diff options
Diffstat (limited to 'lib/elements')
| -rw-r--r-- | lib/elements/element.py | 24 | ||||
| -rw-r--r-- | lib/elements/polyline.py | 7 | ||||
| -rw-r--r-- | lib/elements/satin_column.py | 48 | ||||
| -rw-r--r-- | lib/elements/stroke.py | 31 |
4 files changed, 88 insertions, 22 deletions
diff --git a/lib/elements/element.py b/lib/elements/element.py index 3c31f1b0..ebca90a4 100644 --- a/lib/elements/element.py +++ b/lib/elements/element.py @@ -206,6 +206,10 @@ class EmbroideryElement(object): return apply_transforms(self.path, self.node) @property + def shape(self): + raise NotImplementedError("INTERNAL ERROR: %s must implement shape()", self.__class__) + + @property @cache def commands(self): return find_commands(self.node) @@ -215,6 +219,10 @@ class EmbroideryElement(object): return [c for c in self.commands if c.command == command] @cache + def has_command(self, command): + return len(self.get_commands(command)) > 0 + + @cache def get_command(self, command): commands = self.get_commands(command) @@ -238,22 +246,10 @@ class EmbroideryElement(object): return [self.strip_control_points(subpath) for subpath in path] @property - @param('trim_after', - _('TRIM after'), - tooltip=_('Trim thread after this object (for supported machines and file formats)'), - type='boolean', - default=False, - sort_index=1000) def trim_after(self): return self.get_boolean_param('trim_after', False) @property - @param('stop_after', - _('STOP after'), - tooltip=_('Add STOP instruction after this object (for supported machines and file formats)'), - type='boolean', - default=False, - sort_index=1000) def stop_after(self): return self.get_boolean_param('stop_after', False) @@ -264,8 +260,8 @@ class EmbroideryElement(object): patches = self.to_patches(last_patch) if patches: - patches[-1].trim_after = self.trim_after - patches[-1].stop_after = self.stop_after + patches[-1].trim_after = self.has_command("trim") or self.trim_after + patches[-1].stop_after = self.has_command("stop") or self.stop_after return patches diff --git a/lib/elements/polyline.py b/lib/elements/polyline.py index 5c474237..b9ffdc0b 100644 --- a/lib/elements/polyline.py +++ b/lib/elements/polyline.py @@ -1,3 +1,5 @@ +from shapely import geometry as shgeo + from .element import param, EmbroideryElement, Patch from ..i18n import _ from ..utils.geometry import Point @@ -28,6 +30,11 @@ class Polyline(EmbroideryElement): return points @property + @cache + def shape(self): + return shgeo.LineString(self.points) + + @property def path(self): # A polyline is a series of connected line segments described by their # points. In order to make use of the existing logic for incorporating diff --git a/lib/elements/satin_column.py b/lib/elements/satin_column.py index 1d13c5e0..78275745 100644 --- a/lib/elements/satin_column.py +++ b/lib/elements/satin_column.py @@ -17,6 +17,12 @@ class SatinColumn(EmbroideryElement): def satin_column(self): return self.get_boolean_param("satin_column") + # I18N: "E" stitch is so named because it looks like the letter E. + @property + @param('e_stitch', _('"E" stitch'), type='boolean', default='false') + def e_stitch(self): + return self.get_boolean_param("e_stitch") + @property def color(self): return self.get_style("stroke") @@ -28,7 +34,7 @@ class SatinColumn(EmbroideryElement): return max(self.get_float_param("zigzag_spacing_mm", 0.4), 0.01) @property - @param('pull_compensation_mm', _('Pull compensation'), unit='mm', type='float') + @param('pull_compensation_mm', _('Pull compensation'), unit='mm', type='float', default=0) def pull_compensation(self): # In satin stitch, the stitches have a tendency to pull together and # narrow the entire column. We can compensate for this by stitching @@ -76,7 +82,7 @@ class SatinColumn(EmbroideryElement): return max(self.get_float_param("zigzag_underlay_spacing_mm", 3), 0.01) @property - @param('zigzag_underlay_inset_mm', _('Inset amount (default: half of contour underlay inset)'), unit='mm', group=_('Zig-zag Underlay'), type='float') + @param('zigzag_underlay_inset_mm', _('Inset amount (default: half of contour underlay inset)'), unit='mm', group=_('Zig-zag Underlay'), type='float', default="") def zigzag_underlay_inset(self): # how far in from the edge of the satin the points in the zigzags # should be @@ -89,6 +95,17 @@ class SatinColumn(EmbroideryElement): @property @cache + def shape(self): + # This isn't