Hello,
I'm managing to show the info from two scalars, following the example
of the electronic orbital, however I would like to change the second
scalar in an interactive way.
I've read the doc about animation:
http://github.enthought.com/mayavi/mayavi/mlab.html#animating-the-data
but unfortunaly the only scalar I can get hold is the d, meanwhile I'm
interested in second_scalar
Is there a way to change it or to get hold of that scalar, without
blowing the memory?
Cheers,
Michele.
from enthought.mayavi import mlab
import numpy as np
x = np.array([0.0, 25.0, 50.0, 50.0, 96.053047180175781, 142.10609436035156, 50.0, 96.053047180175781, 142.10609436035156])
y = np.array([0.0, 0.0, 0.0, 0.0, 19.470916748046875, 38.94183349609375, 0.0, -19.470916748046875, -38.94183349609375])
z = np.array([0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0])
d = np.array([ 5., 5., 5., 1.5, 1.5, 1.5, 1.5, 1.5, 1.5])
edges = np.array([[1, 0], [2, 1], [4, 3], [5, 4], [7, 6], [8, 7]])
second_scalar = np.array([10, 10, 10, 20, 20, 20, 30, 30, 30])
points = mlab.pipeline.scalar_scatter(x, y, z, d/2.0)
dataset = points.mlab_source.dataset
dataset.point_data.get_array(0).name = 'diameter'
dataset.lines = np.vstack(edges)
dataset.point_data.update()
# The tube
src = mlab.pipeline.set_active_attribute(points, point_scalars='diameter')
stripper = mlab.pipeline.stripper(src)
tube = mlab.pipeline.tube(stripper, tube_sides = 6, tube_radius = 1)
tube.filter.capping = True
# tube.filter.use_default_normal = False
tube.filter.vary_radius = 'vary_radius_by_absolute_scalar'
# Extend to the right lenght
repeat = len(d) / len(second_scalar)
scalar = np.repeat(second_scalar, repeat)
array_id = dataset.point_data.add_array(second_scalar)
dataset.point_data.get_array(array_id).name = 'second_scalar'
dataset.point_data.update()
src2 = mlab.pipeline.set_active_attribute(tube,
point_scalars='second_scalar')
surf = mlab.pipeline.surface(src2)
ms = surf.mlab_source
print ms.scalars
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