construction: Using shorthand and first back outline

packages/brian/src/back.js

@@ -0,0 +1,27 @@
+import F from 'freesewing'
+import base from './base';
+
+var back =
+{
+  draft: function(part, context, final = true)
+  {
+    let { measurements, options, points, paths, snippets } = F.utils.shorthand(part, context);
+
+    base.draft(part, context);
+
+    paths.seam = new F.path()
+      .move(points.cbNeck)
+      .line(points.cbHips)
+      .line(points.hips)
+      .line(points.armhole)
+      .curve(points.armholeCp1, points.armholeCp2, points.armholeHollow)
+      .curve(points.armholeHollowCp1, points.armholeHollowCp2, points.armholePitch)
+      .curve(points.armholePitchCp1, points.armholePitchCp2, points.shoulder)
+      .line(points.neck)
+      .curve(points.neckCp1, points.cbNeck, points.cbNeck)
+      .close()
+    ;
+  }
+}
+
+export default back;