From 67595c5307585d9a2280b6056c5c5399f1d61306 Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Mon, 16 Aug 2010 12:00:43 -0400
Subject: [PATCH] Apply constant offset to contact region in 'polynomial
 flatten' to avoid discontinuity

---
 hooke/plugin/vclamp.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hooke/plugin/vclamp.py b/hooke/plugin/vclamp.py
index 1115cde..770a224 100644
--- a/hooke/plugin/vclamp.py
+++ b/hooke/plugin/vclamp.py
@@ -638,7 +638,9 @@ Name of the flattening information in the `.info` dictionary.
             'degree':degree,
             'polynomial values':poly_values,
             }
-        out = def_data - mask*scipy.polyval(poly_values, dist_data)
+        out = (def_data
+               - numpy.invert(mask)*scipy.polyval(poly_values[-1:], dist_data)
+               - mask*scipy.polyval(poly_values, dist_data))
         self._set_column(hooke=hooke, params=params,
                          column_name='output deflection column',
                          values=out)
-- 
2.26.2