A work about the mix of two extremely different representational systems, though both are based on lines and a grid. Created with Wenqi Li.
A set of Angolan traditional patterns known as Sona, from the Chokwe people, are recreated with Processing, a free graphical library and development environment. The recreation follows the heritage algorithm embedded in the original patterns, which used to be made as finger drawings in sand: a person would tell a story and draw at the same time.
We chose one specific pattern to project over a painting inspired by an early seventeenth-century treatise on linear perspective by the Dutch artist Vredeman de Vries. It is a pattern that tells the story of a wild chicken running away from a hunter. The line is the path the chicken takes while it tries to fool the hunter and exhaust him, until it can return to its hidden home, which sits precisely where the run started.
The main inspiration for this project is the academic work of the Dutch and Mozambican author Paulus Gerdes, a prominent figure in the field of ethnomathematics. The other great influences are Ron Eglash, Erwin Panofsky, Hans Belting and George Saliba.
The film
Ethnocomputing Experiments, on Vimeo.
Three words
Ethnomathematics
Ethno (culture, or group of people) + mathema (explaining reality) + tics (techno). In mathematics education, ethnomathematics is the study of the relationship between mathematics and culture. The term was introduced by the Brazilian educator and mathematician Ubiratan D’Ambrosio during the 1970s.
Ethnocomputing
The study of the interactions between computing and culture, carried out through theoretical analysis, empirical investigation and design implementation. It includes research on the impact of computing on society, and the reverse: how cultural, historical, personal and societal origins affect the innovation, development, diffusion, maintenance and appropriation of computational artefacts or ideas. From the ethnocomputing perspective, no computational technology is culturally neutral, and no cultural practice is a computational void. Instead of treating culture as a hindrance to software engineering, culture should be seen as a resource for innovation and design.
Linear perspective
The illusion of depth on a two-dimensional surface, based on a linear system of spatial alignment. Developed in fifteenth-century Italy, it is a key concept in Western architecture and painting. Even the nineteenth-century analogue camera was still built on the same principles of vision and representation that shaped linear perspective.
Installation, by day and by night
The installation in daylight: the painting after Vredeman de Vries, before the projection starts.At night the Sona line runs across the painted corridor.
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The installation in daylight: the painting after Vredeman de Vries, before the projection starts.At night the Sona line runs across the painted corridor.
Where the two systems come from
On one side, an engraving from Vredeman de Vries. On the other, the Sona pattern, and the algorithm that draws it.
Hans Vredeman de Vries (1527 to 1606), engraving from The Book of Perspective, 1604 to 1605.A Chokwe pattern from Angola, known as Sona. This one tells the story of a wild chicken running away from a hunter.
The running chicken algorithm, redrawn in Processing.Making of.
Second Sunday, 8 April 2018
Second Sunday at Pioneer Works, 8 April 2018.
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Second Sunday at Pioneer Works, 8 April 2018.
Details
Detail: the line crossing the perspective.The artists: Vanessa Rosa and Wenqi Li.
Also at Pioneer Works
The fence
The same building, from the outside. Two hundred and fifty square metres of painting around the perimeter, made during the technology residency in July 2017. It was up until December 2020, and one stretch of it stood longer.