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Re: Why not using java ?
Oscar Marquez [GTS]
Re: Why not using java ?
Wed, 28 May 1997 11:23:23 +0100 (WET DST)
Ted Harding write:
|> This looks potentially very interesting. I have a few comments on the demo
|> on the above site.
Thanks for your comments.
|> 1. The octave front-end applet (the one where only the help button works)
|> didn't work at all on my Netscape: it just froze Netscape.
At moment this is only a test applet and is very slow.
|> 2. The demo of plotting sin(x)./x was OK. I hope one can easily adjust
|> thngs like line thickness and line style, etc. I like the zoom
|> facility and the slide-bar for sliding the window along the graph.
|> Useful for time-series work and the like. A zoom-slider (to allow a
|> contuously variable zoom factor) would be a very nice addition.
I think, this is no problem to be implemented.
|> 4. It must be remembered that nothing of this kind will cope with the fact
|> that octave has (as yet) no built-in code for contour generation or
|> for surface-plotting with hidden lines, since the code for computing
|> these is not in octave but in gnuplot (or in whatever other
|> contour/surface capable package one uses instead of gnuplot -- this is
|> one reason why I like using PlotMTV which is rather good at these
...hmmm we can think how to solve this task. If octave give us the
prepared data, then it is no problem
|> 5. I did not manage to obtain any useful java code (maybe I muffed the
|> "store" operation under netscape). Is there a URL for downloading the
|> java code?
I have downloaded the java class codes on our ftp server:
|> 6. I suppose that the applets will run OK
|> Also, I only managed to run the sin(x)./x plot applet once. After I
|> had to restart netscape (due to above hang) I failed several times to
|> reload the full applet (netscape said it could not find the plotting
|> class). Maybe this is my Netscape being a bit shaky, but I'd have felt
|> better about the thing if this had not happened.
Try to get the applets from our ftp server, if you have any problem,
please, mail me about it.
|> 7. Re the low speed mentioned by Oscar Marquez: presumably it wold be
|> possible to get higher speed by running it directly under java in
|> stead of thtought Netscape?
Yes. The plot applet work fine with the appletviewer from linux, I
think on win95 too.
|> By all appearances a promising path to follow. May we hear more, please?
OK. I think in one Month we can say more about the communications with
octave, that is now the problem. We need to say octave, that the
standard input/output is now a socket, which communicates with the
applet. We need the help from John Eaton to make this possible in
Oscar W. Marquez F. Universidad de Vigo
address@hidden ETSI de Telecomunicacion
Tel. ++34-86-812 675 Lagoas-Marcosende
Fax. ++34-86-812 116 E-36280 Vigo - Spain