Re: [Tutor] how to display an image using python

2005-04-14 Thread Danny Yoo


 xv on the machines and PIL uses xv to display.  I have looked at
 PythonMagick but I could not even get past installing it.  It does not have
 a setup.py and uses boost.  I am hoping for a more straightforward Python
 way.

Hi John,


You may want to try PyGame:

http://www.pygame.org/

Although it's mainly for game development, it provides a simple graphics
API that we can use to display images.  If you're running Linux, it's
likely that you have the Simple DirectMedia Layer (SDL) library installed.


I'm not too familiar with the API, but I was able to get some kind of
working example.  We can first construct an image surface:

http://www.pygame.org/docs/ref/pygame_image.html

by loading one from our file:

##
 import pygame.image
 picture = pygame.image.load(na-cat.gif)

 picture.get_size()
(256, 48)
##


At this point, 'picture' contains a surface:

http://www.pygame.org/docs/ref/Surface.html

We can copy ('blit') this surface onto our main screen:


##
 import pygame.display
 pygame.display.set_mode(picture.get_size())
Surface(256x48x16 SW)
 main_surface = pygame.display.get_surface()
 main_surface.blit(picture, (0, 0))
 pygame.display.update()
##


I hope this helps!

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RE: [Tutor] how to display an image using python

2005-04-14 Thread Ertl, John
Danny,

Pygame.org...I would not have thought to look there.  In my google it did
not pop up.  I will definitely take a look and thanks for the example. 

John Ertl 

-Original Message-
From: Danny Yoo [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 14, 2005 12:25
To: Ertl, John
Cc: Tutor
Subject: Re: [Tutor] how to display an image using python


 xv on the machines and PIL uses xv to display.  I have looked at
 PythonMagick but I could not even get past installing it.  It does not
have
 a setup.py and uses boost.  I am hoping for a more straightforward Python
 way.

Hi John,


You may want to try PyGame:

http://www.pygame.org/

Although it's mainly for game development, it provides a simple graphics
API that we can use to display images.  If you're running Linux, it's
likely that you have the Simple DirectMedia Layer (SDL) library installed.


I'm not too familiar with the API, but I was able to get some kind of
working example.  We can first construct an image surface:

http://www.pygame.org/docs/ref/pygame_image.html

by loading one from our file:

##
 import pygame.image
 picture = pygame.image.load(na-cat.gif)

 picture.get_size()
(256, 48)
##


At this point, 'picture' contains a surface:

http://www.pygame.org/docs/ref/Surface.html

We can copy ('blit') this surface onto our main screen:


##
 import pygame.display
 pygame.display.set_mode(picture.get_size())
Surface(256x48x16 SW)
 main_surface = pygame.display.get_surface()
 main_surface.blit(picture, (0, 0))
 pygame.display.update()
##


I hope this helps!
___
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Re: [Tutor] how to display an image using python

2005-04-14 Thread Jay Loden
If you don't mind using an external program, you could use the 'display' 
command from ImageMagick. 

-Jay

On Thursday 14 April 2005 07:59 pm, Ertl, John wrote:
 All,

 I have asked this question before, but one more time most have commented
 about manipulation but displaying the image has become the big issue.  I
 want to display png and gif images on a Linux machine using python.  I am
 using PyNGL to make the images and PIL to manipulate them but I cannot load
 xv on the machines and PIL uses xv to display.  I have looked at
 PythonMagick but I could not even get past installing it.  It does not have
 a setup.py and uses boost.  I am hoping for a more straightforward Python
 way.

 Thanks,

 John Ertl
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