No one has a shareable code example of how to invert a colormap to an RGB array?
DG
···
--- On Tue, 9/9/08, David Goldsmith <d_l_goldsmith@...9...> wrote:
eventually ... I'd like to do what John implies
is possible, i.e., "invert" a cm back to its RGB
table - John (or anyone) can you short-cut the learning
process for me w/ a code example of how to do this?
Thanks!
DG
eventually ... I'd like to do what John implies
is possible, i.e., "invert" a cm back to its RGB
table - John (or anyone) can you short-cut the learning
process for me w/ a code example of how to do this?
Thanks!
DG
No one has a shareable code example of how to invert a colormap to an RGB array?
Is this what you are looking for? (outputs RGBA but just override the
alpha or extract the RGB part)
In [9]: import matplotlib.cm as cm
In [10]: x = np.arange(0, 1, 0.1)
In [11]: print cm.jet(x)
[[ 0. 0. 0.5 1. ]
[ 0. 0. 0.9456328 1. ]
[ 0. 0.3 1. 1. ]
[ 0. 0.69215686 1. 1. ]
[ 0.16129032 1. 0.80645161 1. ]
[ 0.49019608 1. 0.47754586 1. ]
[ 0.80645161 1. 0.16129032 1. ]
[ 1. 0.77051561 0. 1. ]
[ 1. 0.40740741 0. 1. ]
[ 0.9456328 0.02977487 0. 1. ]]
···
On Tue, Sep 16, 2008 at 2:40 PM, David Goldsmith <d_l_goldsmith@...9...> wrote:
--- On Tue, 9/9/08, David Goldsmith <d_l_goldsmith@...9...> wrote: