Glitch Weaving

Portfolio page: https://www.deannagelosi.com/#/glitch-weaving/

Blog post: https://medium.com/@deannagelosi/generating-glitched-textiles-6842fca2f92

This program generates weaving drafts as svg files based on defined parameters. It takes as input a known weaving structure, e.g. twill or satin, and glitches the design with increasing frequency. The glitches are shaped by a Perlin noise field which produces deterministic results. Drafts can be modified by panning and zooming around the noise field and increasing/decreasing a glitch modifier.

Example output of a glitched weave draft

Weave Structure Profiles

Weave structures are saved in structures.json file. To add additional structures, update this file.

Keyboard Controls

• g: increase glitch modifier
• d: decrease glitch modifier
• r: show or hide row numbers
• s: save current draft as an svg to the drawdowns folder
• up arrow: zoom in, resulting in less variation in the noise field
• down arrow: zoom out, resulting in more variation in the noise field
• left arrow: pan noise field to the left to adjust the output at the same variation level
• right arrow: pan noise field to the right to adjust the output at the same variation level

Variables

A Perlin noise field is a deterministic structured noise known for organic qualities. The zoom level determines its visible structure.

• pan: x-coordinate position on a Perlin nosie
• pZoom: zoom level on Perlin noise field
• seed: a numerical value for the Perlin noise field
• glitchMod: glitch modifier, adds or removes glitching based on keyboard input
• glitchSectionSize: defined in structures.json file for an individual weave structure, number of rows that is glitched incrementally

The result is a weaving draft with lift plan, tie ups, threading, and drawdown. The follow are variables that can be edited to control the draft output:

• numShafts: the total number of shafts on the loom
• rectSize: the size of each cell in the svg output
• warpQuant: the total number of warps (or columns)
• weftQuant: the total number of wefts (or rows)
• cellSize: pixel size of each cell in the draft grid

The following is generated by the program:

• liftPlan: a generated two-dimensional array containing data for the lifted shafts for each row
• drawdown: a generated two-dimensional array of the final warps lifted and lowered
• threading: a two-dimensional array describing how the shafts are tied up
• rowFrequency: analytics on glitch distribution across rows