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From: Eric D. <er...@ne...> - 2010-03-15 13:55:12
|
I am thinking of using vpython with a short python course where I am restricted to using iBook G4 laptops with OSX 10.4 installed. I have installed python 2.6.4 and the vpython listed on the vpython site that appears to be appropriate (ostensibly for OSX 10.4 or later): VPython-MacPPC-Py2.6-5.12 (older 5.12 for PowerPC Mac) However, attempts to use vpython meet with the error shown below. Is there a workaround for this or am I just plain out of luck? >>> from visual import * Traceback (most recent call last): File "<pyshell#0>", line 1 from visual import * File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/__init__.py", line 59 import cvisual ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/cvisual.so, 2): Symbol not found: _close$UNIX2003 Referenced from: /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/cvisual.so Expected in: /usr/lib/libSystem.B.dylib |
|
From: Symion <kn...@ip...> - 2010-03-15 07:21:58
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> I have made some modifications to the original ASCII set, apparently some lower case characters were over sized.<br> The new set is available in the program Typer_2.py.<br> <br> Typer_2 is a single points object that has been formatted to represent a Pixel Screen, 160 x 56 pixels or 20 characters x 7 lines.<br> It is a simple text entry tool, enter text as normal but only Overwrite mode is available at the moment.<br> It has a cursor and rudimentary editing functions, as well as Paper, Text and Cursor color control which can be preset.<br> Also, Pixel type and size as well as Cursor color can be modified during run-time. (F1-F4)<br> It should be easy to link multiple points objects so as to make a much larger screen.<br> <br> Source Code: <a href="http://home.iprimus.com.au/knoware/webpage/Typer_2.py">Typer_2.py</a><br> <br> If 'ttfquery' can access ALL system fonts and with the use of points objects it would be possible to produce in-scene Control Panels.<br> Buttons, sliders, list boxes, input gadgets and graphical shapes would be easy to implement.<br> All mapped onto a pixelation Screen!<br> <br> <br> On 14/03/2010 2:46 AM, Bruce Sherwood wrote: <blockquote cite="mid:4B9...@nc..." type="cite"> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> This sounds promising. When VPython was very new, as a kind of stop-gap I wrote the visual.text module for 3D text, but as you know it's very limited and should be replaced by something along the lines of what you're working on. <br> <br> At <a moz-do-not-send="true" href="http://sourceforge.net/projects/ttfquery/files/">http://sourceforge.net/projects/ttfquery/files/</a> the .exe package for Windows requires Python 2.5, but I'm running 2.6, and it wasn't clear to me what files I should download to be able to build from source. Can you tell us? Thanks.<br> <br> Bruce Sherwood<br> <br> Kadir Haldenbilen wrote: <blockquote cite="mid:959...@we..." type="cite"> <style type="text/css"><!-- DIV {margin:0px;} --></style> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div>I have been working on this for a while also. There are some solutions here and there but needs to be put together.<br> <br> If you install the package ttfquery, then you can easily get font outline (contour) data for any font installed on your system, and use it for any (or let's ay most of the) character.<br> <br> I am trying to get 3D Text working for Vpython, for any font as above. For that, to be able to fill in the contours, we need a good triangulation method working in python. Again there are many, but I could not get any single one working. The so called best one comes from the OpenGLContext, but I could not get it going. I use "Triangle", aside, and its output is OK (after writing input-output interface programs), but then I could not "link" it to Vpython since it is an exe. I could not get the output array directly into my script without doing write/read to/from file.<br> <br> Once inside the contours is painted, then 3D is easy.<br> <br> Attached is a simple sample for drawing the contours with ttfquery.<br> <br> Kadir<br> </div> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"> <hr size="1"><b><span style="font-weight: bold;">From:</span></b> Symion <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:kn...@ip..."><kn...@ip...></a><br> <b><span style="font-weight: bold;">To:</span></b> Visual Python <a moz-do-not-send="true" class="moz-txt-link-rfc2396E" href="mailto:vis...@li..."><vis...@li...></a><br> <b><span style="font-weight: bold;">Sent:</span></b> Sat, March 13, 2010 4:48:56 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [Visualpython-users] Complete ASCII character set<br> </font><br> <meta http-equiv="x-dns-prefetch-control" content="off"> Here is a short program that has the Complete ASCII character set (32 to 126)<br> I have implemented it with a single Points object.<br> <br> Multi-colored<br> Variable size<br> Roughly based on Fixedsys font.