freesewing/packages/plugin-cutonfold/src/index.js

//const VERSION = require('../package.json').version;

export default {
  hooks: {
    preRenderSvg: function(next) {
      // Without this, our custom attribute won't be valid
      this.attributes.add("xmlns:freesewing-plugins", "http://freesewing.org/namespaces/freesewing-plugins");
      this.attributes.add("freesewing-plugins:macro-cutonfold", 'fixme');
      next();
    }
  }
, macros: {
    cutonfold: function(next, so) {
      let points = this.points;
      points.cofStart = so.from.shiftTowards(so.to, 30);
      points.cofEnd = so.to.shiftTowards(so.from, 30);
      points.cofVia1 = so.from.shiftTowards(so.to, 50).rotate(90,points.cofStart);
      points.cofVia2 = so.to.shiftTowards(so.from, 50).rotate(-90,points.cofEnd);
      this.paths.cof = new this.path()
        .move(points.cofStart)
        .line(points.cofVia1)
        .line(points.cofVia2)
        .line(points.cofEnd)
        .attr('class', 'cut-on-fold');
      next();
    }
  }
}