[Chimera-users] Center on surface at mouse accelerator
Daniel P Farrell
danpf at uw.edu
Wed Aug 30 11:44:06 PDT 2017
I found myself constantly needing to re-center on different regions of EM
density maps, and I was originally just dropping spheres on the surface,
centering on those, then deleting them. Finally I got sick of that and
wrote this. It will center the window on the surface of whatever surface
the mouse is currently overlaying.
I found this to be a very helpful addition when looking at large EM maps,
and was thinking other people might too, after using it for a while I feel
as though it could be part of trunk since I use it so much.
basically it would require the addition of this to standard_accelerators.py
... other accelerators..
('zx', 'Center view on surface where mouse is located',
... zx because it's close to where you rest your hands on the keyboard...
from chimera import selection, tkgui
hits = 
w = tkgui.app.graphics
x = w.winfo_pointerx() - w.winfo_rootx()
y = w.winfo_pointery() - w.winfo_rooty()
from Surface import surface_models
import VolumePath.tracer as tracer
hits.extend(tracer.surface_intercepts(x, y, surface_models()))
xyz, model = tracer.closest_hit(hits)
print('cofr %f,%f,%f' % (xyz,xyz,xyz))
chimera.runCommand('cofr %f,%f,%f' % (xyz,xyz,xyz))
chimera.viewer.camera.center = xyz
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