<br> <br> Source Code: <a moz-do-not-send="true" rel="nofollow" target="_blank" href="http://home.iprimus.com.au/knoware/webpage/ASCII.py">ASCII.py</a><br> <br> <meta http-equiv="x-dns-prefetch-control" content="on"> </div> </div> </div> <br> <pre wrap=""><hr width="90%" size="4"> ------------------------------------------------------------------------------ Download Intel&#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. <a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://p.sf.net/sfu/intel-sw-dev">http://p.sf.net/sfu/intel-sw-dev</a></pre> <pre wrap=""><hr width="90%" size="4"> _______________________________________________ Visualpython-users mailing list <a moz-do-not-send="true" class="moz-txt-link-abbreviated" href="mailto:Vis...@li...">Vis...@li...</a> <a moz-do-not-send="true" class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/visualpython-users">https://lists.sourceforge.net/lists/listinfo/visualpython-users</a> </pre> </blockquote> <pre wrap=""><fieldset class="mimeAttachmentHeader"></fieldset> ------------------------------------------------------------------------------ Download Intel&#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. <a class="moz-txt-link-freetext" href="http://p.sf.net/sfu/intel-sw-dev">http://p.sf.net/sfu/intel-sw-dev</a></pre> <pre wrap=""><fieldset class="mimeAttachmentHeader"></fieldset> _______________________________________________ Visualpython-users mailing list <a class="moz-txt-link-abbreviated" href="mailto:Vis...@li...">Vis...@li...</a> <a class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/visualpython-users">https://lists.sourceforge.net/lists/listinfo/visualpython-users</a> </pre> </blockquote> </body> </html> |
|
From: Symion <kn...@ip...> - 2010-03-14 06:39:52
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<title></title>
</head>
<body bgcolor="#ffffff" text="#000000">
Ah Kadir, you are working on the Ultimate font loader for Vpython!<br>
Load any and all fonts into a numpy array?<br>
<br>
I used points object to store ASCII set because it is very fast when
updating info.<br>
Instead of drawing each font, it simply changes the color at the
indexed place within an existing object.<br>
No repositioning or creating objects required!<br>
So it is fast!<br>
However I had to (laboriously) draw this with a Font/Icon editor - Took
me all afternoon!<br>
It seems ttfquery might make things a lot easier.<br>
Thanks.<br>
<br>
On 14/03/2010 2:28 AM, Kadir Haldenbilen wrote:
<blockquote cite="mid:959...@we..."
type="cite">
<style type="text/css"><!-- DIV {margin:0px;} --></style>
<div
style="font-family: times new roman,new york,times,serif; font-size: 12pt;">
<div>I have been working on this for a while also. There are some
solutions here and there but needs to be put together.<br>
<br>
If you install the package ttfquery, then you can easily get font
outline (contour) data for any font installed on your system, and use
it for any (or let's ay most of the) character.<br>
<br>
I am trying to get 3D Text working for Vpython, for any font as above.
For that, to be able to fill in the contours, we need a good
triangulation method working in python. Again there are many, but I
could not get any single one working. The so called best one comes from
the OpenGLContext, but I could not get it going. I use "Triangle",
aside, and its output is OK (after writing input-output interface
programs), but then I could not "link" it to Vpython since it is an
exe. I could not get the output array directly into my script without
doing write/read to/from file.<br>
<br>
Once inside the contours is painted, then 3D is easy.<br>
<br>
Attached is a simple sample for drawing the contours with ttfquery.<br>
<br>
Kadir<br>
</div>
<div
style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br>
<div
style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font
face="Tahoma" size="2">
<hr size="1"><b><span style="font-weight: bold;">From:</span></b>
Symion <a class="moz-txt-link-rfc2396E" href="mailto:kn...@ip..."><kn...@ip...></a><br>
<b><span style="font-weight: bold;">To:</span></b> Visual Python
<a class="moz-txt-link-rfc2396E" href="mailto:vis...@li..."><vis...@li...></a><br>
<b><span style="font-weight: bold;">Sent:</span></b> Sat, March 13,
2010 4:48:56 PM<br>
<b><span style="font-weight: bold;">Subject:</span></b>
[Visualpython-users] Complete ASCII character set<br>
</font><br>
<meta http-equiv="x-dns-prefetch-control" content="off">
Here is a short program that has the Complete ASCII character set (32
to 126)<br>
I have implemented it with a single Points object.<br>
<br>
Multi-colored<br>
Variable size<br>
Roughly based on Fixedsys font.<br>
<br>
Source Code: <a moz-do-not-send="true" rel="nofollow" target="_blank"
href="http://home.iprimus.com.au/knoware/webpage/ASCII.py">ASCII.py</a><br>
<br>
<meta http-equiv="x-dns-prefetch-control" content="on">
</div>
</div>
</div>
<br>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
------------------------------------------------------------------------------
Download Intel&#174; Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
<a class="moz-txt-link-freetext" href="http://p.sf.net/sfu/intel-sw-dev">http://p.sf.net/sfu/intel-sw-dev</a></pre>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
