<div>Hi Will,</div><div><br></div>I have just now had a look at slicer and see what you mean.<div><br></div><div>Regards</div><div> Andrew</div><div><br><br><div class="gmail_quote">On Thu, Jul 28, 2011 at 1:36 PM, Will Schroeder <span dir="ltr"><<a href="mailto:will.schroeder@kitware.com">will.schroeder@kitware.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Andrew-<br>
<br>
I see your point and agree, I'm thinking that applications like<br>
Slicer, which at one time had large dependencies on Tcl, would not be<br>
happy (although this is fast changing). So if this were to occur it<br>
would have to be staged over a very long time, probably after some of<br>
us older guys bite the big one :-)<br>
<br>
W<br>
<div><div></div><div class="h5"><br>
On Wed, Jul 27, 2011 at 10:10 PM, Andrew Maclean<br>
<<a href="mailto:andrew.amaclean@gmail.com">andrew.amaclean@gmail.com</a>> wrote:<br>
> Hi All,<br>
> This is just for discussion and it was prompted by a throw-away comment by<br>
> someone in the last VTK ARB Meeting regarding TCL.<br>
> So:<br>
> In the beginning ... when VTK was just a baby (and a lot of you at Kitware<br>
> were still in primary school!), TCL was really essential and useful because<br>
> at that time there were no other rapid development/prototyping languages<br>
> that were cross-platform and easy to use. So at that time (late 90's early<br>
> 2000's) TCL was really great in that you could rapidly prototype something<br>
> and then code in C++. Yes I know that Python was around at that time but TCL<br>
> usage was more widespread.<br>
> Now... we have Python and using Python is really convenient because the<br>
> transition to C++ and or Java is relatively simple.<br>
> I know that there are still tests and examples that use TCL in the VTK tree<br>
> but lots of these have moved to C++.<br>
> Also if you look in wikiexamples, there are 6 tcl examples vs around 59<br>
> python examples, 11 java and lots and lots of C++ examples. So to me this is<br>
> saying that TCL is fading into obscurity. You could argue on<br>
> these figures that Java is not doing so well either but good Java<br>
> programmers can easily convert C++ to Java so I suspect Java programmers<br>
> just use the C++ examples.<br>
> From my own experience I have found it is far simpler to prototype in Python<br>
> and then develop in C++. I used to use TCL (because nothing else was around<br>
> in the old days), but switched to Python because I found that students and<br>
> coders were more able to use Python than TCL mainly because of syntax<br>
> issues. The main point is that the syntax of Python is modern but TCL is<br>
> not.<br>
> Is there a really strong reason for supporting TCL in the future?<br>
><br>
> I have no issues with Java and Python and our efforts should go to<br>
> supporting these two languages. I acknowledge that there is an Achilles heel<br>
> in Python in that Python 3+ is different from 2.x but you can work around<br>
> these issues and I am seeing some development now moving off 2.x to version<br>
> 3.x. However the Python 3.x api seems to be closer to C++ than the 2.x<br>
> versions so in the future more programmers will move to it.<br>
> Regards<br>
> Andrew<br>
> --<br>
> ___________________________________________<br>
> Andrew J. P. Maclean<br>
> Australian Centre for Field Robotics (ACFR)<br>
> The Rose Street Building J04<br>
> The University of Sydney 2006 NSW<br>
> AUSTRALIA<br>
> Ph: <a href="tel:%2B61%202%209351%203283" value="+61293513283">+61 2 9351 3283</a><br>
> Fax: <a href="tel:%2B61%202%209351%207474" value="+61293517474">+61 2 9351 7474</a><br>
> URL: <a href="http://www.acfr.usyd.edu.au/" target="_blank">http://www.acfr.usyd.edu.au/</a><br>
> ___________________________________________<br>
><br>
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><br>
<font color="#888888"><br>
<br>
<br>
--<br>
William J. Schroeder, PhD<br>
Kitware, Inc.<br>
28 Corporate Drive<br>
Clifton Park, NY 12065<br>
<a href="mailto:will.schroeder@kitware.com">will.schroeder@kitware.com</a><br>
<a href="http://www.kitware.com" target="_blank">http://www.kitware.com</a><br>
<a href="tel:%28518%29%20881-4902" value="+15188814902">(518) 881-4902</a><br>
</font></blockquote></div><br><br clear="all"><br>-- <br>___________________________________________<br>Andrew J. P. Maclean<br>Australian Centre for Field Robotics (ACFR)<br>The Rose Street Building J04<br>The University of Sydney 2006 NSW<br>
AUSTRALIA<br>Ph: +61 2 9351 3283<br>Fax: +61 2 9351 7474<br>URL: <a href="http://www.acfr.usyd.edu.au/" target="_blank">http://www.acfr.usyd.edu.au/</a><br>___________________________________________<br>
</div>