opentoko.org

#39 – Regular Expressions 2

companje — Sun, 11 Mar 2012 01:12:17 +0000

Location: De War Office (Kleine koppel 40)
Date: 11 march
Time: 14:00 – 19:00

Learn how to stop worrying about and start loving /\b([A-Z0-9._%+-]+@[A-Z0-9.-]+\.[A-Z]{2,4})\b/gi

We will do a OpenToko (workshop) about regular expressions. The workshop will be given by Peter Uithoven who masters this super useful and timesaving technique for searching and replacing text. It will be hosted in De War, probably in the office meeting room. The date is the 11th of march 14:00 – 19:00.

Regular Expressions provide a concise and flexible means for searching (and replacing) text. It’s basically a very compact language to describes what you are searching for. You can use it for example to find or check e-mail addresses or links, automatically add lightbox or captions to images or for scraping websites. It let’s you do a lot of mundane things you normally would need to do by hand. You can use it in most programming languages and in a lot of text editors.

An example, the following script will give you all the alt tags from img tags in html, what ever is added inside the img element.

Or if you replace ^\* (.*) with

you can create html out of lists like:
* item 1
* item 2

The plan is to give an introduction, give some nice references and tools and then freak with some practical challenges (you can provide).

Even if you’ve never used regular expressions, this workshop will teach you all you need for most purposes.

#40 – Genetic Algorithms

companje — Sun, 12 Feb 2012 19:00:32 +0000

February 12 from 20:00 till 22:00 an OpenToko workshop about Genetic Algorithms takes place at DeWar in Amersfoort. The workshop is part of the broader event entitles “using evolution” centered around genetic algorithms from a scientific, technical and artistic approach. Before the OpenToko there will be a lecture at 16:00 about the use of genetic algorithms in biological research, and an exposition of artwork made with genetic algorithms.

Genetic algorithms are computational techniques that mimic biological evolutionary processes. Applied in design fields, they can generate unpredictable form solutions and variability in answer to design goals.

The workshop will be given by Luis Fernandez who is software engineer and an artist. He is experienced in making installations with genetic algorithms.

The workshop will focus on the following aspects of genetic algorithms in art & design:

- The history and the development of this field
- How to translate the rules of evolution to rules for design
- How you can increase creativity by sometimes break and sometimes copy the rules of nature
- Because the workshop is given in the Fablab you’ll be encouraged to think about physical output.

After this general introduction we can experiment and play with some basic examples of genetic processing, wich you can adjust to you own ideas. Please bring a laptop with Processing installed, you can download processing here. We will also pay attention to the more general computation way of generic algorithm thinkin. To use this computational way of thinking will open new ways of looking at the design proces.

The cost for the workshop is up to you. You can choose how much the knowledge is worth to you. There will be a honesty box for your cash donations. You can also ask for a bill if you don’t want to pay cash. There is a limit of 20 participants for the workshop so please register below.

Date & Location
February 12th from 20:00 – 22:00.
DeWar, Kleine Koppel 40, Amersfoort

Register for the workshop
Please register here.

#38 – Webshops

companje — Sun, 29 Jan 2012 09:00:59 +0000

Binnenkort is er een OpenToko kennis-uitwisselings workshop over het beginnen van je eigen webshop. De exacte datum is nog niet bekend.

Tijdens de workshop zullen o.a. Edwin Dertien en Wouter van Ooijen hun ervaringen delen op dit gebied. Wouter heeft zelf zijn eigen webshop gebouwd en is de man achter de online electronica winkel www.voti.nl. Edwin heeft ervaring met het implementeren van het open source e-commerce systeem ZenCart.

Onderwerpen die aan bod komen:
- Hoe plaats je een webshop op je website?
- Hoe regel je betalingen (PayPal, iDEAL, Bank, CreditCard etc.)?
- Welke online diensten zijn er beschikbaar?
- Wat zijn de voor-/nadelen van zelf hosten vs. gebruiken maken van online dienst?
- Hoe hou je de administratie bij van je webshop?

Ben je nieuw met webshops leer dan tijdens deze workshop alles wat je nodig hebt om te starten. Heb je al ervaring met het opzetten van een webshop kom dan vooral ook en deel je kennis.

Wanneer:
wordt nog aangekondigd

Waar:
OpenToko.org
Kleine Koppel 40
3812 PH Amersfoort (route)
email: info@opentoko.org
website: www.opentoko.org
phone (rick): +31 (0)6 2851 6908

Aanmelden:
Registreer je hier voor de workshop.

Kosten:
Je mag zelf kiezen hoeveel je betaalt voor de workshop. We werken met waardebepaling achteraf: heb je er veel aan gehad dan betaal je meer dan wanneer je het niet nuttig zo vond. Van de opbrengst worden de sprekers betaald, de lunch en de huur van de ruimte.

Ingekomen vragen / onderwerpen:

Flattr
Molly
‘Buy this’ knop van PayPal
ZenCart

#35 Ultimaker session

companje — Thu, 29 Dec 2011 09:34:40 +0000

Wednesday 28-12-2011 – 10u-16u, OpenToko Amersfoort

Work on your own Ultimaker 3D printer or help others fixing/building/using theirs.

- email or fill in the form to register
- Costs: please make a donation afterwards

#34 Parametric SVG

companje — Thu, 29 Dec 2011 09:33:05 +0000

#35 – Parametric SVG editor workshop

Wednesday 28-12-2011 – 16u-18u, OpenToko Amersfoort
The parametric SVG editor is an online tool for construction drawings. You can create parametric SVG drawings for parts and combine existing parts into new designs. You can use the design patterns of others and contribute your own (part) designs to a template library.

- email or fill in the form to register
- Costs: please make a donation afterwards