[python-dtcwt] 304/497: plotting: fix length of quiver key arrows

[Ghislain Vaillant]

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ghisvail-guest pushed a commit to branch debian/sid
in repository python-dtcwt.

commit cf4f7efc30c9421c0f8e4366a0c72ac391bedbda
Author: Rich Wareham <rjw57 at cam.ac.uk>
Date:   Fri Jan 31 15:59:28 2014 +0000

    plotting: fix length of quiver key arrows
    
    A speculative fix for #58 which fixes the plot on my (@rjw57) machine. I
    don't know if it is the *correct* fix though since I don't know what
    units the 'length' parameter has.
    
    Closes #58
---
 dtcwt/plotting.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dtcwt/plotting.py b/dtcwt/plotting.py
index 994aee2..ad97c51 100644
--- a/dtcwt/plotting.py
+++ b/dtcwt/plotting.py
@@ -63,7 +63,7 @@ def overlay_quiver_DTCWT(image, vectorField, level, offset):
         thiscolour = cmap(sb / float(vectorField.shape[2])) # Select colour for this subband
         hq = quiver(g2*(2**level) + offset*(2**level), g1*(2**level) + offset*(2**level), np.real(vectorField[:,:,sb]), \
         np.imag(vectorField[:,:,sb]), color=thiscolour, scale=scalefactor*2**level)
-        quiverkey(hq, image.shape[1]+75, 50 + sb*50, 200, "subband " + np.str(sb), coordinates='data', color=thiscolour)
+        quiverkey(hq, image.shape[1]+75, 50 + sb*50, 1, "subband " + np.str(sb), coordinates='data', color=thiscolour)
         hold(True)
 
     return hq

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