Health, food and farming

Grain and bias — why cloth stretches only at 45 degrees

Cloth stretches on the 45 degree bias because nothing stretches: the woven square shears into a rhombus, so at a 120 degree cell the length gains 22.5 percent while the width loses 29.3 percent — it narrows more than it lengthens

This drawing comes from one YAML file. No shape was moved by hand.

Notes in the source (in Japanese)

Source (YAML)

examples/gallery/240-地の目とバイアス.zumen.yaml

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