def flyAlong(path='flypath',upvector=[0.,1.,0.],sleeptime=None):
"""Fly through the scene along the flypath."""
if type(path) is str:
path = named(path)
if not path:
warning("You have to define a flypath first!")
return
if path.nplex() != 2:
warning("The flypath should be a plex-2 Formex!")
for eye,center in path:
GD.debug("Eye: %s; Center: %s" % (eye,center))
GD.canvas.camera.lookAt(eye,center,upvector)
GD.canvas.display()
GD.canvas.update()
image.saveNext()
if sleeptime is None:
sleeptime = GD.cfg['draw/flywait']
sleeptime = float(sleeptime)
if sleeptime > 0.0:
sleep(sleeptime)
GD.canvas.camera.setCenter(*center)
GD.canvas.camera.setDist(coords.length(center-eye))
GD.canvas.update()
def flyAlong(path="flypath", upvector=[0.0, 1.0, 0.0], sleeptime=None):
"""Fly through the current scene along the flypath.
- `flypath`: a PolyLine or plex-2 Formex.
"""
from plugins.curve import PolyLine
if type(path) is str:
path = named(path)
if not path:
warning("You have to define a flypath first!")
return
if isinstance(path, PolyLine):
path = path.toFormex()
if path.nplex() != 2:
warning("The flypath should be a plex-2 Formex!")
for eye, center in path:
pf.debug("Eye: %s; Center: %s" % (eye, center))
pf.canvas.camera.lookAt(eye, center, upvector)
pf.canvas.display()
pf.canvas.update()
image.saveNext()
if sleeptime is None:
sleeptime = pf.cfg["draw/flywait"]
sleeptime = float(sleeptime)
if sleeptime > 0.0:
sleep(sleeptime)
pf.canvas.camera.setCenter(*center)
pf.canvas.camera.setDist(coords.length(center - eye))
pf.canvas.update()
def flyAlong(path,upvector=[0.,1.,0.],sleeptime=None):
"""Fly through the current scene along the specified path.
This function moves the camera through the subsequent points
of a path, looing at the next point of the path, and keeping
the upvector of the camera oriented along the specified direction.
- `path`: a PolyLine or plex-2 Formex specifyin the camera path.
- `upvector`: the direction of the vertical axis of the camera.
- `sleeptime`: a delay between subsequent images, to slow down
the camera movement.
"""
from plugins.curve import PolyLine
try:
if not isinstance(path,Formex):
path = path.toFormex()
if not path.nplex() in (2,3):
raise ValueError
except:
raise ValueError,"The camera path should be (convertible to) a plex-2 or plex-3 Formex!"
if sleeptime is None:
sleeptime = pf.cfg['draw/flywait']
saved = delay(sleeptime)
saved1 = pf.GUI.actions['Continue'].isEnabled()
pf.GUI.actions['Continue'].setEnabled(True)
for eye,center in path:
pf.debug("Eye: %s; Center: %s" % (eye,center))
pf.canvas.camera.lookAt(eye,center,upvector)
wait()
pf.canvas.display()
pf.canvas.update()
image.saveNext()
delay(saved)
pf.GUI.actions['Continue'].setEnabled(saved1)
pf.canvas.camera.setCenter(*center)
pf.canvas.camera.setDist(coords.length(center-eye))
pf.canvas.update()