Visualpython-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Vis...@li...">Vis...@li...</a>
<a class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/visualpython-users">https://lists.sourceforge.net/lists/listinfo/visualpython-users</a>
</pre>
</blockquote>
</body>
</html>
|
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From: Kadir H. <kha...@ya...> - 2010-03-13 16:27:21
|
I think I have downloaded it from the following link: http://pypi.python.org/pypi/TTFQuery/1.0.2 ( I have three different TTF Query installed, this one should be the one working) It has sources as well, Ibelieve they should compile with Python 2.6. I am using Python 2.5. Kadir ________________________________ From: Bruce Sherwood <Bru...@nc...> To: Visual Python <vis...@li...> Sent: Sat, March 13, 2010 6:16:34 PM Subject: Re: [Visualpython-users] Complete ASCII character set This sounds promising. When VPython was very new, as a kind of stop-gap I wrote the visual.text module for 3D text, but as you know it's very limited and should be replaced by something along the lines of what you're working on. At http://sourceforge.net/projects/ttfquery/files/ the .exe package for Windows requires Python 2.5, but I'm running 2.6, and it wasn't clear to me what files I should download to be able to build from source. Can you tell us? Thanks. Bruce Sherwood Kadir Haldenbilen wrote: > >I have been working on this for a while also. There are some >solutions here and there but needs to be put together. > >>If you install the package ttfquery, then you can easily get font >outline (contour) data for any font installed on your system, and use >it for any (or let's ay most of the) character. > >>I am trying to get 3D Text working for Vpython, for any font as above. >For that, to be able to fill in the contours, we need a good >triangulation method working in python. Again there are many, but I >could not get any single one working. The so called best one comes from >the OpenGLContext, but I could not get it going. I use "Triangle", >aside, and its output is OK (after writing input-output interface >programs), but then I could not "link" it to Vpython since it is an >exe. I could not get the output array directly into my script without >doing write/read to/from file. > >>Once inside the contours is painted, then 3D is easy. > >>Attached is a simple sample for drawing the contours with ttfquery. > >>Kadir > > > > ________________________________ From: >Symion <kn...@ip...> >To: Visual Python ><vis...@li...> >Sent: Sat, March 13, >2010 4:48:56 PM >Subject: >[Visualpython-users] Complete ASCII character set > >> >Here is a short program that has the Complete ASCII character set (32 >to 126) >>I have implemented it with a single Points object. > >>Multi-colored >>Variable size >>Roughly based on Fixedsys font. > >>Source Code: ASCII.py > > > > ________________________________ >------------------------------------------------------------------------------ >Download Intel® Parallel Studio Eval >Try the new software tools for yourself. Speed compiling, find bugs >proactively, and fine-tune applications for parallel performance. >See why Intel Parallel Studio got high marks during beta. >http://p.sf.net/sfu/intel-sw-dev > ________________________________ >_______________________________________________ >Visualpython-users mailing list >Vis...@li... https://lists.sourceforge.net/lists/listinfo/visualpython-users |
|
From: Bruce S. <Bru...@nc...> - 2010-03-13 16:16:41
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> This sounds promising. When VPython was very new, as a kind of stop-gap I wrote the visual.text module for 3D text, but as you know it's very limited and should be replaced by something along the lines of what you're working on. <br> <br> At <a href="http://sourceforge.net/projects/ttfquery/files/">http://sourceforge.net/projects/ttfquery/files/</a> the .exe package for Windows requires Python 2.5, but I'm running 2.6, and it wasn't clear to me what files I should download to be able to build from source. Can you tell us? Thanks.<br> <br> Bruce Sherwood<br> <br> Kadir Haldenbilen wrote: <blockquote cite="mid:959...@we..." type="cite"> <style type="text/css"><!-- DIV {margin:0px;} --></style> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"> <div>I have been working on this for a while also. There are some solutions here and there but needs to be put together.<br> <br> If you install the package ttfquery, then you can easily get font outline (contour) data for any font installed on your system, and use it for any (or let's ay most of the) character.<br> <br> I am trying to get 3D Text working for Vpython, for any font as above. For that, to be able to fill in the contours, we need a good triangulation method working in python. Again there are many, but I could not get any single one working. The so called best one comes from the OpenGLContext, but I could not get it going. I use "Triangle", aside, and its output is OK (after writing input-output interface programs), but then I could not "link" it to Vpython since it is an exe. I could not get the output array directly into my script without doing write/read to/from file.