used for satins at all, but other parts of the code + # may need to know the general shape of a satin column. + + flattened = self.flatten(self.parse_path()) + line_strings = [shgeo.LineString(path) for path in flattened] + + return shgeo.MultiLineString(line_strings) + + @property + @cache def csp(self): return self.parse_path() @@ -377,6 +394,28 @@ class SatinColumn(EmbroideryElement): return patch + def do_e_stitch(self): + # e stitch: do a pattern that looks like the letter "E". It looks like + # this: + # + # _|_|_|_|_|_|_|_|_|_|_|_| + + # print >> dbg, "satin", self.zigzag_spacing, self.pull_compensation + + patch = Patch(color=self.color) + + sides = self.walk_paths(self.zigzag_spacing, self.pull_compensation) + + # "left" and "right" here are kind of arbitrary designations meaning + # a point from the first and second rail repectively + for left, right in izip(*sides): + patch.add_stitch(left) + patch.add_stitch(right) + patch.add_stitch(left) + + return patch + + def to_patches(self, last_patch): # Stitch a variable-width satin column, zig-zagging between two paths. @@ -400,6 +439,9 @@ class SatinColumn(EmbroideryElement): # zigzags sit on the contour walk underlay like rail ties on rails. patches.append(self.do_zigzag_underlay()) - patches.append(self.do_satin()) + if self.e_stitch: + patches.append(self.do_e_stitch()) + else: + patches.append(self.do_satin()) return patches diff --git a/lib/elements/stroke.py b/lib/elements/stroke.py index eca9e0ba..bc2ee54c 100644 --- a/lib/elements/stroke.py +++ b/lib/elements/stroke.py @@ -1,9 +1,10 @@ import sys +import shapely.geometry from .element import param, EmbroideryElement, Patch from ..i18n import _ from ..utils import cache, Point -from ..stitches import running_stitch +from ..stitches import running_stitch, bean_stitch from ..svg import parse_length_with_units warned_about_legacy_running_stitch = False @@ -26,18 +27,28 @@ class Stroke(EmbroideryElement): return self.get_style("stroke-dasharray") is not None @property - @param('running_stitch_length_mm', _('Running stitch length'), unit='mm', type='float', default=1.5) + @param('running_stitch_length_mm', _('Running stitch length'), unit='mm', type='float', default=1.5, sort_index=3) def running_stitch_length(self): return max(self.get_float_param("running_stitch_length_mm", 1.5), 0.01) @property - @param('zigzag_spacing_mm', _('Zig-zag spacing (peak-to-peak)'), unit='mm', type='float', default=0.4) + @param('bean_stitch_repeats', + _('Bean stitch number of repeats'), + tooltip=_('Backtrack each stitch this many times. A value of 1 would triple each stitch (forward, back, forward). A value of 2 would quintuple each stitch, etc. Only applies to running stitch.'), + type='int', + default=0, + sort_index=2) + def bean_stitch_repeats(self): + return self.get_int_param("bean_stitch_repeats", 0) + + @property + @param('zigzag_spacing_mm', _('Zig-zag spacing (peak-to-peak)'), unit='mm', type='float', default=0.4, sort_index=3) @cache def zigzag_spacing(self): return max(self.get_float_param("zigzag_spacing_mm", 0.4), 0.01) @property - @param('repeats', _('Repeats'), type='int', default="1") + @param('repeats', _('Repeats'), type='int', default="1", sort_index=1) def repeats(self): return self.get_int_param("repeats", 1) @@ -51,7 +62,13 @@ class Stroke(EmbroideryElement): return self.flatten(path) @property - @param('manual_stitch', _('Manual stitch placement'), tooltip=_("Stitch every node in the path. Stitch length and zig-zag spacing are ignored."), type='boolean', default=False) + @cache + def shape(self): + line_strings = [shapely.geometry.LineString(path) for path in self.paths] + return shapely.geometry.MultiLineString(line_strings) + + @property + @param('manual_stitch', _('Manual stitch placement'), tooltip=_("Stitch every node in the path. Stitch length and zig-zag spacing are ignored."), type='boolean', default=False, sort_index=0) def manual_stitch_mode(self): return self.get_boolean_param('manual_stitch') @@ -145,6 +162,10 @@ class Stroke(EmbroideryElement): patch = Patch(color=self.color, stitches=path, stitch_as_is=True) elif self.is_running_stitch(): patch = self.running_stitch(path, self.running_stitch_length) + + if self.bean_stitch_repeats > 0: + patch.stitches = bean_stitch(patch.stitches, self.bean_stitch_repeats) + else: patch = self.simple_satin(path, self.zigzag_spacing, self.stroke_width) |