def _rock(mode, axis, first, last, period, pause, _self=cmd):
cmd = _self
n_frame = last - first + 1
angle = cmd.get_setting_float('sweep_angle')
if (period * 1.5) < pause:
n_cyc = int(round(pause / period))
frame_list = []
for cyc in range(n_cyc):
frame_list.extend([
(first + ((1 + 4 * cyc) * n_frame) / (4 * n_cyc)),
(first + ((3 + 4 * cyc) * n_frame) / (4 * n_cyc))
])
else:
frame_list = [first + n_frame / 4, first + (3 * n_frame) / 4]
if 1 or mode:
direction = 0
for frame in frame_list:
if not direction:
cmd.turn(axis, angle / 2.0)
cmd.mview("store", frame, power=-1, freeze=1)
direction = -1
else:
cmd.turn(axis, direction * angle)
cmd.mview("store", frame, power=-1, freeze=1)
direction = -direction
cmd.turn(axis, direction * angle / 2.0)
cmd.mview("store", last, power=-1, freeze=1)
cmd.mview("interpolate", first, last)
def _rock(mode,axis,first,last,period,pause,_self=cmd):
cmd = _self
n_frame = last - first + 1
angle = cmd.get_setting_float('sweep_angle')
if (period * 1.5) < pause:
n_cyc = int(round(pause / period))
frame_list = []
for cyc in range(n_cyc):
frame_list.extend( [(first + ((1+4*cyc)*n_frame)/(4*n_cyc)),
(first + ((3+4*cyc)*n_frame)/(4*n_cyc))] )
else:
frame_list = [ first+n_frame/4, first+(3*n_frame)/4 ]
if 1 or mode:
direction = 0
for frame in frame_list:
if not direction:
cmd.turn(axis,angle/2.0)
cmd.mview("store",frame,power=-1,freeze=1)
direction = -1
else:
cmd.turn(axis, direction * angle)
cmd.mview("store",frame,power=-1,freeze=1)
direction = -direction
cmd.turn(axis,direction * angle/2.0)
cmd.mview("store",last,power=-1,freeze=1)
cmd.mview("interpolate",first,last)
def _nutate(mode, first, last, period, pause, _self=cmd):
cmd = _self
n_frame = last - first + 1
axis = 'y'
angle = cmd.get_setting_float('sweep_angle')
if (period * 1.5) < pause:
n_cyc = int(round(pause / period))
frame_list = []
for cyc in range(n_cyc):
frame_list.append([(first + ((cyc) * n_frame) / (n_cyc)),
(first + ((cyc + 1) * n_frame) / (n_cyc))])
else:
frame_list = [[first, first + n_frame]]
direction = 0
spiral = 1
for frame in frame_list:
_nutate_sub(frame[0], frame[1], angle, spiral, _self=cmd)
spiral = 0
def _nutate(mode,first,last,period,pause,_self=cmd):
cmd = _self
n_frame = last - first + 1
axis = 'y'
angle = cmd.get_setting_float('sweep_angle')
if (period * 1.5) < pause:
n_cyc = int(round(pause / period))
frame_list = []
for cyc in range(n_cyc):
frame_list.append( [(first + ((cyc)*n_frame)/(n_cyc)),
(first + ((cyc+1)*n_frame)/(n_cyc))] )
else:
frame_list = [ [first, first+n_frame] ]
direction = 0
spiral = 1
for frame in frame_list:
_nutate_sub(frame[0], frame[1], angle, spiral, _self=cmd)
spiral = 0
def png(filename, width=0, height=0, dpi=-1.0, ray=0,
quiet=1, prior=0, format=0, _self=cmd):
'''
DESCRIPTION
"png" saves a PNG format image file of the current display.
USAGE
png filename [, width [, height [, dpi [, ray]]]]
ARGUMENTS
filename = string: file path to be written
width = integer or string: width in pixels (without units), inches (in)
or centimeters (cm). If unit suffix is given, dpi argument is required
as well. If only one of width or height is given, the aspect ratio of
the viewport is preserved. {default: 0 (current)}
height = integer or string: height (see width) {default: 0 (current)}
dpi = float: dots-per-inch {default -1.0 (unspecified)}
ray = 0 or 1: should ray be run first {default: 0 (no)}
EXAMPLES
png image.png
png image.png, dpi=300
png image.png, 10cm, dpi=300, ray=1
NOTES
PNG is the only image format supported by PyMOL.
SEE ALSO
mpng, save
PYMOL API
cmd.png(string filename, int width, int height, float dpi,
int ray, int quiet)
'''
r = DEFAULT_ERROR
prior = int(prior)
if prior:
# fetch the prior image, without doing any work (fast-path / non-GLUT thread-safe)
r = _self._png(str(filename),0,0,float(dpi),0,int(quiet),1,
int(format),_self)
if r != 1: # no prior image available -- revert to default behavior
if prior < 0: # default is to fall back to actual rendering
prior = 0
if not prior:
dpi = float(dpi)
if dpi < 0:
dpi = cmd.get_setting_float('image_dots_per_inch')
width = _unit2px(width, dpi)
height = _unit2px(height, dpi)
if thread.get_ident() == pymol.glutThread:
r = _self._png(str(filename),int(width),int(height),float(dpi),
int(ray),int(quiet),0,int(format),_self)
else:
r = _self._do("cmd._png('''%s''',%d,%d,%1.6f,%d,%d,%d,%d)"%
(filename,width,height,dpi,
ray,int(quiet),0,int(format)),_self=_self)
if _self._raising(r,_self): raise QuietException
return r
