Merge pull request #293 from inkstitch/lexelby/origin-and-stop-position

origin and stop position

1 files changed, 19 insertions, 46 deletions

diff --git a/lib/output.py b/lib/output.py
index eed665ed..d5c513e2 100644
--- a/lib/output.py
+++ b/lib/output.py
@@ -1,10 +1,9 @@
 import pyembroidery
-import inkex
 import simpletransform
-import shapely.geometry as shgeo
 
 from .utils import Point
 from .svg import PIXELS_PER_MM, get_doc_size, get_viewbox_transform
+from .commands import global_command
 
 
 def get_command(stitch):
@@ -26,58 +25,30 @@ def _string_to_floats(string):
 
 
 def get_origin(svg):
-    # The user can specify the embroidery origin by defining two guides
-    # named "embroidery origin" that intersect.
+    origin_command = global_command(svg, "origin")
 
-    namedview = svg.find(inkex.addNS('namedview', 'sodipodi'))
-    all_guides = namedview.findall(inkex.addNS('guide', 'sodipodi'))
-    label_attribute = inkex.addNS('label', 'inkscape')
-    guides = [guide for guide in all_guides
-              if guide.get(label_attribute, "").startswith("embroidery origin")]
+    if origin_command:
+        return origin_command.point
+    else:
+        # default: center of the canvas
 
-    # document size used below
-    doc_size = list(get_doc_size(svg))
+        doc_size = list(get_doc_size(svg))
 
-    # convert the size from viewbox-relative to real-world pixels
-    viewbox_transform = get_viewbox_transform(svg)
-    simpletransform.applyTransformToPoint(simpletransform.invertTransform(viewbox_transform), doc_size)
+        # convert the size from viewbox-relative to real-world pixels
+        viewbox_transform = get_viewbox_transform(svg)
+        simpletransform.applyTransformToPoint(simpletransform.invertTransform(viewbox_transform), doc_size)
 
-    default = [doc_size[0] / 2.0, doc_size[1] / 2.0]
-    simpletransform.applyTransformToPoint(viewbox_transform, default)
-    default = Point(*default)
+        default = [doc_size[0] / 2.0, doc_size[1] / 2.0]
+        simpletransform.applyTransformToPoint(viewbox_transform, default)
+        default = Point(*default)
 
-    if len(guides) < 2:
         return default
 
-    # Find out where the guides intersect.  Only pay attention to the first two.
-    guides = guides[:2]
-
-    lines = []
-    for guide in guides:
-        # inkscape's Y axis is reversed from SVG's, and the guide is in inkscape coordinates
-        position = Point(*_string_to_floats(guide.get('position')))
-        position.y = doc_size[1] - position.y
-
-        # This one baffles me.  I think inkscape might have gotten the order of
-        # their vector wrong?
-        parts = _string_to_floats(guide.get('orientation'))
-        direction = Point(parts[1], parts[0])
-
-        # We have a theoretically infinite line defined by a point on the line
-        # and a vector direction.  Shapely can only deal in concrete line
-        # segments, so we'll pick points really far in either direction on the
-        # line and call it good enough.
-        lines.append(shgeo.LineString((position + 100000 * direction, position - 100000 * direction)))
 
-    intersection = lines[0].intersection(lines[1])
-
-    if isinstance(intersection, shgeo.Point):
-        origin = [intersection.x, intersection.y]
-        simpletransform.applyTransformToPoint(viewbox_transform, origin)
-        return Point(*origin)
-    else:
-        # Either the two guides are the same line, or they're parallel.
-        return default
+def jump_to_stop_point(pattern, svg):
+    stop_position = global_command(svg, "stop_position")
+    if stop_position:
+        pattern.add_stitch_absolute(pyembroidery.JUMP, stop_position.point.x, stop_position.point.y)
 
 
 def write_embroidery_file(file_path, stitch_plan, svg):
@@ -89,6 +60,8 @@ def write_embroidery_file(file_path, stitch_plan, svg):
         pattern.add_thread(color_block.color.pyembroidery_thread)
 
         for stitch in color_block:
+            if stitch.stop:
+                jump_to_stop_point(pattern, svg)
             command = get_command(stitch)
             pattern.add_stitch_absolute(command, stitch.x, stitch.y)