fixes in tab generator
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@ -4,9 +4,10 @@
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<id>fablabchemnitz.de.tab_generator</id>
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<param name="usermenu" type="notebook">
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<page name="settings" gui-text="Settings">
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<param name="tabangle" type="float" min="0.0" max="90.0" gui-text="Angle of tab edges (degrees):">45.0</param>
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<param name="tabheight" type="float" min="0.01" max="9999.0" gui-text="Height of tab:">0.4</param>
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<param name="dashlength" type="float" min="0.0" max="9999.0" gui-text="Length of dashline (zero for solid line):">0.1</param>
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<label appearance="header">Measures and tab generation</label>
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<param name="tabangle" type="float" min="0.01" max="90.0" precision="2" gui-text="Angle of tab edges (degrees):">45.00</param>
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<param name="tabheight" type="float" min="0.01" max="9999.0" precision="2" gui-text="Height of tab:">0.40</param>
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<param name="dashlength" type="float" min="0.0" max="9999.0" precision="2" gui-text="Length of dash line (zero for solid line):" gui-description="If value larger than zero the line will split up into real dash lines (no cosmetic one's)">0.1</param>
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<param name="tabsets" type="optiongroup" appearance="combo" gui-text="Tab placement on polygons with cutouts:">
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<option value="outside">outside</option>
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<option value="inside">inside</option>
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@ -23,9 +24,11 @@
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<option value="ft">ft</option>
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<option value="yd">yd</option>
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</param>
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<param name="strokewidth" min="0.0" max="10000.0" precision="3" gui-text="Stroke width (px)" type="float">1.0</param>
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<param name="color_solid" type="color" appearance="colorbutton" gui-text="Solid line color">3419879935</param>
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<param name="color_dash" type="color" appearance="colorbutton" gui-text="Dash line color">1592519679</param>
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<label appearance="header">Styles</label>
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<param name="cosmetic_dash_style" type="bool" gui-text="Cosmetic dash lines" gui-description="If entered dash line length is zero we can apply some cosmetic style only">false</param>
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<param name="color_solid" type="color" appearance="colorbutton" gui-text="Solid line color">4278190335</param>
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<param name="color_dash" type="color" appearance="colorbutton" gui-text="Dash line color">65535</param>
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<label appearance="header">Other settings</label>
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<param name="print_debug" type="bool" gui-text="Print debug info">true</param>
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<param name="keep_original" type="bool" gui-text="Keep original elements">false</param>
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</page>
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@ -16,6 +16,7 @@
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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"""
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Given a closed path of straight lines, this program generates a paper model containing
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tabs and score lines for each straight edge.
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@ -75,16 +76,19 @@ class Tabgen(inkex.EffectExtension):
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pars.add_argument("--tabangle", type=float, default=45.0, help="Angle of tab edges in degrees")
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pars.add_argument("--tabheight", type=float, default=0.4, help="Height of tab in dimensional units")
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pars.add_argument("--dashlength", type=float, default=0.25, help="Length of dashline in dimentional units (zero for solid line)")
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pars.add_argument("--cosmetic_dash_style", type=inkex.Boolean, default=False, help="Cosmetic dash lines")
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pars.add_argument("--tabsets", default="both", help="Tab placement on polygons with cutouts")
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pars.add_argument("--unit", default="in", help="Dimensional units of selected paths")
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pars.add_argument("--strokewidth", type=float, default=1.0, help="Stroke width (px)")
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pars.add_argument("--color_solid", type=Color, default='3419879935', help="Solid line color")
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pars.add_argument("--color_dash", type=Color, default='1592519679', help="Solid line dash")
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pars.add_argument("--color_solid", type=Color, default='4278190335', help="Solid line color")
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pars.add_argument("--color_dash", type=Color, default='65535', help="Solid line dash")
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pars.add_argument("--print_debug", type=inkex.Boolean, default=True, help="Print debug info")
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pars.add_argument("--keep_original", type=inkex.Boolean, default=False, help="Keep original elements")
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#draw SVG line segment(s) between the given (raw) points
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def drawline(self, dstr, name, parent, sstr=None):
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'''
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draw SVG line segment(s) between the given (raw) points
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'''
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line_style = {'stroke':'#000000','stroke-width':'1','fill':'none'}
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if sstr == None:
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stylestr = str(inkex.Style(line_style))
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@ -95,6 +99,7 @@ class Tabgen(inkex.EffectExtension):
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el.style = sstr
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el.label = name
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def pathInsidePath(self, path, testpath):
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enclosed = True
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for tp in testpath:
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@ -103,6 +108,7 @@ class Tabgen(inkex.EffectExtension):
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enclosed = False
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return enclosed # True if testpath is fully enclosed in path
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return enclosed
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def insidePath(self, path, p):
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point = pnPoint((p.x, p.y))
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@ -112,6 +118,7 @@ class Tabgen(inkex.EffectExtension):
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isInside = point.InPolygon(pverts, True)
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return isInside # True if point p is inside path
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def makescore(self, pt1, pt2, dashlength):
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# Draws a dashed line of dashlength between two points
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# Dash = dashlength (in inches) space followed by dashlength mark
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@ -200,17 +207,20 @@ class Tabgen(inkex.EffectExtension):
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done = True
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return ddash
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def detectIntersect(self, x1, y1, x2, y2, x3, y3, x4, y4):
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td = (x1-x2)*(y3-y4)-(y1-y2)*(x3-x4)
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if td == 0:
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# These line segments are parallel
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return False
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t = ((x1-x3)*(y3-y4)-(y1-y3)*(x3-x4))/td
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if (0.0 <= t) and (t <= 1.0):
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return True
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else:
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return False
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def makeTab(self, tpath, pt1, pt2, tabht, taba):
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# tpath - the pathstructure containing pt1 and pt2
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# pt1, pt2 - the two points where the tab will be inserted
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@ -467,6 +477,7 @@ class Tabgen(inkex.EffectExtension):
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tpt1.y = thetal1[1].y
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tpt2.x = thetal2[1].x
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tpt2.y = thetal2[1].y
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# Check to see if any tabs intersect each other
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if self.detectIntersect(pt1.x, pt1.y, tpt1.x, tpt1.y, pt2.x, pt2.y, tpt2.x, tpt2.y):
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# Found an intersection.
