FabLab_Chemnitz/mightyscape-1.1-deprecated
Archived
1
0
Fork 0
Code Issues Pull Requests Releases Activity

.

Browse Source
This commit is contained in:
Mario Voigt
2021-07-23 02:36:56 +02:00
commit 4d622c5291
4878 changed files with 1849508 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
extensions/fablabchemnitz/unwind_paths/unwind_paths.inx Normal file
View File

@ -0,0 +1,67 @@
<?xml version="1.0" encoding="UTF-8"?>
<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
<name>Unwind Paths</name>
<id>fablabchemnitz.de.unwind_paths</id>
<param name="tab" type="notebook">
<page name="tab_settings" gui-text="Unwind Paths">
<label appearance="header">General Settings</label>
<param name="keep_original" type="bool" gui-text="Keep original paths" gui-description="If selected, the original paths get deleted">false</param>
<param name="break_apart" type="bool" gui-text="Break apart paths" gui-description="Split each path into single curve segments">false</param>
<param name="break_only" type="bool" gui-text="Break apart paths only" gui-description="No unwinding at all">false</param>
<label appearance="header">Color Style</label>
<param name="colorize" type="bool" gui-text="Colorize" gui-description="Colorize original paths and glue pairs">false</param>
<param name="color_increment" type="int" min="1" max="255" gui-text="Color increment" gui-description="For each segment we count up n colors. Does not apply if 'Randomize colors' is enabled.">10000</param>
<param name="randomize_colors" type="bool" gui-text="Randomize colors">false</param>
<label appearance="header">Extrude Options</label>
<param name="extrude" type="bool" gui-text="Extrude">false</param>
<param name="extrude_height" type="float" min="0.000" max="99999.000" precision="3" gui-text="Extrude height">10.000</param>
<param name="unit" gui-text="Unit" type="optiongroup" appearance="combo">
<option value="mm">mm</option>
<option value="cm">cm</option>
<option value="m">m</option>
<option value="in">in</option>
<option value="pt">pt</option>
<option value="px">px</option>
</param>
<param name="render_vertical_dividers" type="bool" gui-text="Render vertical dividers">true</param>
<param name="render_with_dashes" type="bool" gui-text="Use dash style for dividers">true</param>
</page>
<page name="tab_about" gui-text="About">
<label appearance="header">Unwind Paths</label>
<label>An extension to wrap off paths to receive horizontal lines or extruded bands. Can be used for paper crafting, analysis and other works. You can also just use it to colorize path segments.</label>
<label>2021 / written by Mario Voigt (Stadtfabrikanten e.V. / FabLab Chemnitz)</label>
<spacer/>
<label appearance="header">Online Documentation</label>
<label appearance="url">https://y.stadtfabrikanten.org/unwindpaths</label>
<spacer/>
<label appearance="header">Contributing</label>
<label appearance="url">https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.X</label>
<label appearance="url">mailto:mario.voigt@stadtfabrikanten.org</label>
<spacer/>
<label appearance="header">MightyScape Extension Collection</label>
<label>This piece of software is part of the MightyScape for Inkscape Extension Collection and is licensed under GNU GPL v3</label>
<label appearance="url">https://y.stadtfabrikanten.org/mightyscape-overview</label>
</page>
<page name="tab_donate" gui-text="Donate">
<label appearance="header">Coffee + Pizza</label>
<label>We are the Stadtfabrikanten, running the FabLab Chemnitz since 2016. A FabLab is an open workshop that gives people access to machines and digital tools like 3D printers, laser cutters and CNC milling machines.</label>
<spacer/>
<label>You like our work and want to support us? You can donate to our non-profit organization by different ways:</label>
<label appearance="url">https://y.stadtfabrikanten.org/donate</label>
<spacer/>
<label>Thanks for using our extension and helping us!</label>
<image>../000_about_fablabchemnitz.svg</image>
</page>
</param>
<effect>
<object-type>all</object-type>
<effects-menu>
<submenu name="FabLab Chemnitz">
<submenu name="Shape/Pattern from existing Path(s)"/>
</submenu>
</effects-menu>
</effect>
<script>
<command location="inx" interpreter="python">unwind_paths.py</command>
</script>
</inkscape-extension>

