/
movie_color_fade.py
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movie_color_fade.py
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'''
movie_color_fade.py
Described at: http://www.pymolwiki.org/movie_color_fade
Version 1.0 (2014)
##################################################
Fades the color of representations in movies
#NB!: Defines and uses new color names using the selection name and frame numbers
##################################################
Plugin contributed by Andreas Warnecke
(andreas.warnecke@ki.se, 4ndreas.warneck3@gmail.com)
##################################################
VERSION NOTES:
1.0 2014 First release
'''
#-------------------------------------------------------------------------------
# IMPORT
from __future__ import print_function
from pymol import cmd
from pymol import stored
#-------------------------------------------------------------------------------
#-------------------------------------------------------------------------------
# MOVIE COLOR FADING
#-------------------------------------------------------------------------------
def movie_color_fade(
startframe='',
startcolor='red',
endframe='',
endcolor='green',
selection='all'
):
'''
DESCRIPTION
Fades the color of representations in movies
#NB!: Defines and uses new color names using the selection name and frame numbers
USE
movie_color_fade startframe='', startcolor=red, endframe='', endcolor=green, selection=all
#defaults indicated
PARAMETERS
startframe, endframe = beginning and end movie frame for fading
startcolor, endcolor = coloring at start and end
selection: target selection
NB! startframe and endframe can be omitted or set='' to assign current and last frame respectively
EXAMPLES
##### 1. #####
fetch 1hpv, async=0
as cartoon
orient
color yellow
mset 1x120
movie_color_fade 1, yellow, 60, blue
movie_color_fade 60, blue, 120, yellow
#####
##### 2. #####
#repeat command and specify 'selection' to change multiple colors
fetch 1hpv, async=0
as cartoon
orient
color white
mset 1x60
movie_color_fade auto,white,auto,skyblue,ss s
movie_color_fade auto,white,auto,red,ss h
movie_color_fade auto,white,auto,grey,ss l+""
#####
SEE ALSO
mdo, mappend, set, movie_fade
'''
selection = '(' + str(selection) + ')'
try:
startframe = int(startframe)
except:
startframe = int(cmd.get('frame'))
try:
endframe = int(endframe)
except:
endframe = int(cmd.count_frames())
if endframe == 0:
endframe = 1
if startframe == endframe:
print("start == end")
return False
if startframe > endframe:
startframe, endframe = endframe, startframe
startcolor, endcolor = endcolor, startcolor
# color RGBs
try:
startcolor = cmd.get_color_tuple(startcolor)
endcolor = cmd.get_color_tuple(endcolor)
diffcolor = [b - a for a, b in zip(startcolor, endcolor)]
except:
print("Input error - please provide regular colors")
return False
for frame in range(startframe, endframe + 1):
# calculate intermediates
frac = float(frame - startframe) / (endframe - startframe)
endcolor = [a * frac for a in diffcolor]
endcolor = list(map(sum, list(zip(startcolor, endcolor))))
colorname = selection + "_" + str(frame)
# define new color
cmd.set_color(colorname, endcolor)
cmd.mappend(frame, "/cmd.color(%s, %s)" % (repr(colorname), repr(selection)))
cmd.extend("movie_color_fade", movie_color_fade)
cmd.auto_arg[0]['movie_color_fade'] = [lambda: cmd.Shortcut(['auto', '1']), 'startframe=', ',']
cmd.auto_arg[1]['movie_color_fade'] = [lambda: cmd.Shortcut(['red', 'green', 'blue', 'yellow']), 'startcolor=', ',']
cmd.auto_arg[2]['movie_color_fade'] = [lambda: cmd.Shortcut(['auto']), 'endframe=', ',']
cmd.auto_arg[3]['movie_color_fade'] = [lambda: cmd.Shortcut(['red', 'green', 'blue', 'yellow']), 'endcolor= ... more see "help movie_color_fade"', ',']
#cmd.auto_arg[4]['movie_color_fade']=[lambda: cmd.Shortcut(['all']), 'selection=', '']
#-------------------------------------------------------------------------------
#-------------------------------------------------------------------------------