<br> <br> Once inside the contours is painted, then 3D is easy.<br> <br> Attached is a simple sample for drawing the contours with ttfquery.<br> <br> Kadir<br> </div> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br> <div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"> <hr size="1"><b><span style="font-weight: bold;">From:</span></b> Symion <a class="moz-txt-link-rfc2396E" href="mailto:kn...@ip..."><kn...@ip...></a><br> <b><span style="font-weight: bold;">To:</span></b> Visual Python <a class="moz-txt-link-rfc2396E" href="mailto:vis...@li..."><vis...@li...></a><br> <b><span style="font-weight: bold;">Sent:</span></b> Sat, March 13, 2010 4:48:56 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> [Visualpython-users] Complete ASCII character set<br> </font><br> <meta http-equiv="x-dns-prefetch-control" content="off"> Here is a short program that has the Complete ASCII character set (32 to 126)<br> I have implemented it with a single Points object.<br> <br> Multi-colored<br> Variable size<br> Roughly based on Fixedsys font.<br> <br> Source Code: <a moz-do-not-send="true" rel="nofollow" target="_blank" href="http://home.iprimus.com.au/knoware/webpage/ASCII.py">ASCII.py</a><br> <br> <meta http-equiv="x-dns-prefetch-control" content="on"> </div> </div> </div> <br> <pre wrap=""> <hr size="4" width="90%"> ------------------------------------------------------------------------------ Download Intel&#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. <a class="moz-txt-link-freetext" href="http://p.sf.net/sfu/intel-sw-dev">http://p.sf.net/sfu/intel-sw-dev</a></pre> <pre wrap=""> <hr size="4" width="90%"> _______________________________________________ Visualpython-users mailing list <a class="moz-txt-link-abbreviated" href="mailto:Vis...@li...">Vis...@li...</a> <a class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/visualpython-users">https://lists.sourceforge.net/lists/listinfo/visualpython-users</a> </pre> </blockquote> </body> </html> |
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From: Symion <kn...@ip...> - 2010-03-13 15:23:43
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body bgcolor="#ffffff" text="#000000"> Here is a short program that has the Complete ASCII character set (32 to 126)<br> I have implemented it with a single Points object.<br> <br> Multi-colored<br> Variable size<br> Roughly based on Fixedsys font.<br> <br> Source Code: <a href="http://home.iprimus.com.au/knoware/webpage/ASCII.py">ASCII.py</a><br> <br> </body> </html> |
|
From: Bruce S. <Bru...@nc...> - 2010-03-09 02:58:09
|
Thanks for this bug report. I find the following: On Windows, label(text='ab&cd') underlines the c, and never shows &. On Mac, displays ok but each getkey() puts TWO events in the queue. Okay on Ubuntu. So there are two bugs, no & on Windows and double events with getkey. Bruce Sherwood Symion wrote: > Has anyone else experienced this problem? > > I cannot display ord(38) character (&) when using label object! > > Here is a code snippet. > > > -------------- > > '''The & character ord(38), seems to be UNPRINTABLE when using label > object. > Press any key to continue''' > > from visual import * > > scene.visible = True > A = label(text='&', height=22, color=(1,0,0)) > > print __doc__ > > for asc in range(33,126,1): > A.text = 'ASCII %i = %s' %(asc,chr(asc)) > key = scene.kb.getkey() > A.text = 'End' > > ------------- > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > ------------------------------------------------------------------------ > > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Symion <kn...@ip...> - 2010-03-08 07:29:10
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body bgcolor="#ffffff" text="#000000"> Has anyone else experienced this problem?<br> <br> I cannot display ord(38) character (&) when using label object!<br> <br> Here is a code snippet.<br> <br> <br> --------------<br> <br> '''The & character ord(38), seems to be UNPRINTABLE when using label object.<br> Press any key to continue'''<br> <br> from visual import *<br> <br> scene.visible = True<br> A = label(text='&', height=22, color=(1,0,0))<br> <br> print __doc__<br> <br> for asc in range(33,126,1):<br> A.text = 'ASCII %i = %s' %(asc,chr(asc))<br> key = scene.kb.getkey()<br> A.text = 'End'<br> <br> -------------<br> </body> </html> |
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From: Joe H. <hea...@gm...> - 2010-03-07 00:11:38
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I've noticed that VIDLE doesn't give source files the appropriate Python icon when saved. Comparing the IDLE (from MacPython 2.x) and VIDLE application bundles, the former has a source file icon in /Contents/Resources. I'm wondering whether copying that icon to the corresponding place in the VIDLE application bundle will cause source files saved in VIDLE to inherit the correct icon. Does anyone know? Joe |
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From: Bruce S. <Bru...@nc...> - 2010-03-06 20:23:27
