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2D Points, best paractive to store Points

asked 2019-02-13 04:33:40 -0500

thetha gravatar image
sage: from sage.plot.point import Point
sage: P = Point([1,2],[2,3],{'alpha':.5})
sage: P
Point set defined by 2 point(s)
sage: P.options()['alpha']
0.500000000000000
sage: P.xdata
[1, 2]

Why is this not working:

sage: P = Point([1,2],[2,3])

Why do I need this alpha Parameter?

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answered 2019-02-13 06:04:50 -0500

rburing gravatar image

The documentation of Point states:

Note this should normally be used indirectly via "point" and friends

Indeed, you can do

point([(1,2),(2,3)])

which returns a Graphics object. Is that what you want?

If you want to do anything else with the points then I would just store them as tuples, e.g.

pts = [(1,2), (2,3)]
pts_plot = points(pts)

With the (stored) plot you can also do other things, e.g.

pts_plot + plot(1+x, (x,1,2))
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Asked: 2019-02-13 04:33:40 -0500

Seen: 32 times

Last updated: Feb 13