Re: [Matplotlib-users] Diplaying 2D images in mplot3d

2014-10-02 Thread Nicolas P. Rougier

You might want to have a look at vispy.org, we implemented the wx backend and 
there are several examples available.
(and the new glumpy home is http://glumpy.github.io)

vispy examples at http://vispy.org/gallery.html


Nicolas


On 01 Oct 2014, at 20:27, Fabrice C. kappamonag...@yahoo.co.jp wrote:

 Dear Ben,
 
 Thank you for the explanation. Too bad mplot3d cannot display textured 
 polygons.
 I did have a look at glumpy and it does part of what I am looking for. 
 However, glumpy does not support being embedded in a wxpython application 
 which is a requisite for me.
 
 I guess I just have to learn VTK... 
 
 Thanks again,
 
 Fabrice
 
 Benjamin Root ben.r...@ou.edu wrote:
 
 I tried something like this awhile back to no avail. Because of the kludgy 
 nature of mplot3d, we are lucky we even can display 2d artists like polygons 
 (and, this is me speaking as the de facto maintainer of mplot3d!). Images are 
 an entirely different beast, unfortunately.
 
 What *might* work is getting a pcolormesh object converted into 3d. Not 
 pcolor (as that is an image-based object), but the QuadMesh object that gets 
 returned by pcolormesh(). I haven't tried to convert that into a 3d 
 equivalent, but it might be feasible.
 
 I would also check out glumpy: https://code.google.com/p/glumpy/. I could 
 have sworn I have seen examples of glumpy treating images as texture data 
 for surfaces.
 
 I hope this points you in a useful direction!
 Ben Root
 
 
 On Tue, Sep 30, 2014 at 5:54 PM, Fabrice C. kappamonag...@yahoo.co.jp wrote:
 Dear list,
 
 I would like to display a 2D image in a mplot3d axe in order to combine
 it with a surface3D or a bar3d plot for instance. The effect I am
 looking for is similar to what can be seen in the bottom XY plane of
 http://matplotlib.org/1.4.0/examples/mplot3d/contourf3d_demo2.html,
 except that I would like to have a custom image instead of the filled
 contours.
 
 I googled the subject and found only messages dating at best from 2010.
 These messages mentioned that the imshow() method did not work on a
 mplot3d. Indeed it does not.
 The only alternatives offered by the googled answer to my problem were
 to switch to VTK or Mayavi. For one thing, I never managed to install
 VTK on my PC, and I already have other matplotlib figures in my wxpython
 application so I would really like to stick to matplotlib.
 
 Does anyone have pointers as to how I could display a 2D image in
 mplot3d? Do I need to create a new artist in order to replace the
 non-functionning imshow?
 I see that patch collections work fine in mplot3D. Would it be feasible
 to load an image and have it displayed as a patch collection (1 patch
 for each pixel)?
 
 Any advice would be highly appreciated,
 
 Fabrice
 
 
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Re: [Matplotlib-users] Diplaying 2D images in mplot3d

2014-10-02 Thread Benjamin Root
Correction for something I said earlier. I got my pcolor and pcolormesh
objects mixed up. Neither the QuadMesh nor the PolyCollection from the two
functions are image-based. So they do have a glimmer of hope of being
converted into 3d. The PolyCollection is the best candidate as I think
there is better support for that now in mplot3d. QuadMesh is a different
beast, but might be tamable.

Sorry for any confusion.

Cheers!
Ben Root

On Thu, Oct 2, 2014 at 2:03 AM, Nicolas P. Rougier nicolas.roug...@inria.fr
 wrote:


 You might want to have a look at vispy.org, we implemented the wx backend
 and there are several examples available.
 (and the new glumpy home is http://glumpy.github.io)

 vispy examples at http://vispy.org/gallery.html


 Nicolas


 On 01 Oct 2014, at 20:27, Fabrice C. kappamonag...@yahoo.co.jp wrote:

  Dear Ben,
 
  Thank you for the explanation. Too bad mplot3d cannot display textured
 polygons.
  I did have a look at glumpy and it does part of what I am looking for.
 However, glumpy does not support being embedded in a wxpython application
 which is a requisite for me.
 
  I guess I just have to learn VTK...
 
  Thanks again,
 
  Fabrice
 
  Benjamin Root ben.r...@ou.edu wrote:
 
  I tried something like this awhile back to no avail. Because of the
 kludgy nature of mplot3d, we are lucky we even can display 2d artists like
 polygons (and, this is me speaking as the de facto maintainer of mplot3d!).
 Images are an entirely different beast, unfortunately.
 
  What *might* work is getting a pcolormesh object converted into 3d. Not
 pcolor (as that is an image-based object), but the QuadMesh object that
 gets returned by pcolormesh(). I haven't tried to convert that into a 3d
 equivalent, but it might be feasible.
 
  I would also check out glumpy: https://code.google.com/p/glumpy/. I
 could have sworn I have seen examples of glumpy treating images as
 texture data for surfaces.
 
  I hope this points you in a useful direction!
  Ben Root
 
 
  On Tue, Sep 30, 2014 at 5:54 PM, Fabrice C. kappamonag...@yahoo.co.jp
 wrote:
  Dear list,
 
  I would like to display a 2D image in a mplot3d axe in order to combine
  it with a surface3D or a bar3d plot for instance. The effect I am
  looking for is similar to what can be seen in the bottom XY plane of
  http://matplotlib.org/1.4.0/examples/mplot3d/contourf3d_demo2.html,
  except that I would like to have a custom image instead of the filled
  contours.
 
  I googled the subject and found only messages dating at best from 2010.
  These messages mentioned that the imshow() method did not work on a
  mplot3d. Indeed it does not.
  The only alternatives offered by the googled answer to my problem were
  to switch to VTK or Mayavi. For one thing, I never managed to install
  VTK on my PC, and I already have other matplotlib figures in my wxpython
  application so I would really like to stick to matplotlib.
 
  Does anyone have pointers as to how I could display a 2D image in
  mplot3d? Do I need to create a new artist in order to replace the
  non-functionning imshow?
  I see that patch collections work fine in mplot3D. Would it be feasible
  to load an image and have it displayed as a patch collection (1 patch
  for each pixel)?
 
  Any advice would be highly appreciated,
 
  Fabrice
 
 
  ---
  This email is free from viruses and malware because avast! Antivirus
 protection is active.
  http://www.avast.com
 
 
 
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Re: [Matplotlib-users] Diplaying 2D images in mplot3d

2014-10-02 Thread Fabrice C.
Nicolas,
Thank you for the link to vispy. This looks like it will be much easier for me 
to wrap my mind around vispy than VTK... 

Best regards,
Fabrice


Nicolas P. Rougier nicolas.roug...@inria.fr wrote:


You might want to have a look at vispy.org, we implemented the wx backend and 
there are several examples available.
(and the new glumpy home is http://glumpy.github.io)

vispy examples at http://vispy.org/gallery.html


Nicolas


On 01 Oct 2014, at 20:27, Fabrice C. kappamonag...@yahoo.co.jp wrote:

 Dear Ben,
 
 Thank you for the explanation. Too bad mplot3d cannot display textured 
 polygons.
 I did have a look at glumpy and it does part of what I am looking for. 
 However, glumpy does not support being embedded in a wxpython application 
 which is a requisite for me.
 
 I guess I just have to learn VTK... 
 
 Thanks again,
 
 Fabrice
 
 Benjamin Root ben.r...@ou.edu wrote:
 
 I tried something like this awhile back to no avail. Because of the kludgy 
 nature of mplot3d, we are lucky we even can display 2d artists like polygons 
 (and, this is me speaking as the de facto maintainer of mplot3d!). Images 
 are an entirely different beast, unfortunately.
 
 What *might* work is getting a pcolormesh object converted into 3d. Not 
 pcolor (as that is an image-based object), but the QuadMesh object that gets 
 returned by pcolormesh(). I haven't tried to convert that into a 3d 
 equivalent, but it might be feasible.
 
 I would also check out glumpy: https://code.google.com/p/glumpy/. I could 
 have sworn I have seen examples of glumpy treating images as texture data 
 for surfaces.
 
 I hope this points you in a useful direction!
 Ben Root
 
 
 On Tue, Sep 30, 2014 at 5:54 PM, Fabrice C. kappamonag...@yahoo.co.jp 
 wrote:
 Dear list,
 
 I would like to display a 2D image in a mplot3d axe in order to combine
 it with a surface3D or a bar3d plot for instance. The effect I am
 looking for is similar to what can be seen in the bottom XY plane of
 http://matplotlib.org/1.4.0/examples/mplot3d/contourf3d_demo2.html,
 except that I would like to have a custom image instead of the filled
 contours.
 
