Braid Theory

[J. Falkink]

Nancy

No I never heard about it. I don't see the relation between particles and
threads except that lacemakers occasionaly also are making braids or plaits.
You make me curious, do you know about some clear, no too long article as an
introduction?

Jo

> -----Oorspronkelijk bericht-----
> Van: Nancy Neff [mailto:nne...@yahoo.com]
> Verzonden: maandag 26 oktober 2009 4:38
> Aan: J. Falkink
> Onderwerp: Re: [lace] terminology
>
> Jo,
>
> A related question (with which I didn't want to burden the
> Arachne folks): have you run across the area of Topology
> called Braid Theory. It was developed in the middle of the
> 20th c, and has been used primarily for particle physics and
> some for esoteric information models. I am convinced,
> however, that bobbin lace is a physical example of a braid
> theoretical model. I just don't know where to go from there...
>
> I'm not sure at all that this connection would be any use in
> your design tool project, but it seems to me somehow that it
> might be. What do you think?
>
> --Nancy

[Xara]

Hi Jo and Nancy,

i think wikipedia has a nice summary of the braid theory
http://en.wikipedia.org/wiki/Braid_theory

Greetings Christa

J. Falkink schrieb:

[Xara]

Hi all,

just found another wikipedia entry of this topic.

http://en.wikipedia.org/wiki/Braid_group

When i read this, i think Nancy is totally right. That's the
mathematical background of bobbin lace. ;)

Here the term braid is used in a more universal way, than in common
speech. With this background braid would be the right term for us. But
it also is confusing, because common use of braid let's us just think of
a braid in a strikt order of turn and cross just with 3 or 4 threads.

Sorry, i don't have any real good idea. Thank you Nancy, for showing us
that really interesting aspect of topology.

Greetings
Christa

Xara schrieb:

[Jo]

Hello spiders

I thought I could make a happy dance tonight, celebrating a new release. But
the dance is limping. I wanted to make it easier to launch, but Java
WebStart reports some denied access. So I still problems to solve.

But with a relatively new system you might give it a try. It is still an
incomplete pilot, but what it can do should now be more intuitive. The left
panels are redesigned. Just walk through the desccriptive instructions and
the corresponding part in the diagram is highlighted. Or click in the
diagram to find the corresponding description. Hover over buttons for hints,
repaint threads or replace stitches. Tell me what is wrong. Note that the
user guide is not yet updated. As the guide is in a wiki, you can help out.

You can download the new version from http://bobbinwork.googlecode.com/ If
the command "java -version" prompts with 1.6 or higher you can run the
program with the command "java -jar
YOUR/PATH/TO/BwDiagrams-rel-2.1.450.jar". On some systems you can simply
double-click the jar file. If your java version is lower, see
www.java.com/getjava/ I tested on Windows and Linux (Ubuntu). My Mac tells
me my java 1.5 is the latest and greatest though
http://developer.apple.com/java/ seems to tell there is a Java SE 6.

For the google-paranoid spiders: it is not a google application but mine, I
just happen to choose google to host it.


Jo

[Jo]

Hello spiders

I uploaded a new version that should work for up-to-date mac users. If the
command "java -version" propmts with version 1.5 or higher, you can launch

the program with the command:

java -jar "your/path/to/BwDiagrams.jar"
You can download the jar file from
http://code.google.com/p/bobbinwork/downloads

In the meantime I also translated the program into Dutch and it is ready for
translation into other languages, see
http://bobbinwork.wikispaces.com/translate+the+software

I would also like some help with further trouble shooting. Though the
program works when launched as described as above, it sould also launch with
the following link:
http://bobbinwork.googlecode.com/svn/trunk/webstart/BwDiagrams.jnlp
or tynied: http://tinyurl.com/yjt2pn9
However, in this case it might not show any diagram. I would like to know if
anybody can show any diagram when using the jnlp link.

Jo

[Jo]

Sue

A screenshot of the may version is still on
http://bobbinwork.wikispaces.com/

I was trying to talk about todays version, screenshots on
http://bobbinwork.wikispaces.com/quick+start+for+diagrams are a mix of
todays and the may version.
I looked further into it: I told the compiler to produce 1.5 code but that
does not seem to be enough. They say the compiler itself should have been
executed with the 1.5 version. So I'll have to try again.

Jo

> I've downloaded the (May) version, the new one won't run on
> my intel mac using Leopard. However it doesn't show
> anything, what is it supposed to show?

[Jo]

Hello spiders

I managed to compile it on Mac. I replaced the download link
http://bobbinwork.googlecode.com/

Jo