Discussion :

[colapili]

Hello everyone,

I would like to build a hyperspectral cube from a matrix of infrared spectrum and number of pixels on x and y axes.
For exemple, I have 100 spectra with 500 wavelengths and I would like to turn this matrix into a 10 * 10 image with each pixels corresponding to a spectrum...
Hox can I compute it with python ?

Nicolas

[YCL-1]

Hi,

to summarize you are looking to draw a 3D plot?

You should take a look on matplotlib library which provide many tools to ease 2D/3D graph rendering.

Here is an example to draw a 3D surface plot in only 30 lines: https://matplotlib.org/gallery/mplot...-3d-surface-py

[colapili]

Hi,

No I don't want to plot in 3D. In fact I search to plot my data with a heatmap. X and Y corresponding to the spacial values of image and 1 pixel corresponding to the entire frequencies contains in the spectra.

To illustrate this : http://hyperspy.org/hyperspy-doc/cur...alisation.html

Thank you for your response.

Nicolas

[Julien N]

Hi,

If you already know what you are looking for (a heatmap) then what's the issue? Writting a piece of code to draw the heatmap itself, or how to define the height z representing "entire frequencies contained in the spectra".

A small standalone piece of code you already wrote would help us understand your problem.


PS: I guess the downvotes you received are due to the language used for this thread: English. I am sure nobody here is against english speaking people. But this a french forum. A large majority of programing dedicated sites/forums are already in english. Thereby it's nice to have something in another language. So, if you can write in French, even using basic vocabulary or google trad, it is a plus.

J