Nodes

Node Declaration

To simplify node declaration, other syntax can be used.

Factory approach

Inputs and outputs are declared in the factory.

from openalea.core import Factory
f = Factory(name = 'mynode',
            inputs = (dict(name="x", interface=None, value=0.),),
            outputs = (dict(name="y", interface=None),),
            nodemodule = 'mymodule',
            nodeclass = 'myclass')

Real funct # mymodule.py

def myclass(a, b):
    return a + b

Metaclass approach

class MetaNode(object):
    pass

class MyNode(object):

    __metaclass__ = MetaNode
    __inputs__ = [ Port(name="x", interface=None, value=0.) ]
    __outputs__ = [ Port(name="y", interface=None) ]

    def __call__(self, inputs):
        return inputs