def vectorArrayFromList(cls, vectorList):
dims = len(vectorList[0])
if dims == 2:
vectorArray = osg.Vec2Array(len(vectorList))
elif dims == 3:
vectorArray = osg.Vec3Array(len(vectorList))
elif dims == 4:
vectorArray = osg.Vec4Array(len(vectorList))
else:
raise ValueError, gettext('Vector arrays can only be created with vectors of 2, 3 or 4 dimensions.')
arrayPointer = pointer(c_float.from_address(int(vectorArray.getDataPointer()))) # pylint: disable=E1101
vectorSize = vectorArray.getDataSize()
offset = 0
for vector in vectorList:
for dim in range(dims):
arrayPointer[offset + dim] = vector[dim]
offset += vectorSize
return vectorArray
def vectorArrayFromList(cls, vectorList):
dims = len(vectorList[0])
if dims == 2:
vectorArray = osg.Vec2Array(len(vectorList))
elif dims == 3:
vectorArray = osg.Vec3Array(len(vectorList))
elif dims == 4:
vectorArray = osg.Vec4Array(len(vectorList))
else:
raise ValueError, gettext('Vector arrays can only be created with vectors of 2, 3 or 4 dimensions.')
arrayPointer = pointer(c_float.from_address(int(vectorArray.getDataPointer()))) # pylint: disable=E1101
vectorSize = vectorArray.getDataSize()
offset = 0
for vector in vectorList:
for dim in range(dims):
arrayPointer[offset + dim] = vector[dim]
offset += vectorSize
return vectorArray
def update_at_address(self, address):
c_float.from_address(address).value = self.value
def __init__(self, data):
self.data = data
self.start = cast(c_char_p(self.data), c_void_p).value
self.header = Header.from_address(self.start)
vertex_count = c_ushort.from_address(self.start + sizeof(Header))
self.vertices = Array(
type=Vertex,
address=self.start + sizeof(Header) + sizeof(c_ushort),
amount=vertex_count.value,
)
triangle_count = c_ushort.from_address(self.vertices.end)
self.triangles = Array(
type=Triangle,
address=self.vertices.end + sizeof(c_ushort),
amount=triangle_count.value,
)
group_count = c_ushort.from_address(self.triangles.end)
self.groups = []
addr = self.triangles.end + sizeof(c_ushort)
for i in range(group_count.value):
self.groups.append(Group(addr))
addr = self.groups[-1].end
material_count = c_ushort.from_address(addr)
self.materials = Array(
type=Material,
address=addr + sizeof(c_ushort),
amount=material_count.value,
)
addr = self.materials.end
self.fps = c_float.from_address(addr)
addr += sizeof(c_float)
self.current_time = c_float.from_address(addr)
addr += sizeof(c_float)
self.frame_count = c_int.from_address(addr)
addr += sizeof(c_int)
joint_count = c_ushort.from_address(addr)
addr += sizeof(c_ushort)
self.joints = []
for i in range(joint_count.value):
joint = Joint(addr)
self.joints.append(joint)
addr = joint.end
sub_version = c_int.from_address(addr) # should be 1
addr += sizeof(c_int)
group_comment_count = c_uint.from_address(addr)
addr += sizeof(c_uint)
#fixme implement group comments (count is currently 0)
material_comment_count = c_int.from_address(addr)
addr += sizeof(c_int)
#fixme implement material comments (count is currently 0)
joint_comment_count = c_int.from_address(addr)
addr += sizeof(c_int)
#fixme implement joint comments (count is currently 0)
model_comment_count = c_int.from_address(addr)
addr += sizeof(c_int)
#fixme implement model comments (count is currently 0)
sub_version = c_int.from_address(addr).value
addr += sizeof(c_int)
if sub_version == 1:
extra_type = VertexExtra1
elif sub_version == 2:
raise NotImplemented()
self.vertex_extras = Array(
type=extra_type,
address=addr,
amount=vertex_count.value,
)
addr = self.vertex_extras.end
assert addr - self.start == len(data)
def update_at_address(self, address):
c_float.from_address(address + 0).value = self.value.x
c_float.from_address(address + 4).value = self.value.y
c_float.from_address(address + 8).value = self.value.z
def __init__(self, data):
self.data = data
self.start = cast(c_char_p(self.data), c_void_p).value
self.header = Header.from_address(self.start)
vertex_count = c_ushort.from_address(self.start + sizeof(Header))
self.vertices = Array(
type = Vertex,
address = self.start + sizeof(Header) + sizeof(c_ushort),
amount = vertex_count.value,
)
triangle_count = c_ushort.from_address(self.vertices.end)
self.triangles = Array(
type = Triangle,
address = self.vertices.end + sizeof(c_ushort),
amount = triangle_count.value,
)
group_count = c_ushort.from_address(self.triangles.end)
self.groups = []
addr = self.triangles.end+sizeof(c_ushort)
for i in range(group_count.value):
self.groups.append(Group(addr))
addr = self.groups[-1].end
material_count = c_ushort.from_address(addr)
self.materials = Array(
type = Material,
address = addr + sizeof(c_ushort),
amount = material_count.value,
)
addr = self.materials.end
self.fps = c_float.from_address(addr)
addr += sizeof(c_float)
self.current_time = c_float.from_address(addr)
addr += sizeof(c_float)
self.frame_count = c_int.from_address(addr)
addr += sizeof(c_int)
joint_count = c_ushort.from_address(addr)
addr += sizeof(c_ushort)
self.joints = []
for i in range(joint_count.value):
joint = Joint(addr)
self.joints.append(joint)
addr = joint.end
sub_version = c_int.from_address(addr) # should be 1
addr += sizeof(c_int)
group_comment_count = c_uint.from_address(addr)
addr += sizeof(c_uint)
#fixme implement group comments (count is currently 0)
material_comment_count = c_int.from_address(addr)
addr += sizeof(c_int)
#fixme implement material comments (count is currently 0)
joint_comment_count = c_int.from_address(addr)
addr += sizeof(c_int)
#fixme implement joint comments (count is currently 0)
model_comment_count = c_int.from_address(addr)
addr += sizeof(c_int)
#fixme implement model comments (count is currently 0)
sub_version = c_int.from_address(addr).value
addr += sizeof(c_int)
if sub_version == 1:
extra_type = VertexExtra1
elif sub_version == 2:
raise NotImplemented()
self.vertex_extras = Array(
type = extra_type,
address = addr,
amount = vertex_count.value,
)
addr = self.vertex_extras.end
assert addr - self.start == len(data)