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@ -503,11 +514,7 @@ class Tabgen(inkex.EffectExtension):
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savid = ''
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elems = []
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pc = 0
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solidLineStyle = {'stroke': str(self.options.color_solid), 'fill': 'none', 'stroke-width': self.options.strokewidth}
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dashLineStyle = {'stroke': str(self.options.color_dash), 'fill': 'none', 'stroke-width': self.options.strokewidth}
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for selem in self.svg.selection.filter(inkex.PathElement):
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elems.append(selem)
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if len(elems) == 0:
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@ -526,6 +533,18 @@ class Tabgen(inkex.EffectExtension):
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idmod = 0
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elementPath = Path(elem.path.to_absolute().transform(elem.getparent().composed_transform()))
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isClosed = False
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raw = elementPath.to_arrays()
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if raw[-1][0] == 'Z' or \
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(raw[-1][0] == 'L' and raw[0][1] == raw[-1][1]) or \
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(raw[-1][0] == 'C' and raw[0][1] == [raw[-1][1][-2], raw[-1][1][-1]]) \
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: #if first is last point the path is also closed. The "Z" command is not required
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isClosed = True
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if isClosed is False:
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if self.options.print_debug is True:
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self.msg("Warning! Path {} is not closed. Skipping ...".format(elem.get('id')))
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continue
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for ptoken in elementPath: # For each point in the path
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ptx2 = None
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pty2 = None
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@ -566,12 +585,9 @@ class Tabgen(inkex.EffectExtension):
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else:
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raise inkex.AbortExtension("Unrecognized path command {0}".format(ptoken.letter))
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npath.path.append(inkex.paths.Line(ptx2,pty2))
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npath.style = solidLineStyle
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if ptoken.letter == 'Z':
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npaths.append(npath)
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else:
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if self.options.print_debug is True:
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self.msg("Warning! Path {} is not closed. Skipping ...".format(elem.get('id')))
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last_letter = ptoken.letter
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# check for cutouts
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if idmod > 1:
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@ -580,6 +596,7 @@ class Tabgen(inkex.EffectExtension):
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if apath.id != bpath.id:
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if self.pathInsidePath(bpath.path, apath.path):
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apath.enclosed = True
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# add tabs to current path(s)
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if 'style' in elem.attrib:
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sstr = elem.attrib['style']
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@ -600,6 +617,7 @@ class Tabgen(inkex.EffectExtension):
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dsub = '' # Used for building sub-paths
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dprop = '' # Used for building the main path
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dscore = '' # Used for building dashlines
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for apath in npaths:
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mpath = [apath.path[0]] # init output path with first point of input path
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for ptn in range(len(apath.path)-1):
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@ -628,17 +646,17 @@ class Tabgen(inkex.EffectExtension):
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## and close the path
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dsub = dsub + ' Z'
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dprop = dprop + dsub # combine all the paths
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if math.isclose(dashlength, 0.0):
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# lump together all the score lines
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group = inkex.elements._groups.Group()
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group.label = 'group'+str(pc)+'ms'
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self.drawline(dprop,'model'+str(pc),group,sstr) # Output the model
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if dscore != '':
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self.drawline(dscore,'score'+str(pc),group,sstr) # Output the scorelines separately
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layer.append(group)
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else:
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dprop = dprop + dscore
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self.drawline(dprop,savid+'ms',layer,sstr)
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# lump together all the score lines
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group = inkex.elements._groups.Group()
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group.label = 'group'+str(pc)+'ms'
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self.drawline(dprop,'model'+str(pc),group,sstr+';stroke:{}'.format(self.options.color_solid)) # Output the model
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if dscore != '':
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dscore_style = sstr+';stroke:{}'.format(self.options.color_dash)
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if self.options.cosmetic_dash_style is True:
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dscore_style += ';stroke-dasharray:{}'.format(3, 3)
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self.drawline(dscore,'score'+str(pc),group,dscore_style) # Output the scorelines separately
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layer.append(group)
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pc += 1
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if self.options.keep_original is False:
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