def __init__(self, ts=None, camera=None, volume=None, raycaster=None):
#Values to control screen resolution
if ts != None:
self.source = ts
else:
self.source = TheiaSource(volume=volume, raycaster=raycaster)
if camera == None:
self.camera = Camera()
else:
self.camera = camera
def __init__(self, ts = None, camera = None, volume = None, raycaster = None) :
#Values to control screen resolution
if ts != None :
self.source = ts
else :
self.source = TheiaSource(volume = volume, raycaster = raycaster)
if camera == None :
self.camera = Camera()
else :
self.camera = camera
class TheiaScene:
r"""
TheiaScene
This is the highest level entry point into Theia.
This class is a container for a Theia source and
a camera for controlling a view onto the source.
Call :
update()
To perform the volume rendering.
Call :
get_results()
To get the resulting image array.
Parameters
----------
ts : TheiaSource
The container for the raycasting algorithm and the volumetric data
volume :
If a TheiaSource is not specified a volme can be used to initialize
the scene. However, rendering will only occur when a raycaster
is also provided.
camera :
A camera for controling view point. Must be able to provide a 4x4
matrix to the raycaster via get_matrix()
If no camera is provided the default Theia Camera is used.
Example:
from yt.visualization.volume_rendering.theia.scene import TheiaScene
from yt.visualization.volume_rendering.algorithms.front_to_back import FrontToBackRaycaster
import numpy as np
#load 3D numpy array of float32
volume = np.load("/home/bogert/log_densities_1024.npy")
scene = TheiaScene( volume = volume, raycaster = FrontToBackRaycaster() )
scene.camera.rotateX(1.0)
scene.update()
surface = scene.get_results()
#now do something with surface
"""
def __init__(self, ts = None, camera = None, volume = None, raycaster = None) :
#Values to control screen resolution
if ts != None :
self.source = ts
else :
self.source = TheiaSource(volume = volume, raycaster = raycaster)
if camera == None :
self.camera = Camera()
else :
self.camera = camera
def get_raycaster(self):
"""
This is for programmers who would prefer calling :
scene.get_raycaster()
instead of :
scene.source.raycaster
"""
return self.source.raycaster
def update(self):
"""
This will send the camera's modelview matrix to
the raycaster and call the raycaster's cast function
to perform the volume rendering.
"""
self.source.update(self.camera.get_matrix())
def get_results(self):
"""
This will cause the results of the volume rendering to be
copied back from the GPU and then returned as a 2d numpy array.
"""
return self.source.get_results()
class TheiaScene:
r"""
TheiaScene
This is the highest level entry point into Theia.
This class is a container for a Theia source and
a camera for controlling a view onto the source.
Call :
update()
To perform the volume rendering.
Call :
get_results()
To get the resulting image array.
Parameters
----------
ts : TheiaSource
The container for the raycasting algorithm and the volumetric data
volume :
If a TheiaSource is not specified a volme can be used to initialize
the scene. However, rendering will only occur when a raycaster
is also provided.
camera :
A camera for controling view point. Must be able to provide a 4x4
matrix to the raycaster via get_matrix()
If no camera is provided the default Theia Camera is used.
Example:
from yt.visualization.volume_rendering.theia.scene import TheiaScene
from yt.visualization.volume_rendering.algorithms.front_to_back import FrontToBackRaycaster
import numpy as np
#load 3D numpy array of float32
volume = np.load("/home/bogert/log_densities_1024.npy")
scene = TheiaScene( volume = volume, raycaster = FrontToBackRaycaster() )
scene.camera.rotateX(1.0)
scene.update()
surface = scene.get_results()
#now do something with surface
"""
def __init__(self, ts=None, camera=None, volume=None, raycaster=None):
#Values to control screen resolution
if ts != None:
self.source = ts
else:
self.source = TheiaSource(volume=volume, raycaster=raycaster)
if camera == None:
self.camera = Camera()
else:
self.camera = camera
def get_raycaster(self):
"""
This is for programmers who would prefer calling :
scene.get_raycaster()
instead of :
scene.source.raycaster
"""
return self.source.raycaster
def update(self):
"""
This will send the camera's modelview matrix to
the raycaster and call the raycaster's cast function
to perform the volume rendering.
"""
self.source.update(self.camera.get_matrix())
def get_results(self):
"""
This will cause the results of the volume rendering to be
copied back from the GPU and then returned as a 2d numpy array.
"""
return self.source.get_results()
