From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 31 Dec 2017 01:28:45 +0000 (+0000)
Subject: helixish: seems to be able to solve
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=e3461271edb53f00d9204aac3a67a219024670f1;p=moebius3.git

helixish: seems to be able to solve

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---

diff --git a/helixish.py b/helixish.py
index 51a681f..77c311b 100644
--- a/helixish.py
+++ b/helixish.py
@@ -208,7 +208,7 @@ class HelixishCurve():
       vdbg().arrow(findcurve_basis[0:3,3], findcurve_basis[0:3,ax])
 
     q_findcurve = augmatmultiply(findcurve_into, q)
-    dq_findcurve = augmatmultiply(findcurve_into, dq, augwith=0)
+    dq_findcurve = -augmatmultiply(findcurve_into, dq, augwith=0)
 
     findcurve_target = np.hstack((q_findcurve, dq_findcurve))
     findcurve_start = (sqrt(start_s), sqrt(start_t), start_la,