 I googled the subject and found only messages dating at best from 2010.
 These messages mentioned that the imshow() method did not work on a
 mplot3d. Indeed it does not.
 The only alternatives offered by the googled answer to my problem were
 to switch to VTK or Mayavi. For one thing, I never managed to install
 VTK on my PC, and I already have other matplotlib figures in my wxpython
 application so I would really like to stick to matplotlib.
 
 Does anyone have pointers as to how I could display a 2D image in
 mplot3d? Do I need to create a new artist in order to replace the
 non-functionning imshow?
 I see that patch collections work fine in mplot3D. Would it be feasible
 to load an image and have it displayed as a patch collection (1 patch
 for each pixel)?
 
 Any advice would be highly appreciated,
 
 Fabrice
 
 
 ---
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Re: [Matplotlib-users] Diplaying 2D images in mplot3d

2014-10-01 Thread Fabrice C.
Dear Ben,

Thank you for the explanation. Too bad mplot3d cannot display textured polygons.
I did have a look at glumpy and it does part of what I am looking for. However, 
glumpy does not support being embedded in a wxpython application which is a 
requisite for me.

I guess I just have to learn VTK... 

Thanks again,

Fabrice

Benjamin Root ben.r...@ou.edu wrote:

I tried something like this awhile back to no avail. Because of the kludgy
nature of mplot3d, we are lucky we even can display 2d artists like
polygons (and, this is me speaking as the de facto maintainer of mplot3d!).
Images are an entirely different beast, unfortunately.

What *might* work is getting a pcolormesh object converted into 3d. Not
pcolor (as that is an image-based object), but the QuadMesh object that
gets returned by pcolormesh(). I haven't tried to convert that into a 3d
equivalent, but it might be feasible.

I would also check out glumpy: https://code.google.com/p/glumpy/. I could
have sworn I have seen examples of glumpy treating images as texture data
for surfaces.

I hope this points you in a useful direction!
Ben Root


On Tue, Sep 30, 2014 at 5:54 PM, Fabrice C. kappamonag...@yahoo.co.jp
wrote:

 Dear list,

 I would like to display a 2D image in a mplot3d axe in order to combine
 it with a surface3D or a bar3d plot for instance. The effect I am
 looking for is similar to what can be seen in the bottom XY plane of
 http://matplotlib.org/1.4.0/examples/mplot3d/contourf3d_demo2.html,
 except that I would like to have a custom image instead of the filled
 contours.

 I googled the subject and found only messages dating at best from 2010.
 These messages mentioned that the imshow() method did not work on a
 mplot3d. Indeed it does not.
 The only alternatives offered by the googled answer to my problem were
 to switch to VTK or Mayavi. For one thing, I never managed to install
 VTK on my PC, and I already have other matplotlib figures in my wxpython
 application so I would really like to stick to matplotlib.

 Does anyone have pointers as to how I could display a 2D image in
 mplot3d? Do I need to create a new artist in order to replace the
 non-functionning imshow?
 I see that patch collections work fine in mplot3D. Would it be feasible
 to load an image and have it displayed as a patch collection (1 patch
 for each pixel)?

 Any advice would be highly appreciated,

 Fabrice


 ---
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 protection is active.
 http://www.avast.com



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Re: [Matplotlib-users] Diplaying 2D images in mplot3d

2014-10-01 Thread Adam Hughes
Instead of learning VTK, you may find it easier to start with Mayavi 2
(written on VTK).



On Wed, Oct 1, 2014 at 2:27 PM, Fabrice C. kappamonag...@yahoo.co.jp
wrote:

 Dear Ben,

 Thank you for the explanation. Too bad mplot3d cannot display textured
 polygons.
 I did have a look at glumpy and it does part of what I am looking for.
 However, glumpy does not support being embedded in a wxpython application
 which is a requisite for me.

 I guess I just have to learn VTK...

 Thanks again,

 Fabrice


 Benjamin Root ben.r...@ou.edu wrote:

 I tried something like this awhile back to no avail. Because of the kludgy
 nature of mplot3d, we are lucky we even can display 2d artists like
 polygons (and, this is me speaking as the de facto maintainer of mplot3d!).
 Images are an entirely different beast, unfortunately.

 What *might* work is getting a pcolormesh object converted into 3d. Not
 pcolor (as that is an image-based object), but the QuadMesh object that
 gets returned by pcolormesh(). I haven't tried to convert that into a 3d
 equivalent, but it might be feasible.

 I would also check out glumpy: https://code.google.com/p/glumpy/. I could
 have sworn I have seen examples of glumpy treating images as texture data
 for surfaces.

