add meander angle

lib/elements/fill_stitch.py

@@ -185,9 +185,21 @@ class FillStitch(EmbroideryElement):
     def meander_pattern(self):
         return self.get_param('meander_pattern', min(tiles.all_tiles()).id)
 
+    @property
+    @param('meander_angle',
+           _('Meander pattern angle'),
+           type='float', unit="degrees",
+           default=0,
+           select_items=[('fill_method', 'meander_fill')],
+           sort_index=4)
+    def meander_angle(self):
+        return math.radians(self.get_float_param('meander_angle', 0))
+
     @property
     @param('meander_scale_percent',
            _('Meander pattern scale'),
+           tooltip=_("Percentage to stretch or compress the meander pattern.  You can scale horizontally " +
+                     "and vertically individually by giving two percentages separated by a space. "),
            type='float', unit="%",
            default=100,
            select_items=[('fill_method', 'meander_fill')],

lib/stitches/meander_fill.py

@@ -27,7 +27,7 @@ def meander_fill(fill, shape, original_shape, shape_index, starting_point, endin
     debug.log(f"tile name: {tile.name}")
 
     debug.log_line_strings(lambda: ensure_geometry_collection(shape.boundary).geoms, 'Meander shape')
-    graph = tile.to_graph(shape, fill.meander_scale)
+    graph = tile.to_graph(shape, fill.meander_scale, fill.meander_angle)
 
     if not graph:
         label = fill.node.label or fill.node.get_id()

lib/svg/tags.py

@@ -81,6 +81,7 @@ inkstitch_attribs = [
     'reverse',
     'meander_pattern',
     'meander_scale_percent',
+    'meander_angle',
     'expand_mm',
     'fill_underlay',
     'fill_underlay_angle',

lib/tiles.py

@@ -111,20 +111,20 @@ class Tile:
 
         return translated_tile
 
-    def _scale(self, x_scale, y_scale):
-        scaled_shift0 = self.shift0.scale(x_scale, y_scale)
-        scaled_shift1 = self.shift1.scale(x_scale, y_scale)
+    def _scale_and_rotate(self, x_scale, y_scale, angle):
+        transformed_shift0 = self.shift0.scale(x_scale, y_scale).rotate(angle)
+        transformed_shift1 = self.shift1.scale(x_scale, y_scale).rotate(angle)
 
-        scaled_tile = []
+        transformed_tile = []
         for start, end in self.tile:
-            start = start.scale(x_scale, y_scale)
-            end = end.scale(x_scale, y_scale)
-            scaled_tile.append((start, end))
+            start = start.scale(x_scale, y_scale).rotate(angle)
+            end = end.scale(x_scale, y_scale).rotate(angle)
+            transformed_tile.append((start, end))
 
-        return scaled_shift0, scaled_shift1, scaled_tile
+        return transformed_shift0, transformed_shift1, transformed_tile
 
     @debug.time
-    def to_graph(self, shape, scale):
+    def to_graph(self, shape, scale, angle):
         """Apply this tile to a shape, repeating as necessary.
 
         Return value:
@@ -134,7 +134,7 @@ class Tile:
         """
         self._load()
         x_scale, y_scale = scale
-        shift0, shift1, tile = self._scale(x_scale, y_scale)
+        shift0, shift1, tile = self._scale_and_rotate(x_scale, y_scale, angle)
 
         shape_center, shape_width, shape_height = self._get_center_and_dimensions(shape)
         prepared_shape = prep(shape)