mayavi question

[Francois]

Hi all,

in a 3d plot, I would like to include a square image with 'imshow'.
Does anybody know if I can decide its position and orientation in
space ?

thanks

[Ethan Coon]

I believe the mlab features in mayavi2 are designed to emulate the
matplotlib functions of the same name. So I suspect (but can't
guarantee) that your answer would be via the "extent" keyword...

mlab.imshow(imagearray, extent=[xmin, xmax, ymin, ymax])

Ethan

--
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Ethan Coon
DOE CSGF - Graduate Student
Dept. Applied Physics & Applied Mathematics
Columbia University
212-854-0415

http://www.ldeo.columbia.edu/~ecoon/
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[francois monard]

I found the right way to do it. 

You have to use the mlab.mesh function. Each point of the image is given by 3 coordinates and the image as a function on this set of coordinates...

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Francois Monard
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[Ethan Coon]

Cool, I'm curious to see your result if you don't mind sharing...

Ethan

[francois monard]

sure, I'll send a picture tomorrow

[francois monard]

as I said last night, heres a picture.

In the center, 3d mickey is an attenuation map for the transport equation, displayed with 'contour3d'. The images around it are X-ray CT images of this map ( ideally :) ) along directions corresponding to the orientation of these planes. I used 'mesh' in order to visualize these planes.

[Ethan Coon]

Very cool. I'm always amazed at the power of mayavi/vtk :)

Ethan