I've created several animations using MetaPost/ConTeXt, and I have also created a webpage with these animations. The URL to the page is http://www.tlhiv.org/animations/ Feedback is appreciated, and if there is a particular animation that you would like to see included, let me know and I will attempt to code them up in MetaPost, provide the source code, and include them on the webpage. Troy Henderson
Dear Troy,
I just looked up your animations webpage: congratulations for the beautiful work you have done, and thanks for sharing.
I played a little bit with the hypocycloid source file you sent some time ago and found it useful for other situations as well.
Would it be possible to have the source files of the other examples you show on the webpage
http://www.tlhiv.org/animations/
Also, if I may suggest something, an animation like the one for Riemann sums would be very intersting for illustrating the Lebesgue integrals in order to show to students what is going on.
Best wishes for the New Year, and best regards: OK
On 28 déc. 2012, at 20:41, Troy Henderson
I've created several animations using MetaPost/ConTeXt, and I have also created a webpage with these animations. The URL to the page is
http://www.tlhiv.org/animations/
Feedback is appreciated, and if there is a particular animation that you would like to see included, let me know and I will attempt to code them up in MetaPost, provide the source code, and include them on the webpage.
Troy Henderson ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________
On 12/28/2012 8:41 PM, Troy Henderson wrote:
I've created several animations using MetaPost/ConTeXt, and I have also created a webpage with these animations. The URL to the page is
http://www.tlhiv.org/animations/
Feedback is appreciated, and if there is a particular animation that you would like to see included, let me know and I will attempt to code them up in MetaPost, provide the source code, and include them on the webpage.
There are some animated gifs at: http://en.wikipedia.org/wiki/B%C3%A9zier_curve such curves are typical for mp so maybe they qualify. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On 12/28/2012 8:41 PM, Troy Henderson wrote:
I've created several animations using MetaPost/ConTeXt, and I have also created a webpage with these animations. The URL to the page is
http://www.tlhiv.org/animations/
Feedback is appreciated, and if there is a particular animation that you would like to see included, let me know and I will attempt to code them up in MetaPost, provide the source code, and include them on the webpage.
Neat. MP -> Flash seems to work well. One thing, which you may know, gear teeth do not normally have rectangular profiles. Nowadays, they are usually involutes of a circle and formerly were usually cycloids (so the gears don't slip against each other when they turn). I don't have a reference, but google turned up http://www.cadquest.com/books/pdf/gears.pdf, which shows how to draw involute gears. Are you using the animations, or some frames perhaps, in a ConTeXt document? I usually use Mathematica for such animations, but it and its ilk are expensive, although there are other alternatives. As I'm still learning MP/Lua/ConTeXt, I'm just interested in the ways others use the system. Thanks for sharing. Michael ________________________________ This e-mail message (including any attachments) is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message (including any attachments) is strictly prohibited. If you have received this message in error, please contact the sender by reply e-mail message and destroy all copies of the original message (including attachments).
One thing, which you may know, gear teeth do not normally have rectangular profiles.
This must be what Hans was talking about.
Are you using the animations, or some frames perhaps, in a ConTeXt document?
Well, actually I'm using ConTeXt/MetaPost to generate each frame of the animation "automagically". The webpage will soon allow for downloading the source for each ConTeXt document. This generates a multi-page PDF where each page of the PDF is a frame of the animation. SWFtools (specifically, pdf2swf) can then be used to convert the PDF to SWF. Troy
On Dec 28, 2012, at 3:49 PM, Troy Henderson
Dear Troy,
The gears are much better now. However, have a look at
http://fr.wikipedia.org/wiki/Fichier:Involute_wheel.gif
and
http://fr.wikipedia.org/wiki/Engrenage
The animation for Gibbs is also very nice: thanks for sharing!
I tried the TeX file for your Gibbs phenomena animation: I could not get the same pictures as you show on your webpage. I get only one page out of 8, and the log file says several times:
unknown path q
! Improper `clip'.
<to be read again>
Best regards: OK
On 29 déc. 2012, at 03:55, Troy Henderson
Are the gears more correct now?
Troy ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________
On 12/29/2012 3:55 AM, Troy Henderson wrote:
Are the gears more correct now?
Yes, it looks better this way. I don't know how deep the tooths need to be. Probably some complex formula is needed to determine that. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On Sat, Dec 29, 2012 at 3:55 AM, Troy Henderson wrote:
Are the gears more correct now?
Better that previously, but there is still room for improvement. The teeth are too small among other things. Bonus question: independent from the gears shape (assume that it stays as it is), there is something fundamentally wrong with the animation. What is that? ;) Mojca
Op 29-12-12 16:42, Mojca Miklavec schreef:
On Sat, Dec 29, 2012 at 3:55 AM, Troy Henderson wrote:
Are the gears more correct now?
[ ... ]
Bonus question: independent from the gears shape (assume that it stays as it is), there is something fundamentally wrong with the animation. What is that? ;)
I think you draw our attention to the question: which one of the wheals is driving which one? Tom -- Tom Fossen Amersfoort Netherlands
On Sun, Dec 30, 2012 at 3:57 AM, Troy Henderson wrote:
Bonus question: independent from the gears shape (assume that it stays as it is), there is something fundamentally wrong with the animation. What is that? ;)
When fixing the teeth, I broke the direction of one of the gears. It's repaired now.
Yes, it makes more sense now. Very nice animations. Mojca
On 12/29/2012 2:02 AM, Rogers, Michael K wrote:
I thought Hans was talking about the animations of the construction of Bezier curves, which are pretty cool.
the gears were mentioned in an off-list mail Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
Hello,
2012/12/28 Hans Hagen
On 12/28/2012 8:41 PM, Troy Henderson wrote:
I've created several animations using MetaPost/ConTeXt, and I have also created a webpage with these animations. The URL to the page is
http://www.tlhiv.org/**animations/ http://www.tlhiv.org/animations/
Feedback is appreciated, and if there is a particular animation that you would like to see included, let me know and I will attempt to code them up in MetaPost, provide the source code, and include them on the webpage.
There are some animated gifs at:
http://en.wikipedia.org/wiki/**B%C3%A9zier_curvehttp://en.wikipedia.org/wiki/B%C3%A9zier_curve
such curves are typical for mp so maybe they qualify.
These images are very explicit, with metapost, it is a pleasure to get them :) Here is a first draft : http://melusine.eu.org/syracuse/metapost/animations/bezier/ Enter in the directories and click the button "swf". Jean-Michel Sarlat
participants (8)
-
Hans Hagen -
Jean-Michel Sarlat -
Mojca Miklavec -
Otared Kavian -
Peter Münster -
Rogers, Michael K -
Tom Fossen -
Troy Henderson