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Since opacity seems to be involved, perhaps that machine running Ubuntu 9.04 is running an old version 3.x of Visual, whereas the current version of povexport assumes Visual 5.x. You might try writing a small test program to see whether indeed opacity isn't supported. Bruce Sherwood Danny Caballero wrote: > I've been using povexport (contributed program on vpython.org) on both > Windows and Linux (Ubuntu 9.10) with no problems for quite some time. > Today I tried it on an machine running Ubuntu 9.04 and got this error: > > Gtk-WARNING **: Failed to load module "libcanberra-gtk-module.so": > libcanberra-gtk-module.so: cannot open shared object file: No such > file or directory > Traceback (most recent call last): > File "3D_Spring_export.py", line 100, in <module> > pvex.export(display=scene, filename=prefix+str(num)+ext) > File "/home/danny/pymodules/povexport.py", line 608, in export > object_code = function(obj) > File "/home/danny/pymodules/povexport.py", line 437, in export_arrow > no_reflection=arrow_no_reflection, opacity=a.opacity, visible=0) > AttributeError: 'arrow' object has no attribute 'opacity > > Any ideas what to do to fix this? > > BTW, I am loading povexport from a local directory > (/home/danny/pymodules) as a module which I have done on other Linux > machines. > > Thanks, > Danny > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Danny C. <dan...@gm...> - 2010-03-06 12:50:02
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I've been using povexport (contributed program on vpython.org) on both Windows and Linux (Ubuntu 9.10) with no problems for quite some time. Today I tried it on an machine running Ubuntu 9.04 and got this error: Gtk-WARNING **: Failed to load module "libcanberra-gtk-module.so": libcanberra-gtk-module.so: cannot open shared object file: No such file or directory Traceback (most recent call last): File "3D_Spring_export.py", line 100, in <module> pvex.export(display=scene, filename=prefix+str(num)+ext) File "/home/danny/pymodules/povexport.py", line 608, in export object_code = function(obj) File "/home/danny/pymodules/povexport.py", line 437, in export_arrow no_reflection=arrow_no_reflection, opacity=a.opacity, visible=0) AttributeError: 'arrow' object has no attribute 'opacity Any ideas what to do to fix this? BTW, I am loading povexport from a local directory (/home/danny/pymodules) as a module which I have done on other Linux machines. Thanks, Danny |
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From: Bruce S. <Bru...@nc...> - 2010-03-04 16:06:03
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I think what you want is scene.center = vector(0,1,3) # or simply (0,1,3), which will be converted to a vector scene.forward = scene.center-vector(0,4,-6) Since you're familiar with Povray, you might be interested in the VPython-to-Povray converter available in the contributed section of vpython.org. Bruce Sherwood John Wong wrote: > Hi, > > I have spent the last couple days trying to get the following to work. > In Povray, we have a camera syntax like the following > camera {location <0,4,-6> look_at <0,1,3>} > > The result is this > http://i49.tinypic.com/2r6glub.jpg > > I have a hard time doing it in VPython. > I read the documentation, and had tried many combinations. > > Can you guide me with more details on camera position? > > Thanks. > |
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From: John W. <gok...@gm...> - 2010-03-04 09:26:56
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Hi,
I have spent the last couple days trying to get the following to work.
In Povray, we have a camera syntax like the following
camera {location <0,4,-6> look_at <0,1,3>}
The result is this
http://i49.tinypic.com/2r6glub.jpg
I have a hard time doing it in VPython.
I read the documentation, and had tried many combinations.
Can you guide me with more details on camera position?
Thanks.
|
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From: Bruce S. <Bru...@nc...> - 2010-02-17 22:35:04
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What was the most recent version of VPython that did work properly? Is the one that fails the very newest, 5.24 for Windows, made available yesterday? I don't know of any changes over the last many versions that would account for what you're seeing. Apparently your graphics driver is very old by driver standards (2006), and the most likely diagnosis is a problem with the graphics driver. It used to be that one got graphics driver updates for a desktop machine from the manufacturer of the graphics card, in your case NVIDIA, but one got updates for a laptop from the laptop manufacturer. However, I recently noticed that my Dell laptop wasn't displaying the faces_heightfield example correctly despite Dell claiming that my graphics driver was up to date. I updated from NVIDIA and now faces_heightfield displays properly. Bruce Sherwood Dunning, Rodney wrote: > Hello, > > First let me apologize if this has already been covered by recent traffic on the list. I've been working with VPython for several years, mostly in research projects with undergraduate physics majors. I wrote the