tkEngine

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Is an animated display of an internal combustion engine.  There are 3 different types of engines that are selectable by holding down the mouse button.  The 3 different types are Flat4, Inline4 and V6.  The default is the Inline4.

This program uses 3 animated gif images from an article on HowStuffWorks.com to display then engine in motion.  The program also figures out the maximum frame rate for the images.----
[Jeff Smith] 2020-11-27 : Below is an online demo using [CloudTk]. This demo runs "tkEngine" in an Alpine Linux Docker Container. It is a 27.4MB image which is made up of Alpine Linux + tclkit + tkEngine.kit + libx11 + libxft + fontconfig + ttf-linux-libertine. It is run under a user account in the Container. The Container is restrictive with permissions for "Other" removed for "execute" and "read" for certain directories.
'''Please Note''' : This demo has a run time of 2 minutes.

<<inlinehtml>>

<iframe height="400" width="500" src="https://cloudtk-app.tcl-lang.org/cloudtk/VNC?session=new&Tk=tkEngine" allowfullscreen></iframe>

<<inlinehtml>>

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[tkengine11]

[http://www.interq.or.jp/japan/s-imai/tcltk/images/tkengine11.gif]

Version 1.1 is available here [http://www.interq.or.jp/japan/s-imai/tcltk/download/tkengine11.zip].
 # TkEngine Program V1.1
 # by Satoshi Imai
 # 1.1, 07-Jul-2002 modified by Fuhito Suguri
 # http://www.interq.or.jp/japan/s-imai/tcltk/tkengine.html 
 # Based on a article by Marshall Brain @ HowStuffWorks.com
 # http://www.howstuffworks.com/engine2.htm

The Homepage for tkEngine[http://www.interq.or.jp/japan/s-imai/tcltk/tkengine.html] is in japanese but a translated version is available through bablefish here [http://babelfish.altavista.com/babelfish/urltrurl?lp=ja_en&url=http://www.interq.or.jp/japan/s-imai/tcltk/tkengine.html].
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[MPJ] A reformatted version with the frame/sec in the title bar and scale to fit the [PocketPC] is available here [http://mywebpages.comcast.net/jakeforce/iTkEngine.tcl].  Note you still need the 3 images from the above version: flat4.gif, inline4.gif, v6.gif.

Here are the shots of it running on my Dell Axim (arm 400Mhz w/ PocketPC 2002)

[http://mywebpages.comcast.net/jakeforce/tkengine_off.jpg] : [http://mywebpages.comcast.net/jakeforce/tkengine_on.jpg]

''Update'' (25-09-03): The same code and the same Dell Axim but using the updated PocketPC 2003 edition and the 8.4.4 port of TclTk.  I now get a frame rate of 5 fps vs 3 fps on the 2002 (and its noticeable on other TclTk apps too).

[http://mywebpages.comcast.net/jakeforce/tkengine2003.jpg]

And here a picture of this code running on my desktop (1GHz ~ notice the difference in frame rates vs the PocketPC).

[http://mywebpages.comcast.net/jakeforce/tkengine.jpg]