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From: Jason G. <jas...@cr...> - 2011-09-01 15:15:31
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On 8/29/11 10:35 AM, Adam O Hausknecht wrote: > Hi all, > > Is there away to import Visual Python into the Sage > (http://www.sagemath.org/) > which uses Python as its language? Here is a mailing list post from the Sage development list about this: http://groups.google.com/group/sage-devel/browse_thread/thread/c729f20eff044cbf/6564f7ec263d4627?lnk=gst&q=vpython#6564f7ec263d4627 A long time ago, a sage developer made an experimental Sage package for vpython. I don't know if it's been updated for several years. I'd suggest continuing the conversation on sage-support (and maybe here too) if people are interested. Thanks, Jason |
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From: Bruce S. <Bru...@nc...> - 2011-09-01 03:46:37
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I don't see how that could ever have worked. The origin assignment is attempting to add a vector varGVMapper.CurrentObject.pos, which I assume is a vector, to a tuple. It is true that you could say origin = (0,1.8,0), in which case VPython silently converts the tuple to a vector, but it won't convert the tuple when added to a vector. The error message isn't helpful, though.... Bruce Sherwood On Wed, Aug 31, 2011 at 10:30 PM, Roberto Aguirre Maturana <rha...@ho...> wrote: > Hi, > > I'm returning to a project I haven't worked on since version 3 of VPython. > Back in the days, the following line of code > > self.frameScale.rotate (angle = pi/2., axis = (1.0, 0.0, 0.0), origin = > (varGVMapper.CurrentObject.pos + (0,1.8,0))) > > used to work just fine. However, with the latest version of VPython it > raises the following error: > > ValueError: Vectors must have length 2 or 3 > > What seems to be the problem? > > Best regards, > Roberto Aguirre Maturana. > > > -- > Using Opera's revolutionary email client: http://www.opera.com/mail/ > > ------------------------------------------------------------------------------ > Special Offer -- Download ArcSight Logger for FREE! > Finally, a world-class log management solution at an even better > price-free! And you'll get a free "Love Thy Logs" t-shirt when you > download Logger. Secure your free ArcSight Logger TODAY! > http://p.sf.net/sfu/arcsisghtdev2dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Roberto A. M. <rha...@ho...> - 2011-09-01 03:30:30
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Hi, I'm returning to a project I haven't worked on since version 3 of VPython. Back in the days, the following line of code self.frameScale.rotate (angle = pi/2., axis = (1.0, 0.0, 0.0), origin = (varGVMapper.CurrentObject.pos + (0,1.8,0))) used to work just fine. However, with the latest version of VPython it raises the following error: ValueError: Vectors must have length 2 or 3 What seems to be the problem? Best regards, Roberto Aguirre Maturana. -- Using Opera's revolutionary email client: http://www.opera.com/mail/ |
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From: Bruce S. <Bru...@nc...> - 2011-08-31 14:32:38
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Thanks! Bruce Sherwood On Wed, Aug 31, 2011 at 6:28 AM, Symion <kn...@ip...> wrote: > I have just upgraded my computer and apparently my address wasn't quite > right. > So I'm not sure if the original message was sent! > > Here it is again. just in case. > > I think I have found a small bug in the documentation. > > When using visual docs: > file:///C:/Python27/Lib/site-packages/visual/docs/visual/index.html > > clicking on Visual license option sends me to: > file:///C:/Python27/Lib/site-packages/visual/docs/visual/license.txt > > However, license.txt exists in: > file:///C:/Python27/Lib/site-packages/visual/license.txt > > Cheers > > > ------------------------------------------------------------------------------ > Special Offer -- Download ArcSight Logger for FREE! > Finally, a world-class log management solution at an even better > price-free! And you'll get a free "Love Thy Logs" t-shirt when you > download Logger. Secure your free ArcSight Logger TODAY! > http://p.sf.net/sfu/arcsisghtdev2dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > > |
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From: Symion <kn...@ip...> - 2011-08-31 12:17:48
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I have just upgraded my computer and apparently my address wasn't quite right. So I'm not sure if the original message was sent! Here it is again. just in case. I think I have found a small bug in the documentation. When using visual docs: file:///C:/Python27/Lib/site-packages/visual/docs/visual/index.html clicking on Visual license option sends me to: file:///C:/Python27/Lib/site-packages/visual/docs/visual/license.txt However, license.txt exists in: file:///C:/Python27/Lib/site-packages/visual/license.txt Cheers |
