hi, as soon as i try to use redim with the following code the display will turn white after setting the first point:
import numpy as np
import holoviews as hv
from holoviews.plotting.links import DataLink
hv.extension('bokeh')
X, Y = np.mgrid[-10.0:10.0:11j, -10.0:10.0:11j]
img = hv.Image((X[:, 0], Y[0, :], X*Y))
#start_data = hv.OrderedDict({'x': [2, 1], 'y': [2, 1]})
start_data = hv.OrderedDict({'x': [], 'y': []})
stream = hv.streams.PointDraw(data=start_data)
dims = dict(
x=hv.Dimension(('X', 'X'), range=(-10, 10)),
y=hv.Dimension(('Y', 'Y'), range=(-10, 10))
)
def snap_points(data):
closest = img.closest(list(zip(data['x'], data['y'])))
return hv.Points(closest)
points = hv.DynamicMap(snap_points, streams=[stream])
table = hv.Table(stream.data, ['x', 'y'])
DataLink(points, table)
(
img * points
+ points
+ table
).redim(**dims)
Is this a bug or am I doing something wrong? I also failed to use this with points at the beginning.