 I hope this points you in a useful direction!
 Ben Root


 On Tue, Sep 30, 2014 at 5:54 PM, Fabrice C. kappamonag...@yahoo.co.jp
 wrote:

 Dear list,

 I would like to display a 2D image in a mplot3d axe in order to combine
 it with a surface3D or a bar3d plot for instance. The effect I am
 looking for is similar to what can be seen in the bottom XY plane of
 http://matplotlib.org/1.4.0/examples/mplot3d/contourf3d_demo2.html,
 except that I would like to have a custom image instead of the filled
 contours.

 I googled the subject and found only messages dating at best from 2010.
 These messages mentioned that the imshow() method did not work on a
 mplot3d. Indeed it does not.
 The only alternatives offered by the googled answer to my problem were
 to switch to VTK or Mayavi. For one thing, I never managed to install
 VTK on my PC, and I already have other matplotlib figures in my wxpython
 application so I would really like to stick to matplotlib.

 Does anyone have pointers as to how I could display a 2D image in
 mplot3d? Do I need to create a new artist in order to replace the
 non-functionning imshow?
 I see that patch collections work fine in mplot3D. Would it be feasible
 to load an image and have it displayed as a patch collection (1 patch
 for each pixel)?

 Any advice would be highly appreciated,

 Fabrice


 ---
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[Matplotlib-users] Diplaying 2D images in mplot3d

2014-09-30 Thread Fabrice C.
Dear list,

I would like to display a 2D image in a mplot3d axe in order to combine 
it with a surface3D or a bar3d plot for instance. The effect I am 
looking for is similar to what can be seen in the bottom XY plane of 
http://matplotlib.org/1.4.0/examples/mplot3d/contourf3d_demo2.html, 
except that I would like to have a custom image instead of the filled 
contours.

I googled the subject and found only messages dating at best from 2010. 
These messages mentioned that the imshow() method did not work on a 
mplot3d. Indeed it does not.
The only alternatives offered by the googled answer to my problem were 
to switch to VTK or Mayavi. For one thing, I never managed to install 
VTK on my PC, and I already have other matplotlib figures in my wxpython 
application so I would really like to stick to matplotlib.

Does anyone have pointers as to how I could display a 2D image in 
mplot3d? Do I need to create a new artist in order to replace the 
non-functionning imshow?
I see that patch collections work fine in mplot3D. Would it be feasible 
to load an image and have it displayed as a patch collection (1 patch 
for each pixel)?

Any advice would be highly appreciated,

Fabrice


---
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is active.
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Re: [Matplotlib-users] Diplaying 2D images in mplot3d

2014-09-30 Thread Benjamin Root
I tried something like this awhile back to no avail. Because of the kludgy
nature of mplot3d, we are lucky we even can display 2d artists like
polygons (and, this is me speaking as the de facto maintainer of mplot3d!).
Images are an entirely different beast, unfortunately.

What *might* work is getting a pcolormesh object converted into 3d. Not
pcolor (as that is an image-based object), but the QuadMesh object that
gets returned by pcolormesh(). I haven't tried to convert that into a 3d
equivalent, but it might be feasible.

I would also check out glumpy: https://code.google.com/p/glumpy/. I could
have sworn I have seen examples of glumpy treating images as texture data
for surfaces.

I hope this points you in a useful direction!
Ben Root


On Tue, Sep 30, 2014 at 5:54 PM, Fabrice C. kappamonag...@yahoo.co.jp
wrote:

 Dear list,

 I would like to display a 2D image in a mplot3d axe in order to combine
 it with a surface3D or a bar3d plot for instance. The effect I am
 looking for is similar to what can be seen in the bottom XY plane of
 http://matplotlib.org/1.4.0/examples/mplot3d/contourf3d_demo2.html,
 except that I would like to have a custom image instead of the filled
 contours.

 I googled the subject and found only messages dating at best from 2010.
 These messages mentioned that the imshow() method did not work on a
 mplot3d. Indeed it does not.
 The only alternatives offered by the googled answer to my problem were
 to switch to VTK or Mayavi. For one thing, I never managed to install
 VTK on my PC, and I already have other matplotlib figures in my wxpython
 application so I would really like to stick to matplotlib.

 Does anyone have pointers as to how I could display a 2D image in
 mplot3d? Do I need to create a new artist in order to replace the
 non-functionning imshow?
 I see that patch collections work fine in mplot3D. Would it be feasible
 to load an image and have it displayed as a patch collection (1 patch
 for each pixel)?

 Any advice would be highly appreciated,

 Fabrice


 ---
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 protection is active.
 http://www.avast.com



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