All posts by Rolf van Gelder

Realtime Quakes (2019)

dataviz, earthquake, earthquakes, p5js, processing, realtime, realtime quakes, usgs

Realtime Quakes is a real time visualization of earthquakes that are happening anywhere in the world.

As source it uses a live stream from the USGS (United States Geological Survey).

The actual quakes (from the last hour) are marked on a Google Map.
As soon as a new quake has been detected, the map updates itself and centers around this most recent quake.

The markers are color coded: the redder the marker the bigger the magnitude of the quake.

You need to be patient: on average the earthquakes happen every 6-15 minutes.

Technology

Programmed with P5JS, a language for creative coding, based on JavaScript.
The live version below is embedded using the WordPress plugin ‘Responsive P5JS for WP‘

The Artwork (live)

TwitCloud (2017-2019)

eindhoven, new media art, new social media art, processing, rolf van gelder, tweets, twitter, twitter4j, word cloud, wordcram

TwitCloud is a New (Social) Media Artwork by Rolf van Gelder

TwitCloud is a live visualisation of what is going on in the world.

It uses a real-time Twitter API (‘twitter4J‘).

A random topic will be chosen from the top trending topics list.

It uses the trending topics from the following countries:
WORLD, US, NL, UK, DE, TR or RU.

Next, it will get the most recent tweets for the chosen random trending topic.

The text from the tweets will be split up in words and visualized in a so-called ‘word cloud‘.

Software

Processing
twitter4J
WordCram

TweetMood (2019)

AI, artificial intelligence, codebird, interactive, ml5, mood, new media art, new social media art, p5js, sentiment, smiley, tweetmood, twitter

TweetMood is an interactive New (Social) Media Artwork by Rolf van Gelder.

Enjoy the artwork here!

The artwork tries to determine, real-time, the current mood of the world.

For accomplishing that, it gets the latest tweets from Twitter (more or less at random) and have them classified by an Artificial Intelligence Model (ML5).

The AI model has been trained using 20,000 movie reviews.
Movies with a high rating are apparently ‘good’ (‘positive’); low ratings are ‘bad’ (‘negative’).

The tweets are ‘rated’ by the AI model. It returns a value that ranges from 0 to 999. 0 is very negative, 999 is very positive.

Based on that value, a happy or sad smiley is generated.

The images on the ‘ticker’ bar are the profile images of the ‘tweeter’.

The background color of the ‘ticker’ represents the ‘average mood’.

Technology

TweetMood has been written using P5JS.
It uses the CodeBird library for fetching the tweets and ML5 for the Artificial Intelligence model.

Enjoy the artwork!

ARTWORK

Twosaic (2019)

eindhoven, new media art, new social media art, processing, rolf van gelder, tweets, twitter, twitter4j, twosaic

Twosaic (‘Twitter Mosaic’) is an interactive New (Social) Media Artwork by Rolf van Gelder

Twosaic is a live visual animation of what is going on in the world.

It uses a real-time Twitter API (‘twitter4J‘).

A random topic will be chosen from the top trending topics list.

It uses the trending topics from the following countries:
WORLD, US, NL, UK, DE, TR or RU

In the tweets of the chosen topic it tries to find a ‘base image’, a suitable image to use in the artwork.

If a base image has been found, user avatars of the most recent tweets for that topic will be fetched

Then it generates a mosaic by rendering the base image with the avatar thumbnails.

It’s fully real-time: every new tweet that comes in for the chosen topic, will immediately be included in the mosaic.

The text of the new incoming tweets will be shown in a scrolling ‘ticker’.

Software

Processing
twitter4J

ARTWORK

Realtime History (2018)

aging, generative sound, new media art, processing, realtime history, rolf van gelder, timelapse

‘Realtime History’ is a New Media Artwork by Rolf van Gelder.

It’s a work about aging and memories.

Live camera captures are being time lapsed in real-time.

The software selects a pixel at random and replaces it with the current capture pixel at the same location.

So, it constantly mixes the current image with the past images, which generates the feeling of real-time aging.

During the animation, sounds are generated, based on the pixels being updated.

Software

processing

Hardware

personal computer (Windows, Mac or Unix)
projector (or monitor)
sound system

ARTWORK

#loveU #hateU (2017)

#loveU #hateU, bot, hateu, jana astanov, loveu, new media art, new social media art, node.js, processing, rolf van gelder, twitter

#loveU #hateU is a New (Social) Media Artwork by Jana Astanov & Rolf van Gelder

#loveU #hateU is a live Twitter feed, showing all tweets with the hashtags #loveU or #hateU.

It’s roulating the tweets in the grid: a new tweet will be added in the upper left corner, the tweet in the lower right corner (= oldest tweet) will disappear.

