kopia lustrzana https://github.com/inkstitch/inkstitch
Add short stitch feature to satin column (#1695)
rodzic
2f41b15ccb
commit
3985b5ac71
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@ -99,6 +99,24 @@ class SatinColumn(EmbroideryElement):
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def max_stitch_length(self):
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return self.get_float_param("max_stitch_length_mm") or None
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@property
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@param('short_stitch_inset',
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_('Short stitch inset'),
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tooltip=_('Stitches in areas with high density will be shortened by this amount.'),
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type='float', unit="%",
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default=15)
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def short_stitch_inset(self):
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return self.get_float_param("short_stitch_inset", 15) / 100
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@property
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@param('short_stitch_distance_mm',
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_('Short stitch distance'),
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tooltip=_('Do short stitches if the distance between stitches is smaller than this.'),
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type='float', unit="mm",
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default=0.25)
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def short_stitch_distance(self):
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return self.get_float_param("short_stitch_distance_mm", 0.25)
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@property
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def color(self):
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return self.get_style("stroke")
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@ -697,8 +715,6 @@ class SatinColumn(EmbroideryElement):
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# Each iteration of this outer loop is one stitch. Keep going
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# until we fall off the end of the section.
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# TODO: is there an other way?
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# old_center = (pos0 + pos1) / 2.0
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old_center = shgeo.Point(x/2 for x in (pos0 + pos1))
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while to_travel > 0 and index0 < last_index0 and index1 < last_index1:
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@ -726,8 +742,6 @@ class SatinColumn(EmbroideryElement):
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pos0, index0 = self.walk(section0, pos0, index0, 0.05)
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pos1, index1 = self.walk(section1, pos1, index1, 0.05 * ratio)
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# TODO: is there a better way?
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# new_center = (pos0 + pos1) / 2.0
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new_center = shgeo.Point(x/2 for x in (pos0 + pos1))
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to_travel -= new_center.distance(old_center)
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old_center = new_center
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@ -821,13 +835,17 @@ class SatinColumn(EmbroideryElement):
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# print >> dbg, "satin", self.zigzag_spacing, self.pull_compensation
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if self.max_stitch_length:
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return self.do_split_stitch()
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patch = StitchGroup(color=self.color)
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sides = self.plot_points_on_rails(self.zigzag_spacing, self.pull_compensation)
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if self.max_stitch_length:
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return self.do_split_stitch(patch, sides)
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# short stitches are not not included into the split stitch
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# they would move the points in a maybe unwanted behaviour
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if self.short_stitch_inset > 0:
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self._do_short_stitches(sides)
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# Like in zigzag_underlay(): take a point from each side in turn.
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for point in chain.from_iterable(zip(*sides)):
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patch.add_stitch(point)
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@ -863,10 +881,8 @@ class SatinColumn(EmbroideryElement):
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patch.add_tags(("satin_column", "e_stitch"))
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return patch
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def do_split_stitch(self):
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def do_split_stitch(self, patch, sides):
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# stitches exceeding the maximum stitch length will be divided into equal parts through additional stitches
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patch = StitchGroup(color=self.color)
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sides = self.plot_points_on_rails(self.zigzag_spacing, self.pull_compensation)
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for i, (left, right) in enumerate(zip(*sides)):
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patch.add_stitch(left)
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patch.stitches[-1].add_tags(("satin_column", "satin_column_edge"))
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@ -898,6 +914,20 @@ class SatinColumn(EmbroideryElement):
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points.append(Point(split_point.x, split_point.y))
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return [points, split_count]
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def _do_short_stitches(self, sides):
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for i, (left, right) in enumerate(zip(*sides)):
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if i % 2 == 0:
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continue
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if left.distance(sides[0][i-1]) < self.short_stitch_distance:
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split_point = self._get_inset_point(left, right, self.short_stitch_inset)
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sides[0][i] = Point(split_point.x, split_point.y)
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if right.distance(sides[1][i-1]) < self.short_stitch_distance:
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split_point = self._get_inset_point(right, left, self.short_stitch_inset)
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sides[1][i] = Point(split_point.x, split_point.y)
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def _get_inset_point(self, point1, point2, distance_fraction):
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return point1 * (1 - distance_fraction) + point2 * distance_fraction
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def to_stitch_groups(self, last_patch=None):
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# Stitch a variable-width satin column, zig-zagging between two paths.
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@ -99,6 +99,8 @@ inkstitch_attribs = [
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'running_stitch_tolerance_mm',
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# satin column
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'satin_column',
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'short_stitch_distance_mm',
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'short_stitch_inset',
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'running_stitch_length_mm',
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'center_walk_underlay',
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'center_walk_underlay_stitch_length_mm',
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