Movie fade - Revision history

Cchem: 2 revisions

2017-04-03T02:46:07Z

2 revisions

Speleo3: no table

2017-03-24T14:57:10Z

no table

Andwar: /* See Also */ referenced movie_color_fade

2014-06-10T13:10:41Z

Bell: 6 revisions

2014-06-09T14:21:53Z

6 revisions

Andwar: Added additional example (surface) with code and file

2014-06-06T11:25:03Z

Added additional example (surface) with code and file

Pyadmin: 1 revision

2014-03-28T02:16:20Z

1 revision

Speleo3: moved to github

2013-02-25T10:15:20Z

moved to github

Speleo3: fix imports

2013-02-24T21:06:46Z

fix imports

Speleo3: remove empty filename label

2013-02-24T20:55:21Z

remove empty filename label

New page

{{Infobox script-repo
|type = Python Module
|author = [[User:Inchoate|Jason Vertrees]]
|license = [http://www.opensource.org/licenses/BSD-2-Clause BSD]
}}

= Overview =
This script will help fade in and out settings in a movie. Just specify the setting, it's initial value at an initial frame and it's ending value and frame. For example, to fade in sticks from fully transparent to fully opaque across 60 frames do,

<source lang="python">
movie_fade stick_transparency, 1, 1., 60, 0.
</source>

For help, type,
<source lang="python">
# syntax

movie_fade ?

# usage

help movie_fade
</source>

<source lang="python">
import math
#
# Movie fades work great, when there is only one mdo command
# per frame. mdo does NOT save a stack of commands per frame
# as one might thing it just consistently updates itself.
#
def mStore(frame, theCommand):
print "Storing %s into frame %d" % (theCommand, frame)
if len(stored.mdoCache)<frame:
diff = frame - len(stored.mdoCache)
for x in range(diff): stored.mdoCache.append("")
stored.mdoCache[frame-1] = stored.mdoCache[frame-1] + ";" + theCommand

def mRunCache():
for f in range(len(stored.mdoCache)):
cmd.mdo(f+1, stored.mdoCache[f])

def mClearCache():
for f in range(len(stored.mdoCache)):
cmd.mdo(f+1, "")
stored.mdoCache = []

def movie_fade( setting, startFrame, startVal, endFrame, endVal, smoothing="linear"):
"""fades and smooth transitions"""

try:
from pymol import stored
stored.mdoCache
except AttributeError:
print "mdoCache not found, creating new."
stored.mdoCache = []

startFrame = float(startFrame)
endFrame = float(endFrame)
startVal = float(startVal)
endVal = float(endVal)
frameRange = math.fabs(endFrame-startFrame)

# boundary conditions to control the stricly <
# aspect of the range function
if startFrame<endFrame: endFrame = endFrame + 1.
if startFrame>endFrame: endFrame = endFrame - 1.

for fr in range(int(startFrame), int(endFrame)):
fracV2 = float((fr-startFrame)/frameRange)
fracV1 = 1.0 - fracV2

totalIntensity = fracV1 * startVal + fracV2 * endVal
if len(string.split(setting,','))==1:
mStore(fr, "set %s, %1.3f, quiet=1" % (setting, totalIntensity))
else:
(s1,s2) = string.split(setting,',')
mStore(fr, "set %s, %1.3f, %s, quiet=0" % (s1.strip('"'), totalIntensity, s2.strip('"')))
mRunCache()
cmd.extend("movie_fade", movie_fade)
cmd.extend("movie_fade_clear_cache", mClearCache)
</source>

[[Category:Script_Library]]
[[Category:UI_Scripts]]

@@ Line 31: / Line 31: @@
 </source>
 <source lang="python">
 import movie_fade
@@ Line 60: / Line 57: @@
 movie_fade transparency,61, 1, 120, 0, 1hpv
 </source>
 == See Also ==

@@ Line 69: / Line 69: @@
 * [[mappend]]
 * [[set]]
 [[Category:Script_Library]]
 [[Category:UI_Scripts]]

@@ Line 9: / Line 9: @@
 == Usage ==
   movie_fade setting, startFrame, startVal, endFrame, endVal [, selection ]
 == Examples ==
 To fade in sticks from fully transparent to fully opaque across 60 frames do:
@@ Line 32: / Line 30: @@
 movie_fade transparency, 41, 1., 80, 0.
 </source>
 == See Also ==

← Older revision	Revision as of 02:46, 3 April 2017
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← Older revision	Revision as of 14:21, 9 June 2014
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@@ Line 1: / Line 1: @@
 {{Infobox script-repo
 |type      = Python Module
-|author    = [[User:Inchoate|Jason Vertrees]]
+|filename  = movie_fade.py
-|license   = [http://www.opensource.org/licenses/BSD-2-Clause BSD]
+|author    = [[User:Inchoate|Jason Vertrees]] and [[User:Speleo3|Thomas Holder]]
 }}
-= Overview =
+This script will help fade in and out settings in a movie. Just specify the setting, it's initial value at an initial frame and it's ending value and frame.
-<source lang="python">
+== Usage ==
-For help, type,
+ movie_fade setting, startFrame, startVal, endFrame, endVal [, selection ]
-movie_fade ?
+== Examples ==
-# usage
+To fade in sticks from fully transparent to fully opaque across 60 frames do:
-help movie_fade
+<source lang="python">
 </source>
 <source lang="python">
-from pymol import cmd, stored
+fetch 1rx1, async=0
-import string
+as cartoon
-import math
+show surface
+mset 1x80
-# Movie fades work great, when there is only one mdo command
+movie.roll
-# per frame.  mdo does NOT save a stack of commands per frame
+movie_fade transparency,  1, 0., 40, 1.
-# as one might thing it just consistently updates itself.
+movie_fade transparency, 41, 1., 80, 0.
+</source>
-def mRunCache():
+== See Also ==
-def mClearCache():
+* [[mdo]]
-	for f in range(len(stored.mdoCache)):
+* [[mappend]]
-		cmd.mdo(f+1, "")
+* [[set]]
 [[Category:Script_Library]]
 [[Category:UI_Scripts]]