The tweeter, the time stamp of the tweet, the geographical location (if available) and the actual tweet are shown.

It tries to prove love is still stronger than hatred… (we hope that’s still the case!)

Technology

processing
twitter4j

The second component of this art project is the ‘#loveU2 BOT’.

Every tweet containing one of the two hashtags (#loveU or #hateU) will get a tweet back:

‘#loveU‘ tweets will get a tweet with the hashtag ‘#loveU2‘ and an attached image.

‘#hateU‘ tweets will get a tweet with the hashtags ‘#dontHateU‘ and ‘#loveU2‘ with a different attached image.

Technology
node.js
twit

ALL YOU NEED IS LOVE!

WELCOME

About Rolf

New media artist, mixed media painter, software engineer and web developer born in 1958, Eindhoven, NL.
Living and working in Eindhoven, NL.

From 1980 till 2006 he was active as a mixed media painter.
You can see his paintings HERE
(The paintings won’t be featured on this website; this site is focusing on his new media artworks)

Contact

cell: +31-6-22 66 3193
mail:

Websites

CAGE online gallery (est. 1995): cage.nl
CAGE web design company (est. 2000): cagewebdev.com

Curriculum Vitae

Click HERE to see Rolf’s full CV, including a list with all of his 60+ international exhibitions (PDF-format)

EXHIBITION

SjansMachine v3.1 @ Eindhovens Film Festival, Eindhoven, NL (2014)

baltan, broet, broet film platform, carmin karasic, eindhoven, eindhovens film festival, natlab, new media installation, olga mink, rolf van gelder, sjansmachine, Strijp-S, strp-s, the netherlands

Date

Saturday November 29, 2014 – 9:00pm till 12:00am (during the EFF party)

Location

NATLAB basement, Kastanjelaan 500, Eindhoven, NL

Entrance

Free!

The SjansMachine was shown at the Eindhovens Film Festival 2014.

SjansMachine @ Eindhovens Film Festival (catalogue)

Impressions

Organized by

Broet, Film Platform, Eindhoven

SjansMachine v4.0 @ Frequentie Strijp-S, Eindhoven, NL (2014)

baltan, carmin karasic, eindhoven, Frequentie Strijp-S, natlab, new media, new media installation, olga mink, rolf van gelder, selfie, selfies, sjansmachine, Strijp-S, strp-s, the netherlands

Date

Sunday September 14, 2014, 12pm – 17pm

Location

NATLAB, Kastanjelaan 500, Eindhoven, NL

Entrance

Free!

Impressions

Version 4.0 of the SjansMachine has one major difference compared to version 3.0:
The photo booth has been replaced by smartphone- / tablet-’selfies‘.

At Frequentie Strijp-S the SjansMachine used ‘random‘-matching algorithms to match visitors who put their ‘selfie‘ on the SjansMachine Wall.

EXHIBITION

SjansMachine v4.0 @ Baltan Open Labs #5, Eindhoven, NL (2014)

baltan, baltan open labs, carmin karasic, eindhoven, natlab, new media, new media installation, olga mink, rolf van gelder, selfies, sjansmachine, Strijp-S, strp-s, the netherlands

Date

Friday September 12, 2014, 7:00 – 10:00pm

Location

NATLAB, Kastanjelaan 500, Eindhoven, NL

Entrance

Free!

Impressions

Version 4.0 of the SjansMachine has one major difference compared to version 3.0:
The photo booth has been replaced by smartphone- / tablet-‘selfies‘.

The visitors can use their own smartphone or tablet to make a ‘selfie’ of themself. After cropping the image and selecting a category (‘BRILLIANT ARTIST‘, ‘ÜBER GEEK‘, ‘CURIOUS RESEARCHER‘, ‘GENIUS ENGINEER‘, ‘SERIOUS DESIGNER‘ or ‘MAD SCIENTIST‘) their photo will show up on the SjansMachine wall and can be matched with one of the other visitors.

All posts by Rolf van Gelder

Realtime Quakes (2019)

Technology

The Artwork (live)

Realtime History (2018)

‘Realtime History’ is a New Media Artwork by Rolf van Gelder.

Software

Hardware

About Rolf

Contact

Websites

Curriculum Vitae

SjansMachine v3.1 @ Eindhovens Film Festival, Eindhoven, NL (2014)

Date

Location

Entrance

Impressions

Organized by

Sponsored by

SjansMachine v4.0 @ Frequentie Strijp-S, Eindhoven, NL (2014)

Date

Location

Entrance

Impressions

SjansMachine v4.0 @ Baltan Open Labs #5, Eindhoven, NL (2014)

Date

Location

Entrance

Impressions

new media artist, mixed media painter, software engineer, web developer