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#!BPY
"""
Name: 'Clean Animation Curves'
Blender: 249
Group: 'Animation'
Tooltip: 'Remove unused keyframes for ipo curves'
"""
# ***** BEGIN GPL LICENSE BLOCK *****
#
# Copyright (C) 2008-2009: Blender Foundation
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# --------------------------------------------------------------------------
import bpy
from Blender import IpoCurve, Draw, Window
def clean_ipos(ipos):
eul = 0.001
def isflat(vec):
prev_y = vec[0][1]
mid_y = vec[1][1]
next_y = vec[2][1]
# flat status for prev and next
return abs(mid_y-prev_y) < eul, abs(mid_y-next_y) < eul
X=0
Y=1
PREV=0
MID=1
NEXT=2
LEFT = 0
RIGHT = 1
TOT = 0
TOTBEZ = 0
# for ipo in bpy.data.ipos:
for ipo in ipos:
if ipo.lib:
continue
# print ipo
for icu in ipo:
interp = icu.interpolation
extend = icu.extend
bezierPoints = icu.bezierPoints
bezierVecs = [bez.vec for bez in bezierPoints]
l = len(bezierPoints)
TOTBEZ += l
# our aim is to simplify this ipo as much as possible!
if interp == IpoCurve.InterpTypes.BEZIER or interp == interp == IpoCurve.InterpTypes.LINEAR:
#print "Not yet supported"
if interp == IpoCurve.InterpTypes.BEZIER:
flats = [isflat(bez) for bez in bezierVecs]
else:
# A bit of a waste but fake the locations for these so they will always be flats
# IS better then too much duplicate code.
flats = [(True, True)] * l
for v in bezierVecs:
v[PREV][Y] = v[NEXT][Y] = v[MID][Y]
# remove middle points
if l>2:
done_nothing = False
while not done_nothing and len(bezierVecs) > 2:
done_nothing = True
i = l-2
while i > 0:
#print i
#print i, len(bezierVecs)
if flats[i]==(True,True) and flats[i-1][RIGHT] and flats[i+1][LEFT]:
if abs(bezierVecs[i][MID][Y] - bezierVecs[i-1][MID][Y]) < eul and abs(bezierVecs[i][MID][Y] - bezierVecs[i+1][MID][Y]) < eul:
done_nothing = False
del flats[i]
del bezierVecs[i]
icu.delBezier(i)
TOT += 1
l-=1
i-=1
# remove endpoints
if extend == IpoCurve.ExtendTypes.CONST and len(bezierVecs) > 1:
#print l, len(bezierVecs)
# start
while l > 2 and (flats[0][RIGHT] and flats[1][LEFT] and (abs(bezierVecs[0][MID][Y] - bezierVecs[1][MID][Y]) < eul)):
print "\tremoving 1 point from start of the curve"
del flats[0]
del bezierVecs[0]
icu.delBezier(0)
TOT += 1
l-=1
# End
while l > 2 and flats[-2][RIGHT] and flats[-1][LEFT] and (abs(bezierVecs[-2][MID][Y] - bezierVecs[-1][MID][Y]) < eul):
print "\tremoving 1 point from end of the curve", l
del flats[l-1]
del bezierVecs[l-1]
icu.delBezier(l-1)
TOT += 1
l-=1
if l==2:
if isflat( bezierVecs[0] )[RIGHT] and isflat( bezierVecs[1] )[LEFT] and abs(bezierVecs[0][MID][Y] - bezierVecs[1][MID][Y]) < eul:
# remove the second point
print "\tremoving 1 point from 2 point bez curve"
# remove the second point
del flats[1]
del bezierVecs[1]
icu.delBezier(1)
TOT+=1
l-=1
# Change to linear for faster evaluation
'''
if l==1:
print 'Linear'
icu.interpolation = IpoCurve.InterpTypes.LINEAR
'''
if interp== IpoCurve.InterpTypes.CONST:
print "Not yet supported"
print 'total', TOT, TOTBEZ
return TOT, TOTBEZ
def main():
ret = Draw.PupMenu('Clean Selected Objects Ipos%t|Object IPO%x1|Object Action%x2|%l|All IPOs (be careful!)%x3')
sce = bpy.data.scenes.active
ipos = []
if ret == 3:
ipos.extend(list(bpy.data.ipos))
else:
for ob in sce.objects.context:
if ret == 1:
ipo = ob.ipo
if ipo:
ipos.append(ipo)
elif ret == 2:
action = ob.action
if action:
ipos.extend([ipo for ipo in action.getAllChannelIpos().values() if ipo])
if not ipos:
Draw.PupMenu('Error%t|No ipos found')
else:
total_removed, total = clean_ipos(ipos)
Draw.PupMenu('Done!%t|Removed ' + str(total_removed) + ' of ' + str(total) + ' points')
Window.RedrawAll()
if __name__ == '__main__':
main()
|
