* move all gradient methods to extension

* add underlay to single color elements to compensate density

1 files changed, 0 insertions, 79 deletions

diff --git a/lib/elements/gradient_fill.py b/lib/elements/gradient_fill.py
deleted file mode 100644
index 18443368..00000000
--- a/lib/elements/gradient_fill.py
+++ /dev/null
@@ -1,79 +0,0 @@
-from math import pi
-
-from inkex import DirectedLineSegment, Transform
-from shapely import geometry as shgeo
-from shapely.affinity import affine_transform, rotate
-from shapely.ops import split
-
-from ..svg import PIXELS_PER_MM, get_correction_transform
-
-
-def gradient_shapes_and_attributes(element, shape):
-    # e.g. url(#linearGradient872) -> linearGradient872
-    color = element.color[5:-1]
-    xpath = f'.//svg:defs/svg:linearGradient[@id="{color}"]'
-    gradient = element.node.getroottree().getroot().findone(xpath)
-    gradient.apply_transform()
-    point1 = (float(gradient.get('x1')), float(gradient.get('y1')))
-    point2 = (float(gradient.get('x2')), float(gradient.get('y2')))
-    # get 90° angle to calculate the splitting angle
-    line = DirectedLineSegment(point1, point2)
-    angle = line.angle - (pi / 2)
-    # Ink/Stitch somehow turns the stitch angle
-    stitch_angle = angle * -1
-    # create bbox polygon to calculate the length necessary to make sure that
-    # the gradient splitter lines will cut the entire design
-    bbox = element.node.bounding_box()
-    bbox_polygon = shgeo.Polygon([(bbox.left, bbox.top), (bbox.right, bbox.top),
-                                  (bbox.right, bbox.bottom), (bbox.left, bbox.bottom)])
-    # gradient stops
-    offsets = gradient.stop_offsets
-    stop_styles = gradient.stop_styles
-    # now split the shape according to the gradient stops
-    polygons = []
-    colors = []
-    attributes = []
-    previous_color = None
-    end_row_spacing = None
-    for i, offset in enumerate(offsets):
-        shape_rest = []
-        split_point = shgeo.Point(line.point_at_ratio(float(offset)))
-        length = split_point.hausdorff_distance(bbox_polygon)
-        split_line = shgeo.LineString([(split_point.x - length - 2, split_point.y),
-                                       (split_point.x + length + 2, split_point.y)])
-        split_line = rotate(split_line, angle, origin=split_point, use_radians=True)
-        transform = -Transform(get_correction_transform(element.node))
-        transform = list(transform.to_hexad())
-        split_line = affine_transform(split_line, transform)
-        offset_line = split_line.parallel_offset(1, 'right')
-        polygon = split(shape, split_line)
-        color = stop_styles[i]['stop-color']
-        # does this gradient line split the shape
-        offset_outside_shape = len(polygon.geoms) == 1
-        for poly in polygon.geoms:
-            if isinstance(poly, shgeo.Polygon) and element.shape_is_valid(poly):
-                if poly.intersects(offset_line):
-                    if previous_color:
-                        polygons.append(poly)
-                        colors.append(previous_color)
-                        attributes.append({'angle': stitch_angle, 'end_row_spacing': end_row_spacing, 'color': previous_color})
-                    polygons.append(poly)
-                    attributes.append({'angle': stitch_angle + pi, 'end_row_spacing': end_row_spacing, 'color': color})
-                else:
-                    shape_rest.append(poly)
-        shape = shgeo.MultiPolygon(shape_rest)
-        previous_color = color
-        end_row_spacing = element.row_spacing / PIXELS_PER_MM * 2
-    # add left over shape(s)
-    if shape:
-        if offset_outside_shape:
-            for s in shape.geoms:
-                polygons.append(s)
-                attributes.append({'color': stop_styles[-2]['stop-color'], 'angle': stitch_angle, 'end_row_spacing': end_row_spacing})
-            stitch_angle += pi
-        else:
-            end_row_spacing = None
-        for s in shape.geoms:
-            polygons.append(s)
-            attributes.append({'color': stop_styles[-1]['stop-color'], 'angle': stitch_angle, 'end_row_spacing': end_row_spacing})
-    return polygons, attributes