Re: tkemc at a socket

[Till Franitza <till.franitza-at-isw.uni-stuttgart.de>]

Hallo!
Thank you for all the explications!
We are currentliy building up a Linapod-Machine (see jpg) using both EMC and ISG.
I have three Students working on this.
As one of them wants to work on User-Interfaces, i thought TkEMC could be a god
thing to look at. Now we have agreed to do it in Visual Basic. This is because of
the circumstances and the background here at ISG and our "Windows"-world.
Nevertheless, the comm-principles that underly your approaches are quite interesting
and might have to be discussed in the students work.
Till

Fred Proctor wrote:

> Till Franitza wrote:
>
> > Whatis the format of the information that can be accessed from the
> > tcp/ip-socket by for example Tcl/tk or (i suppose, this is
> > similar),java?
> > I expected this to be the easiest way to attach a user-interface to EMC.
>
> As Will replied, using Tcl/Tk to operate on the raw socket data is probably the
> MOST DIFFICULT way to attach a user interface to EMC. If you want to use Tcl/Tk,
> use emcsh, the EMC version of wish, as we did in tkemc.tcl. This extends wish
> with some C++ code for dealing with NML, the comm layer that handles sockets or
> shared memory for you.
>
> As far as Java is concerned, Will replied that the CodeGen utility generates
> Java code for dealing with NML, so you don't have to. Again, the MOST DIFFICULT
> way to attach a Java user interface is to write Java code that deals with the
> socket data directly. The easiest is to call the Java functions we already wrote
> for that.
>
> If you wanted to write a new GUI, using say Perl/Tk or Python/Tk, it would be
> best to do what we did with Tcl/Tk:
>
> 1. write C++ code for dealing with NML commands and status (see
> emc/src/emctask/emcsh.cc for an example).
>
> 2. Load this code into your new language interpreter. I don't know how this
> works in Perl or Python, but it's the same as how these languages load in C
> modules.
>
> 3. Write the Perl or Python script that calls the EMC functions you built and
> loaded in.
>
> --Fred

--
Dipl.-Ing. Till Franitza
Institute for Control Engineering of Machine Tools and
Manufacturing Units (ISW)
c.o. FISW
Rosenbergstr. 28
D- 70174 Stuttgart
Germany

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email: till.franitza-at-isw.uni-stuttgart.de
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