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From: Aaron M. <mav...@gm...> - 2011-08-29 22:42:15
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On Mon, Aug 29, 2011 at 6:24 PM, Bruce Sherwood <Bru...@nc...> wrote: > I don't understand this description of making a display invisible and > then visible. What I thought would happen is what does happen: Setting > display invisible just makes it invisible, doesn't delete it, and then > later making it visible again makes it visible again, with all of its > objects intact. Oh? Could be a bug specific to my setup then (Gentoo Linux, Python 2.7.1, Visual 5.4)? Maybe something at the OpenGL level? >>> import visual >>> visual.sphere() <vis.primitives.sphere object at 0xf4d0a8> >>> visual.scene.visible = False >>> visual.scene.visible = True >>> visual.scene.objects (<vis.primitives.sphere object at 0xf4d0a8>,) When I do the above, I end up with a blank window. As you can see, visual.scene is not deleted and it still has a reference to the sphere, but I am definitely not seeing a sphere in the window. :) Let me know if you need any other information from me. -- Aaron Mavrinac www.mavrinac.com |
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From: Bruce S. <Bru...@nc...> - 2011-08-29 22:24:47
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I don't understand this description of making a display invisible and then visible. What I thought would happen is what does happen: Setting display invisible just makes it invisible, doesn't delete it, and then later making it visible again makes it visible again, with all of its objects intact. Bruce Sherwood On Mon, Aug 29, 2011 at 1:44 PM, Aaron Mavrinac <mav...@gm...> wrote: > On Thu, Aug 25, 2011 at 8:04 AM, Ben Axelrod <be...@be...> wrote: > >> 2. is there a way to programatically close the visual python window? > > The visual.ui.display object has a 'visible' property also; setting > display.visible = False closes the window. > > Strangely, however, display.visible.objects continues to refer to all > previously visible objects, yet setting display.visible = True does > not bring them back (and even attempting to manually make them visible > via these references doesn't appear to work). Thus, it is probably > prudent to at least do the above "clearing" if you're going to do > this, as it is evidently leaky otherwise. > > -- > Aaron Mavrinac > www.mavrinac.com > |
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From: Aaron M. <mav...@gm...> - 2011-08-29 19:44:33
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On Thu, Aug 25, 2011 at 8:04 AM, Ben Axelrod <be...@be...> wrote:
> 1. is there a way to delete all objects in the scene? i don't see a
> scene.clear() type of function.
The visual.ui.display object (by default, the active one is
visual.scene) maintains a tuple with references to all visible objects
called (oddly enough) 'objects'. You can clear the scene by making
them all invisible.
for obj in visual.scene.objects:
obj.visible = False
If there are no external references to the objects, since 'objects'
only refers to *visible* objects, this will also (I think) remove the
last reference and the objects will be GC'd by Python, so this
shouldn't be leaky.
> 2. is there a way to programatically close the visual python window?
The visual.ui.display object has a 'visible' property also; setting
display.visible = False closes the window.
Strangely, however, display.visible.objects continues to refer to all
previously visible objects, yet setting display.visible = True does
not bring them back (and even attempting to manually make them visible
via these references doesn't appear to work). Thus, it is probably
prudent to at least do the above "clearing" if you're going to do
this, as it is evidently leaky otherwise.
--
Aaron Mavrinac
www.mavrinac.com
|
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From: Adam O H. <aha...@um...> - 2011-08-29 15:52:30
|
Hi all, Is there away to import Visual Python into the Sage (http://www.sagemath.org/) which uses Python as its language? Regards, Adam Hausknecht Professor Adam O. Hausknecht Department of Mathematics UMass Dartmouth 285 Old Westport Road North Dartmouth, MA 02747 Office: Arts and Sciences 394B Email: aha...@um... Phone: 508-999-8322 |
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From: Samuel T. S. <arc...@gm...> - 2011-08-29 13:45:06
|