VPNBody solar system dynamics package that's linked through the VPython website. > > I'm currently working on a Dell laptop with an NVidia graphics card. With the newest version of VPython, all my programs are producing a long output of warning messages to the Shell window. The output starts with this: > > ------------------- > > VPython WARNING: errors in shader program: > Fragment info > ------------- > Internal error: assembly compile error for fragment shader at offset 1742: > -- error message -- > line 56, column 7: error: invalid destination variable > line 63, column 13: error: invalid operand variable > > ------------------ > > Eventually, the output identifies my graphics card: > > ------------------- > > -- internal assembly text -- > !!ARBfp1.0 > OPTION NV_fragment_program2; > # cgc version 1.5.0000, build date May 1 2006 16:21:37 > # command line args: > #vendor NVIDIA Corporation > #version 1.0.02 > #profile fp40 > #program main > > ---------------------- > > My programs run normally except for the text dumped to the shell window. I have attempted to update the driver for my graphics card, but I already have the latest driver according to the Dell website. > > The warning messages do not appear to be relevant for what I'm trying to do with VPython. But they interfere badly with screen prompts and other information that I send to the shell window. I am wondering if there is a way to suppress these messages in the shell window? Or any other fixes? > > Thanks. > > -- > Rodney Dunning > Assistant Professor of Physics > Longwood University > ------------------------------------------------------------------------------ > SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, > Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW > http://p.sf.net/sfu/solaris-dev2dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Bruce S. <Bru...@nc...> - 2010-02-17 22:28:30
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Now available at vpython.org: VPython 5.24 for Mac, using numpy 1.3 instead of the withdrawn numpy 1.4. Bruce Sherwood |
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From: Dunning, R. <dun...@lo...> - 2010-02-17 15:56:24
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Hello, First let me apologize if this has already been covered by recent traffic on the list. I've been working with VPython for several years, mostly in research projects with undergraduate physics majors. I wrote the VPNBody solar system dynamics package that's linked through the VPython website. I'm currently working on a Dell laptop with an NVidia graphics card. With the newest version of VPython, all my programs are producing a long output of warning messages to the Shell window. The output starts with this: ------------------- VPython WARNING: errors in shader program: Fragment info ------------- Internal error: assembly compile error for fragment shader at offset 1742: -- error message -- line 56, column 7: error: invalid destination variable line 63, column 13: error: invalid operand variable ------------------ Eventually, the output identifies my graphics card: ------------------- -- internal assembly text -- !!ARBfp1.0 OPTION NV_fragment_program2; # cgc version 1.5.0000, build date May 1 2006 16:21:37 # command line args: #vendor NVIDIA Corporation #version 1.0.02 #profile fp40 #program main ---------------------- My programs run normally except for the text dumped to the shell window. I have attempted to update the driver for my graphics card, but I already have the latest driver according to the Dell website. The warning messages do not appear to be relevant for what I'm trying to do with VPython. But they interfere badly with screen prompts and other information that I send to the shell window. I am wondering if there is a way to suppress these messages in the shell window? Or any other fixes? Thanks. -- Rodney Dunning Assistant Professor of Physics Longwood University |
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From: Bruce S. <Bru...@nc...> - 2010-02-16 19:55:21
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Thanks to Gary Pajer pointing out that numpy 1.4 has been withdrawn due to compatibility issues, there is now available at vpython.org a rebuilt VPython for Windows (called 5.24) that includes numpy 1.3 instead of numpy 1.4. Tomorrow I'll check whether the Mac version also needs to be rebuilt. Bruce Sherwood |
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From: Bruce S. <Bru...@nc...> - 2010-02-16 14:42:49
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Gary, thanks for tracking this down. I'll rebuild the Windows version.
I think the Mac version may also need to be redone.<br>
<br>
Bruce Sherwood<br>
<br>
Gary Pajer wrote:
<blockquote
cite="mid:88f...@ma..."
type="cite">
<div class="gmail_quote">On Mon, Feb 15, 2010 at 3:13 PM, Gary Pajer <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:gar...@gm...">gar...@gm...</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">We
should probably confirm that 1.3 does break visual before proceeding.
I'm surprised that a change from 1.3 -> 1.4 would cause breakage...
