def boundingVolume( self, mode ):
"""Calculate the bounding volume for this node
The bounding volume for a grouping node is
the union of it's children's nodes, and is
dependent on the children of the node's
bounding nodes, as well as the children field
of the node.
"""
current = boundingvolume.getCachedVolume( self )
if current is not None:
return current
# need to create a new volume and make it depend
# on the appropriate fields...
volumes = []
dependencies = [(self,'children')]
unbounded = 0
for child in self.children:
try:
if hasattr(child, 'boundingVolume'):
volume = child.boundingVolume(mode)
volumes.append( volume )
dependencies.append( (volume, None) )
else:
unbounded = 1
break
except boundingvolume.UnboundedObject:
unbounded = 1
try:
volume = boundingvolume.BoundingBox.union( volumes, None )
except boundingvolume.UnboundedObject:
unbounded = 1
if unbounded:
volume = boundingvolume.UnboundedVolume()
return boundingvolume.cacheVolume( self, volume, dependencies )
def boundingVolume(self, mode):
"""Calculate the bounding volume for this node
The bounding volume for a grouping node is
the union of it's children's nodes, and is
dependent on the children of the node's
bounding nodes, as well as the children field
of the node.
"""
current = boundingvolume.getCachedVolume(self)
if current is not None:
return current
# need to create a new volume and make it depend
# on the appropriate fields...
volumes = []
dependencies = [(self, 'choice'), (self, 'whichChoice')]
unbounded = 0
for child in self.renderedChildren():
try:
if hasattr(child, 'boundingVolume'):
volume = child.boundingVolume(mode)
volumes.append(volume)
dependencies.append((volume, None))
else:
unbounded = 1
break
except boundingvolume.UnboundedObject:
unbounded = 1
try:
volume = boundingvolume.BoundingBox.union(volumes, None)
except boundingvolume.UnboundedObject:
unbounded = 1
if unbounded:
volume = boundingvolume.UnboundedVolume()
return boundingvolume.cacheVolume(self, volume, dependencies)
def boundingVolume(self, mode):
"""Create a bounding-volume object for this node"""
from OpenGLContext.scenegraph import boundingvolume
current = boundingvolume.getCachedVolume(self)
if current:
return current
else:
return boundingvolume.volumeFromCoordinate(self, )
def boundingVolume(self, mode):
"""Calculate bounding volume of this attribute's current values"""
current = boundingvolume.getCachedVolume(self)
if current:
return current
try:
buffer = self.bufferView()
except AttributeError, err:
bv = boundingvolume.BoundingVolume()
def boundingVolume( self, mode ):
"""Calculate bounding volume of this attribute's current values"""
current = boundingvolume.getCachedVolume( self )
if current:
return current
try:
buffer = self.bufferView()
except AttributeError, err:
bv = boundingvolume.BoundingVolume()
def boundingVolume( self, mode ):
"""Create a bounding-volume object for this node"""
from OpenGLContext.scenegraph import boundingvolume
current = boundingvolume.getCachedVolume( self )
if current:
return current
else:
return boundingvolume.volumeFromCoordinate(
self,
)
def boundingVolume(self, mode):
"""Create a bounding-volume object for this node"""
from OpenGLContext.scenegraph import boundingvolume
current = boundingvolume.getCachedVolume(self)
if current:
return current
return boundingvolume.cacheVolume(
self,
boundingvolume.AABoundingBox(size=self.size, ),
((self, 'size'), ),
)
def boundingVolume(self, mode):
"""Create a bounding-volume object for this node"""
from OpenGLContext.scenegraph import boundingvolume
current = boundingvolume.getCachedVolume(self)
if current:
return current
return boundingvolume.cacheVolume(
self,
boundingvolume.AABoundingBox(
# This vastly overestimates the size!
size=[self.size * 2, self.size * 2, self.size * 2], ),
((self, 'size'), ),
)
def boundingVolume( self, mode ):
"""Create a bounding-volume object for this node"""
from OpenGLContext.scenegraph import boundingvolume
current = boundingvolume.getCachedVolume( self )
if current:
return current
return boundingvolume.cacheVolume(
self,
boundingvolume.AABoundingBox(
size = self.size,
),
( (self, 'size'), ),
)
def boundingVolume( self, mode ):
"""Create a bounding-volume object for this node"""
from OpenGLContext.scenegraph import boundingvolume
current = boundingvolume.getCachedVolume( self )
if current:
return current
return boundingvolume.cacheVolume(
self,
boundingvolume.AABoundingBox(
# This vastly overestimates the size!
size = [self.size*2,self.size*2,self.size*2],
),
( (self, 'size'), ),
)
def boundingVolume(self, mode=None):
"""Create a bounding-volume object for this node
In this case we use the AABoundingBox, despite
the presence of the bounding sphere implementation.
This is just a preference issue, I'm using
AABoundingBox everywhere else, and want the sphere
to interoperate properly.
"""
current = boundingvolume.getCachedVolume(self)
if current:
return current
radius = self.radius
return boundingvolume.cacheVolume(
self,
boundingvolume.AABoundingBox(size=(radius * 2, self.height,
radius * 2), ),
((self, 'radius'), (self, 'height')),
)
def boundingVolume( self, mode=None ):
"""Create a bounding-volume object for this node
In this case we use the AABoundingBox, despite
the presence of the bounding sphere implementation.
This is just a preference issue, I'm using
AABoundingBox everywhere else, and want the sphere
to interoperate properly.
"""
current = boundingvolume.getCachedVolume( self )
if current:
return current
return boundingvolume.cacheVolume(
self,
boundingvolume.AABoundingBox(
size = (self.radius*2,self.radius*2,self.radius*2),
),
( (self, 'radius'), ),
)
def boundingVolume(self, mode):
"""Calculate bounding volume of this attribute's current values"""
current = boundingvolume.getCachedVolume(self)
if current:
return current
try:
buffer = self.bufferView()
except AttributeError as err:
bv = boundingvolume.BoundingVolume()
else:
bv = boundingvolume.AABoundingBox.fromPoints(buffer)
return boundingvolume.cacheVolume(
self,
bv,
(
(self, None),
(self, 'buffer'),
(self, 'offset'),
(self, 'stride'),
(self.buffer, 'buffer'),
),
)
def boundingVolume( self, mode ):
"""Create a bounding-volume object for this node
This is our geometry's boundingVolume, with the
addition that any dependent volume must be dependent
on our geometry field.
"""
current = boundingvolume.getCachedVolume( self )
if current:
return current
if self.geometry:
if hasattr( self.geometry, 'boundingVolume'):
volume = self.geometry.boundingVolume(mode)
else:
# is considered always visible
volume = boundingvolume.UnboundedVolume()
else:
# is never visible
volume = boundingvolume.BoundingVolume()
return boundingvolume.cacheVolume(
self, volume, ((self, 'geometry'),(volume,None)),
)
def boundingVolume( self, mode ):
"""Create a bounding-volume object for this node
This is our geometry's boundingVolume, with the
addition that any dependent volume must be dependent
on our geometry field.
"""
current = boundingvolume.getCachedVolume( self )
if current:
return current
if self.geometry:
if hasattr( self.geometry, 'boundingVolume'):
volume = self.geometry.boundingVolume(mode)
else:
# is considered always visible
volume = boundingvolume.UnboundedVolume()
else:
# is never visible
volume = boundingvolume.BoundingVolume()
return boundingvolume.cacheVolume(
self, volume, ((self, 'geometry'),(volume,None)),
)
