def __init__(self, id, data, components, xmlnode=None):
"""Create a name source instance.
:param str id:
A unique string identifier for the source
:param numpy.array data:
Numpy array (unshaped) with the source values
:param tuple components:
Tuple of strings describing the semantic of the data,
e.g. ``('JOINT')`` would cause :attr:`data` to be
reshaped as ``(-1, 1)``
:param xmlnode:
When loaded, the xmlnode it comes from.
"""
self.id = id
"""The unique string identifier for the source"""
self.data = data
"""Numpy array with the source values. This will be shaped as ``(-1,N)`` where ``N = len(self.components)``"""
self.data.shape = (-1, len(components) )
self.components = components
"""Tuple of strings describing the semantic of the data, e.g. ``('JOINT')``"""
if xmlnode != None:
self.xmlnode = xmlnode
"""ElementTree representation of the source."""
else:
self.data.shape = (-1,)
txtdata = ' '.join(map(str, self.data.tolist() ))
rawlen = len( self.data )
self.data.shape = (-1, len(self.components) )
acclen = len( self.data )
stridelen = len(self.components)
sourcename = "%s-array"%self.id
self.xmlnode = E.source(
E.Name_array(txtdata, count=str(rawlen), id=sourcename),
E.technique_common(
E.accessor(
*[E.param(type='Name', name=c) for c in self.components]
, **{'count':str(acclen), 'stride':str(stridelen), 'source':sourcename})
)
, id=self.id )