the API is supposed to be the same. <br>
<br>
But wait ... I now recall that there is a discussion going on about
numpy 1.4 ... evidently it actually breaks the ABI, the application
binary interface. There have been over 200 posts on the subject on the
numpy discussion list. The break comes in date/time support, so I
wouldn't think it would affect visual. I glanced at some of the posts,
and they talk as if 1.4 has been released, but I can't find it. Maybe
they've withdrawn it.</blockquote>
<div><br>
</div>
<div>Someone just asked about this on the numpy mailing list. <br>
Evidently it is true that numpy 1.4 has been withdrawn due to the ABI
breakage. </div>
</div>
<pre wrap="">
<hr size="4" width="90%">
------------------------------------------------------------------------------
SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
<a class="moz-txt-link-freetext" href="http://p.sf.net/sfu/solaris-dev2dev">http://p.sf.net/sfu/solaris-dev2dev</a></pre>
<pre wrap="">
<hr size="4" width="90%">
_______________________________________________
Visualpython-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Vis...@li...">Vis...@li...</a>
<a class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/visualpython-users">https://lists.sourceforge.net/lists/listinfo/visualpython-users</a>
</pre>
</blockquote>
</body>
</html>
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From: Gary P. <gar...@gm...> - 2010-02-16 14:07:26
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On Mon, Feb 15, 2010 at 3:13 PM, Gary Pajer <gar...@gm...> wrote: > We should probably confirm that 1.3 does break visual before proceeding. > I'm surprised that a change from 1.3 -> 1.4 would cause breakage... the API > is supposed to be the same. > > But wait ... I now recall that there is a discussion going on about numpy > 1.4 ... evidently it actually breaks the ABI, the application binary > interface. There have been over 200 posts on the subject on the numpy > discussion list. The break comes in date/time support, so I wouldn't think > it would affect visual. I glanced at some of the posts, and they talk as if > 1.4 has been released, but I can't find it. Maybe they've withdrawn it. Someone just asked about this on the numpy mailing list. Evidently it is true that numpy 1.4 has been withdrawn due to the ABI breakage. |
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From: Gary P. <gar...@gm...> - 2010-02-15 20:13:51
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We should probably confirm that 1.3 does break visual before proceeding. I'm surprised that a change from 1.3 -> 1.4 would cause breakage... the API is supposed to be the same. But wait ... I now recall that there is a discussion going on about numpy 1.4 ... evidently it actually breaks the ABI, the application binary interface. There have been over 200 posts on the subject on the numpy discussion list. The break comes in date/time support, so I wouldn't think it would affect visual. I glanced at some of the posts, and they talk as if 1.4 has been released, but I can't find it. Maybe they've withdrawn it. On the one hand, this will bite only people who install the current numpy after installing the current visual *and* are on Windows *and* are novice enough not to figure out how to fix their problem. Most people who install numpy independently from visual will probably be able to figure things out as I did. On the other hand, you eliminate even that small set of people by recompiling. That set might have zero people in it. But to be entirely neat and clean, one would not want visual to break if one installs the current numpy. By the way, AFAICT, the current version of numpy is 1.3. ... if anyone sees something I've missed, and the current version is indeed 1.4, please let me know. Overall, I'd say it's not critical, but some day when you have time it would be better to recompile. But someone in addition to me should try to install the latest numpy 1.3 on top of the latest visual on WinXP and see if it breaks. Just in case the problem is idiosyncratic to me. -g On Mon, Feb 15, 2010 at 12:04 PM, Bruce Sherwood <Bru...@nc...>wrote: > I would guess (without actually trying it) that yes, Visual would surely > work with numpy 1.3 if (but only if) Visual had been compiled with numpy 1.3 > present. You make me realize that I've been too casual in what numpy I > install before building on Windows. I've always just used the most up to > date version of numpy, without checking to see what version of numpy is > being used by scipy. Of course there may be yet another major application > that wants even a different numpy, but surely scipy is the most likely > accompaniment to Visual. > > Should I rebuild the Windows installer using numpy 1.3? > > Bruce Sherwood > > Gary Pajer wrote: > > I installed VPython on a new WinXP machine. First I installed python, then > visual, and all was good. > > Then I went about and installed the other stuff I use ... numpy, scipy, > matplotlib ... > > And VPython crashed python at "import visual" > > Then I discovered that the VPython installer installs numpy 1.4, but the > latest version on numpy.scipy.org is numpy 1.3. So I had unknowingly > downgraded numpy. So I uninstalled numpy and visual (and python for good > measure) and reinstalled, and it works again. > > Is it possible (or already known) that visual does not work with numpy 1.3, > the current release? I'm hesitant to try it myself. Everything is working > now, but I was surprised, and I thought I might document this potential > gotcha. > > -gary > > ------------------------------ > > ------------------------------------------------------------------------------ > SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, > Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOWhttp://p.sf.net/sfu/solaris-dev2dev > > ------------------------------ > > _______________________________________________ > Visualpython-users mailing lis...@li...https://lists.sourceforge.net/lists/listinfo/visualpython-users > > > > ------------------------------------------------------------------------------ > SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, > Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW > http://p.sf.net/sfu/solaris-dev2dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > > |
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From: Bruce S. <Bru...@nc...> - 2010-02-15 17:05:17