as I said before... it was not my intention. linkedin search throught my contacts and send this e-mail it was a newbie error when I try to operate this service... once more, sorry for the trouble Em 29 de agosto de 2011 10:38, Anton Hvornum <ant...@gm...>escreveu: > I'm not used to mailing lists but spamming your personal crap on a mailing > list can not be well met? > > ---------- Forwarded message ---------- > From: Samuel Teixeira Santos <arc...@gm...> > Date: 2011/8/29 > Subject: [Visualpython-users] Faça parte da minha rede no LinkedIn > To: vis...@li... > > > LinkedIn > > Eu gostaria de adicioná-lo à minha rede profissional no LinkedIn. > -Samuel Teixeira > Samuel Teixeira Santos > Analista B na Embrapa Cerrados > Brasília e redondezas, Brasil > > © 2011, LinkedIn Corporation > > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > > > > > ------------------------------------------------------------------------------ > EMC VNX: the world's simplest storage, starting under $10K > The only unified storage solution that offers unified management > Up to 160% more powerful than alternatives and 25% more efficient. > Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > > -- Falou! Samuel Teixeira Santos サントスサムエル テイェイラ * P*ost *S*criptum: Por favor, ao encaminhar as mensagens "globais"(não direcionadas somente a minha pessoa): 1. *Apague* o *meu e-mail* e o meu *nome* no corpo da mensagem. 2. *Apague* também qualquer *endereço de e-mail* e *nome* que esteja no corpo da mensagem 3. Inclua *seus destinatários* apenas na opção de *cópia oculta (Cco ou Bcc) *. Agindo assim *podemos* dificultar a disseminação de vírus, spams e banner. Acho que vale a pena tentar. |
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From: Anton H. <ant...@gm...> - 2011-08-29 13:38:46
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I'm not used to mailing lists but spamming your personal crap on a mailing list can not be well met? ---------- Forwarded message ---------- From: Samuel Teixeira Santos <arc...@gm...> Date: 2011/8/29 Subject: [Visualpython-users] Faça parte da minha rede no LinkedIn To: vis...@li... LinkedIn Eu gostaria de adicioná-lo à minha rede profissional no LinkedIn. -Samuel Teixeira Samuel Teixeira Santos Analista B na Embrapa Cerrados Brasília e redondezas, Brasil © 2011, LinkedIn Corporation _______________________________________________ Visualpython-users mailing list Vis...@li... https://lists.sourceforge.net/lists/listinfo/visualpython-users |
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From: Samuel T. S. <arc...@gm...> - 2011-08-29 12:30:49
|
sorry It's was not my intention. I'm a newbie on linkedln ignore please Em 29 de agosto de 2011 09:28, Samuel Teixeira Santos <arc...@gm...>escreveu: > LinkedIn > > Eu gostaria de adicioná-lo à minha rede profissional no LinkedIn. > -Samuel Teixeira > Samuel Teixeira Santos > Analista B na Embrapa Cerrados > Brasília e redondezas, Brasil > > Confirme que você conhece Samuel Teixeira<https://www.linkedin.com/e/-y6d2w7-grxfbv5l-22/isd/4010238027/U7G2uOot/EML-invg_59/> > > © 2011, LinkedIn Corporation > > > ------------------------------------------------------------------------------ > EMC VNX: the world's simplest storage, starting under $10K > The only unified storage solution that offers unified management > Up to 160% more powerful than alternatives and 25% more efficient. > Guaranteed. http://p.sf.net/sfu/emc-vnx-dev2dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > > -- Falou! Samuel Teixeira Santos サントスサムエル テイェイラ * P*ost *S*criptum: Por favor, ao encaminhar as mensagens "globais"(não direcionadas somente a minha pessoa): 1. *Apague* o *meu e-mail* e o meu *nome* no corpo da mensagem. 2. *Apague* também qualquer *endereço de e-mail* e *nome* que esteja no corpo da mensagem 3. Inclua *seus destinatários* apenas na opção de *cópia oculta (Cco ou Bcc) *. Agindo assim *podemos* dificultar a disseminação de vírus, spams e banner. Acho que vale a pena tentar. |
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From: Samuel T. S. <arc...@gm...> - 2011-08-29 12:28:06
|
LinkedIn ------------ Eu gostaria de adicioná-lo à minha rede profissional no LinkedIn. -Samuel Teixeira Samuel Teixeira Santos Analista B na Embrapa Cerrados Brasília e redondezas, Brasil Confirme que você conhece Samuel Teixeira Santos https://www.linkedin.com/e/-y6d2w7-grxfbv5l-22/isd/4010238027/U7G2uOot/ -- (c) 2011, LinkedIn Corporation |
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From: Ben A. <be...@be...> - 2011-08-25 12:28:32
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2 questions: 1. is there a way to delete all objects in the scene? i don't see a scene.clear() type of function. 2. is there a way to programatically close the visual python window? Thanks, -Ben |
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From: Bruce S. <Bru...@nc...> - 2011-08-15 19:51:35
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There's a bug in the make_trail option for leaving a trail when an object moves. Turns out that you have to update pos for the trail to be generated; updating just pos.x doesn't work: ball = sphere(make_trail = True) x = .01 ball.pos.x += x # does not leave a trail ball.pos += vector(x,0,0) # this works correctly Bruce Sherwood |
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From: Bruce S. <Bru...@nc...> - 2011-08-11 04:09:18
|
There isn't a true text-editing object in VPython. The closest
approximation is this routine found in the documentation on keyboard
events:
from visual import *
prose = label() # initially blank text
while True:
if scene.kb.keys: # event waiting to be processed?
