From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 17 Dec 2017 16:05:24 +0000 (+0000)
Subject: visual: debug arrows better
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ian/git?a=commitdiff_plain;h=4546840a589eb766878a8542d5b63cf548f9e6ec;p=moebius3.git

visual: debug arrows better

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

diff --git a/visual b/visual
index 667ce6a..1d1b2ce 100755
--- a/visual
+++ b/visual
@@ -22,6 +22,9 @@ class Visdebug(BaseVisdebug):
     ps = [ fn(t) for t in np.linspace(0,1,11) ]
     #dbg('Visdebug', ps)
     curve(pos = ps, color=colour)
+  def arrow(vd, p, d, **kw):
+    vd.line(p, p+d, **kw)
+    ring(pos=p, axis=d, radius=0.25, thickness=0.005, **kw)
   def crashing(vd, msg):
     print("CRASHING - VISDEBUG", msg, file=sys.stderr)
     rate(1E-8)