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> I would guess (without actually trying it) that yes, Visual would surely work with numpy 1.3 if (but only if) Visual had been compiled with numpy 1.3 present. You make me realize that I've been too casual in what numpy I install before building on Windows. I've always just used the most up to date version of numpy, without checking to see what version of numpy is being used by scipy. Of course there may be yet another major application that wants even a different numpy, but surely scipy is the most likely accompaniment to Visual.<br> <br> Should I rebuild the Windows installer using numpy 1.3?<br> <br> Bruce Sherwood<br> <br> Gary Pajer wrote: <blockquote cite="mid:88f...@ma..." type="cite">I installed VPython on a new WinXP machine. First I installed python, then visual, and all was good.<br> <br> Then I went about and installed the other stuff I use ... numpy, scipy, matplotlib ...<br> <br> And VPython crashed python at "import visual"<br> <br> Then I discovered that the VPython installer installs numpy 1.4, but the latest version on <a moz-do-not-send="true" href="http://numpy.scipy.org">numpy.scipy.org</a> is numpy 1.3. So I had unknowingly downgraded numpy. So I uninstalled numpy and visual (and python for good measure) and reinstalled, and it works again. <br> <br> Is it possible (or already known) that visual does not work with numpy 1.3, the current release? I'm hesitant to try it myself. Everything is working now, but I was surprised, and I thought I might document this potential gotcha.<br> <br> -gary<br> <pre wrap=""> <hr size="4" width="90%"> ------------------------------------------------------------------------------ SOLARIS 10 is the OS for Data Centers - provides features such as DTrace, Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW <a class="moz-txt-link-freetext" href="http://p.sf.net/sfu/solaris-dev2dev">http://p.sf.net/sfu/solaris-dev2dev</a></pre> <pre wrap=""> <hr size="4" width="90%"> _______________________________________________ Visualpython-users mailing list <a class="moz-txt-link-abbreviated" href="mailto:Vis...@li...">Vis...@li...</a> <a class="moz-txt-link-freetext" href="https://lists.sourceforge.net/lists/listinfo/visualpython-users">https://lists.sourceforge.net/lists/listinfo/visualpython-users</a> </pre> </blockquote> </body> </html> |
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From: Gary P. <gar...@gm...> - 2010-02-15 16:45:10
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I installed VPython on a new WinXP machine. First I installed python, then visual, and all was good. Then I went about and installed the other stuff I use ... numpy, scipy, matplotlib ... And VPython crashed python at "import visual" Then I discovered that the VPython installer installs numpy 1.4, but the latest version on numpy.scipy.org is numpy 1.3. So I had unknowingly downgraded numpy. So I uninstalled numpy and visual (and python for good measure) and reinstalled, and it works again. Is it possible (or already known) that visual does not work with numpy 1.3, the current release? I'm hesitant to try it myself. Everything is working now, but I was surprised, and I thought I might document this potential gotcha. -gary |
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From: Lars K. <li...@su...> - 2010-02-10 03:10:42
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Hi, > Now I am wondering, if vpython has a problem with a concurrently running GTK > main loop. But I could not find any indications for this in vpython's > documentation or by searching the web. I guess, I solved the issue. Maybe it was obvious: I just needed to run the vpython window in a separate thread ... cheers, Lars |
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From: Mirko B. <mir...@ie...> - 2010-02-09 14:00:06
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Do you still have the problem with the latest installer (5.23) posted on the website? That should have fixed this issue, which seemed to be related to osx 10.6 Vs 10.5 different linking internals. Mirko Bordignon On Tue, Feb 9, 2010 at 1:42 PM, Danny Caballero <dan...@gm...>wrote: > All, > A student sent a colleague of mine this problem that the student is > having with his Mac install of VPython. > > Is this a Boost related issue? How can I tell this student how to fix > this problem. > > > Python 2.6.4 (r264:75821M, Oct 27 2009, 19:48:32) > [GCC 4.0.1 (Apple Inc. build 5493)] on darwin > Type "copyright", "credits", or "license()" for more information. > >>> =========================== RESTART ============================= > >>> > > Traceback (most recent call last): > File "Untitled", line 2 > from visual import * > File > "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/__init__.py", > line 59 > import cvisual > ImportError: > dlopen(/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/cvisual.so, > 2): no suitable image found. did find: > > /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/cvisual.so: > unknown required load command 0x80000022 > >>> > > Thanks for any help, > Danny > > > ------------------------------------------------------------------------------ > The Planet: dedicated and managed hosting, cloud storage, colocation > Stay online with enterprise data centers and the best network in the > business > Choose flexible plans and management services without long-term contracts > Personal 24x7 support from experience hosting pros just a phone call away. > http://p.sf.net/sfu/theplanet-com > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Danny C. <dan...@gm...> - 2010-02-09 13:13:02
|
All,
A student sent a colleague of mine this problem that the student is
having with his Mac install of VPython.
Is this a Boost related issue? How can I tell this student how to fix
this problem.
Python 2.6.4 (r264:75821M, Oct 27 2009, 19:48:32)
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
Type "copyright", "credits", or "license()" for more information.
>>> =========================== RESTART =============================
>>>
Traceback (most recent call last):
File "Untitled", line 2
from visual import *
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/__init__.py",
line 59
import cvisual
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/cvisual.so,
2): no suitable image found. did find:
/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/visual/cvisual.so:
unknown required load command 0x80000022
>>>
Thanks for any help,
Danny
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