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- """Use array to vary radius and color
- of a line represented as a tube"""
- from vedo import *
- settings.default_font = 'Quikhand'
- ln = [[sin(x), cos(x), x / 2] for x in np.arange(0,9, 0.1)]
- N = len(ln)
- ############################### a simple tube( along ln
- t1 = Tube(ln, c="blue", r=0.08)
- ############################### vary radius
- rads = [0.3*(cos(6.0*ir/N))**2+0.1 for ir in range(N)]
- t2 = Tube(ln, r=rads, c="tomato", res=24)
- ############################### vary color
- cols = list(range(N))
- cols = make_bands(cols, 5) # make color bins
- t3 = Tube(ln, r=rads, c=cols, res=24)
- ############################### visualize
- plt = Plotter(N=3, axes=dict(text_scale=4))
- plt.at(0).show(t1, __doc__)
- plt.at(1).show(t2)
- plt.at(2).show(t3, viewup="z")
- plt.interactive().close()
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