as-op-doubleweave 0.1

Convert weaving patterns to overshot-patterned double weave

Convert weaving pattern files to overshot-patterned double weave

The patterns must obey these restrictions (after optional filtering):

• Each warp thread must be threaded on only one shaft. (Technically, at most one shaft, because unthreaded warp threads are ignored.)
• The pattern must contain treadling information (not pure liftplan).
• The pattern must use no more than one treadle per weft thread.
• The pattern must have the same number of treadles as shafts.

Installing the Software

• Install Python 3.11 or later.

• Install this "as_op_doubleweave" package on the computer with command: pip install as_op_doubleweave

Usage

On the command line run:

as_op_doubleweave pattern_files

The pattern files may be .wif or .dtx files. The converted files are always .wif.

Filtering options:

• --skip-even-ends for shadow weave patterns, for example
• --skip-odd-ends (same)
• --skip-even-picks for shadow weave patterns, patterns with tabby added, etc.
• --skip-odd-picks (same)
• --skip-treadles for patterns with dedicated treadles for tabby or other tie-down picks

Here is an example using handweaving.net shadow weave pattern 79721. First download the wif file, then convert it as follows:

as_op_doubleweave 79721.wif --skip-even-ends --skip-even-picks

You can also include all ends and picks from the original pattern. This gives nice, but very different, result:

as_op_doubleweave 79721.wif

Developer Tips

• Download the source code from github, or make a fork and download that.

• Inside the directory, issue the following commands:

  • pip install -e . (note the final period) to install an "editable" version of the package. Meaning a version that runs from the source code, so any changes you make can be run without reinstalling.

  • pre-commit install to activate the pre-commit hooks.