be used to visualize the flow
+  expansion and contraction of the vector field due to the local
+  crossflow divergence.
+
 - The interpreter now supports handles to nested functions.
 
 - The graphics properties `"LineWidth"` and `"MarkerSize"` are now