s = scene.kb.getkey() # get keyboard info
if len(s) == 1:
prose.text += s # append new character
elif ((s == 'backspace' or s == 'delete') and
len(prose.text)) > 0:
prose.text = prose.text[:-1] # erase letter
elif s == 'shift+delete':
prose.text = '' # erase all text
Of course there is also the ability to use Python to accept input that
appears in the Python Shell window.
Bruce Sherwood
On Wed, Aug 10, 2011 at 7:25 PM, Dan Aldrich <dal...@ea...> wrote:
> Is there a text box available in visual to allow user to enter data?
> I saw the text box, but got the impression it was only for display.
>
> Thanks,
> -d
|
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From: Dan A. <dal...@ea...> - 2011-08-11 01:25:16
|
Is there a text box available in visual to allow user to enter data? I saw the text box, but got the impression it was only for display. Thanks, -d |
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From: Bruce S. <Bru...@nc...> - 2011-08-10 21:22:20
|
Very attractive, Aaron! Thanks for showing this to us. Bruce Sherwood On Wed, Aug 10, 2011 at 9:29 AM, Aaron Mavrinac <mav...@gm...> wrote: > Hi all, > > I recently posted a screencast showcasing some software from my lab at > the University of Windsor, which makes heavy use of Visual as an > interactive interface. I thought it might be of some interest to the > community. > > http://www.youtube.com/watch?v=M-l79fkmmmA > > If you're interested to see how I'm doing some of the tricks with > Visual (and there are actually a number of them I didn't show in the > video), have a look at our codebase on GitHub. And, by all means, if > you can suggest improvements on the interface side -- or better yet, > hit me with a patch -- please do! > > https://github.com/ezod/adolphus > > Thanks for the great work on Visual. > > -- > Aaron Mavrinac > www.mavrinac.com > > ------------------------------------------------------------------------------ > uberSVN's rich system and user administration capabilities and model > configuration take the hassle out of deploying and managing Subversion and > the tools developers use with it. Learn more about uberSVN and get a free > download at: http://p.sf.net/sfu/wandisco-dev2dev > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Aaron M. <mav...@gm...> - 2011-08-10 15:29:32
|
Hi all, I recently posted a screencast showcasing some software from my lab at the University of Windsor, which makes heavy use of Visual as an interactive interface. I thought it might be of some interest to the community. http://www.youtube.com/watch?v=M-l79fkmmmA If you're interested to see how I'm doing some of the tricks with Visual (and there are actually a number of them I didn't show in the video), have a look at our codebase on GitHub. And, by all means, if you can suggest improvements on the interface side -- or better yet, hit me with a patch -- please do! https://github.com/ezod/adolphus Thanks for the great work on Visual. -- Aaron Mavrinac www.mavrinac.com |
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From: Guy K. K. <guy...@au...> - 2011-08-09 23:22:37
|
On Mon, 08 Aug 2011 2:36:06 PM Samuel Teixeira Santos wrote: > I would like to know if it's possible to do vpython use gpu > and if there is more about performance. I suppose you'd get the biggest chunk of speedup already by using hardware accelerated 3D graphics through OpenGL. The majority of other operations in the core VPython are (I assume) mostly to manage the scene content, and therefore not really suitable for accelerating using GPGPU code (like NVidia CUDA). I've done some comparison in rendering through VPython with the visual "mockery module" from Mayavi2, and VPython is already blazingly fast. Part of that is due to accessing the accelerated 3D features directly, rather than basing the code on the VTK abstraction as Mayavi2 does (but Mayavi has got good reasons for that, too). Hope that helps, Guy -- Guy K. Kloss School of Computing + Mathematical Sciences Auckland University of Technology Private Bag 92006, Auckland 1142 phone: +64 9 921 9999 ext. 5032 eMail: Guy...@au... |
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From: Bruce S. <Bru...@nc...> - 2011-08-08 14:41:04
|
VPython achieves rather good performance because most of the Visual module is written in C++ for speed. The GPU is used to some extent, especially for textures/materials. Bruce Sherwood 2011/8/7 Samuel Teixeira Santos <arc...@gm...>: > hi, my name is Samuel > I newbie on vpython. > I would like to know if it's possible to do vpython use gpu > and if there is more about performance. > thanks > > -- > Falou! > > Samuel Teixeira Santos > サントスサムエル テイェイラ > > > Post Scriptum: > > Por favor, ao encaminhar as mensagens "globais"(não direcionadas somente a > minha pessoa): > 1. Apague o meu e-mail e o meu nome no corpo da mensagem. > 2. Apague também qualquer endereço de e-mail e nome que esteja no corpo da > mensagem > 3. Inclua seus destinatários apenas na opção de cópia oculta (Cco ou Bcc). > > Agindo assim podemos dificultar a disseminação de vírus, spams e banner. > Acho que vale a pena tentar. > > > ------------------------------------------------------------------------------ > BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA > The must-attend event for mobile developers. Connect with experts. > Get tools for creating Super Apps. See the latest technologies. > Sessions, hands-on labs, demos & much more. Register early & save! > http://p.sf.net/sfu/rim-blackberry-1 > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > > |
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From: Samuel T. S. <arc...@gm...> - 2011-08-08 02:36:13
|
hi, my name is Samuel I newbie on vpython. I would like to know if it's possible to do vpython use gpu and if there is more about performance. thanks -- Falou! Samuel Teixeira Santos サントスサムエル テイェイラ * P*ost *S*criptum: Por favor, ao encaminhar as mensagens "globais"(não direcionadas somente a minha pessoa): 1. *Apague* o *meu e-mail* e o meu *nome* no corpo da mensagem. 2. *Apague* também qualquer *endereço de e-mail* e *nome* que esteja no corpo da mensagem 3. Inclua *seus destinatários* apenas na opção de *cópia oculta (Cco ou Bcc) *. Agindo assim *podemos* dificultar a disseminação de vírus, spams e banner. Acho que vale a pena tentar. |
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From: Bruce S. <Bru...@nc...> - 2011-08-06 05:08:24
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This is essentially a Python question, not a VPython question. Like other programming languages, Python can read data files. To construct 3D images from the data you probably will want to use the VPython "faces" object. You may find it convenient to use the platform-independent file dialog boxes provided by VPython for selecting a file. In the VPython documentation see "Read/Write Files" on the pull-down menu "Work with objects". Bruce Sherwood On Wed, Aug 3, 2011 at 10:57 PM, Andreas Horn <ma...@an...> wrote: > Hi there, > > I am very new to vPython and have the following question: > Would it be possible somehow to three-dimensionally display Nifti-Images via NiBabel in 3D using vPython? Nifti is a 3d-file type we use in Neuroscience. > Where would I start? Is there some way to extract 3D-Information from external files in vPython at all? > > Thank you so much for your help! > > Yours, sincerely, Andreas Horn > ------------------------------------------------------------------------------ > BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA > The must-attend event for mobile developers. Connect with experts. > Get tools for creating Super Apps. See the latest technologies. > Sessions, hands-on labs, demos & much more. Register early & save! > http://p.sf.net/sfu/rim-blackberry-1 > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Bruce S. <Bru...@nc...> - 2011-08-06 04:52:53
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As the documentation states: "make_trail Must be mentioned when creating the moving object; if False, no points will be added to the trail until you say ball.make_rail = True (assuming the moving object is named ball)" It's possible that this could be changed, but it's not easy, which is why the documentation says what it does. Bruce Sherwood On Fri, Aug 5, 2011 at 11:48 AM, Mark Hammond <mha...@st...> wrote: > Some of my students have noticed that the new make-trail feature doesn't > behave like other object attributes in the sense that they cannot use: > > ball.make-trail = True > > to modify a pre-existing object so that it includes a trail. This means > make-trail is different than pos or radius or color. Is there a reason for > this? > > Mark Hammond > > > > ------------------------------------------------------------------------------ > BlackBerry® DevCon Americas, Oct. 18-20, San Francisco, CA > The must-attend event for mobile developers. Connect with experts. > Get tools for creating Super Apps. See the latest technologies. > Sessions, hands-on labs, demos & much more. Register early & save! > http://p.sf.net/sfu/rim-blackberry-1 > _______________________________________________ > Visualpython-users mailing list > Vis...@li... > https://lists.sourceforge.net/lists/listinfo/visualpython-users > |
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From: Mark H. <mha...@st...> - 2011-08-05 18:06:25
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Some of my students have noticed that the new make-trail feature doesn't behave like other object attributes in the sense that they cannot use: ball.make-trail = True to modify a pre-existing object so that it includes a trail. This means make-trail is different than pos or radius or color. Is there a reason for this? Mark Hammond |
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