def box_with_connectable(text,
box_size,
box_loc,
node_spacing,
hidden_layer_node_num,
box_colour='#55CC77'):
# the box
nb = NodeBrush('box', size=size)
nb.size = box_size
nb.color = box_colour
nodes3 = viznet.node_sequence(nb, 1, box_loc, space=node_spacing)
nodes3[0].text(text, 'right', fontsize=font_size_small)
# the connectable-invisible nodes
nb = NodeBrush('invisible',
size=box_size[1]) # box_size[1] is the height of box
# nb = NodeBrush([
# None,
# "rectangle",
# "none"
# ], size=box_size[1]) # box_size[1] is the height of box
invis = viznet.node_sequence(nb,
hidden_layer_node_num,
box_loc,
space=node_spacing)
return nodes3, invis
def box_with_connectable(text,
box_size,
box_loc,
node_spacing,
hidden_layer_node_num,
box_colour='lime',
text_pos='right',
text_kwargs={}):
# def box_with_connectable(text, box_size, box_loc, node_spacing, hidden_layer_node_num, box_colour='#55CC77'):
# the box
nb = NodeBrush('box', size=size)
nb.size = box_size
nb.color = box_colour
nodes3 = viznet.node_sequence(nb, 1, box_loc, space=node_spacing)
text_colour = box_colour
if box_colour == 'lime':
text_colour = 'green'
if box_colour == 'grey':
text_colour = 'black'
nodes3[0].text(text, text_pos, fontsize=font_size_small, color=text_colour)
# the connectable-invisible nodes
nb = NodeBrush('invisible',
size=box_size[1]) # box_size[1] is the height of box
# nb = NodeBrush([
# None,
# "rectangle",
# "none"
# ], size=box_size[1]) # box_size[1] is the height of box
invis = viznet.node_sequence(nb,
hidden_layer_node_num,
box_loc,
space=node_spacing)
return nodes3, invis
def draw_feed_forward(ax, num_node_list, size=2):
'''
draw a feed forward neural network.
Args:
num_node_list (list<int>): number of nodes in each layer.
'''
num_hidden_layer = len(num_node_list) - 2
token_list = ['\sigma^z'] + \
['y^{(%s)}' % (i + 1) for i in range(num_hidden_layer)] + ['\psi']
kind_list = ['nn.input'] + ['nn.hidden'] * num_hidden_layer + ['nn.output']
radius_list = [0.3] + [0.2] * num_hidden_layer + [0.3]
y_list = 1.5 * np.arange(len(num_node_list))
text_list = ['$\phi$'] * 3
seq_list = []
for n, kind, radius, y, text in zip(num_node_list, kind_list, radius_list,
y_list, text_list):
b = NodeBrush(kind)
_nodes = viznet.node_sequence(b, n, center=(0, y))
for _n in _nodes:
_n.text(text, 'center', fontsize=18)
# print(_nodes)
seq_list.append(_nodes)
eb = EdgeBrush('<--')
for st, et in zip(seq_list[:-1], seq_list[1:]):
viznet.connecta2a(st, et, eb)
# viznet.node_sequence(NodeBrush('box', ax, size=size), 1, (0,4))
#
node = NodeBrush('box', size=size)
node.size = (0.5, 0.3)
viznet.node_sequence(node, 1, (0, ))