238
extensions/fablabchemnitz/unwind_paths/unwind_paths.py Normal file
View File

@ -0,0 +1,238 @@
#!/usr/bin/env python3
"""
Extension for InkScape 1.0+
Paperfold is another flattener for triangle mesh files, heavily based on paperfoldmodels by Felix Scholz aka felixfeliz.
Author: Mario Voigt / FabLab Chemnitz
Mail: mario.voigt@stadtfabrikanten.org
Date: 17.05.2021
Last patch: 18.05.2021
License: GNU GPL v3
For each selected path element, this extension creates an additional path element
consisting of horizontal line segments which are the same size as the original
path segments. Has options to extrude as a band (adds height; adds vertical lines and another horizontal path as bottom enclosure)
ToDos:
- option to render separate rectangle shapes
- option to duplicate vertical lines and then to group each 4 lines into one rect-shape like group
- option to colorize vertical line start + end
- option to add glue tabs/flaps
- option to add length text to each segment
- option to add segment/surface numbers
"""
import copy
import inkex
from inkex import Color, bezier, Path, CubicSuperPath
from lxml import etree
import math
import random
class UnwindPaths(inkex.EffectExtension):
#draw an SVG line segment between the given (raw) points
def drawline(self, pathData, name, parent, line_style):
line_attribs = {'style' : str(inkex.Style(line_style)), inkex.addNS('label','inkscape') : name, 'd' : pathData}
line = etree.SubElement(parent, inkex.addNS('path','svg'), line_attribs )
def add_arguments(self, pars):
pars.add_argument('--tab')
pars.add_argument('--keep_original', type=inkex.Boolean, default=False, help="If selected, the original paths get deleted")
pars.add_argument('--break_apart', type=inkex.Boolean, default=False, help="Split each path into single curve segments")
pars.add_argument('--break_only', type=inkex.Boolean, default=False, help="Only splits root paths into segments (no unwinding)")
pars.add_argument('--colorize', type=inkex.Boolean, default=False, help="Colorize original paths and glue pairs")
pars.add_argument('--color_increment', type=int, default=10000, help="For each segment we count up n colors. Does not apply if 'Randomize colors' is enabled.")
pars.add_argument('--randomize_colors', type=inkex.Boolean, default=False, help="Randomize colors")
pars.add_argument('--extrude', type=inkex.Boolean, default=False)
pars.add_argument('--extrude_height', type=float, default=10.000)
pars.add_argument('--unit', default="mm")
pars.add_argument('--render_vertical_dividers', type=inkex.Boolean, default=False)
pars.add_argument('--render_with_dashes', type=inkex.Boolean, default=False)
#if multiple curves are inside the path we split (break apart)
def breakContours(self, element, breakelements = None): #this does the same as "CTRL + SHIFT + K"
if breakelements == None:
breakelements = []
if element.tag == inkex.addNS('path','svg'):
parent = element.getparent()
idx = parent.index(element)
idSuffix = 0
raw = element.path.to_arrays()
subPaths, prev = [], 0
for i in range(len(raw)): # Breaks compound paths into simple paths
if raw[i][0] == 'M' and i != 0:
subPaths.append(raw[prev:i])
prev = i
subPaths.append(raw[prev:])
if len(subPaths) > 1:
for subpath in subPaths:
replacedelement = copy.copy(element)
oldId = replacedelement.get('id')
csp = CubicSuperPath(subpath)
if len(subpath) > 1 and csp[0][0] != csp[0][1]: #avoids pointy paths like M "31.4794 57.6024 Z"
replacedelement.set('d', csp)
replacedelement.set('id', oldId + str(idSuffix))
parent.insert(idx, replacedelement)
idSuffix += 1
breakelements.append(replacedelement)
parent.remove(element)
else:
breakelements.append(element)
for child in element.getchildren():
self.breakContours(child, breakelements)
return breakelements
def rgb(self, minimum, maximum, value):
minimum, maximum = float(minimum), float(maximum)
ratio = 2 * (value-minimum) / (maximum - minimum)
b = int(max(0, 255 * (1 - ratio)))
r = int(max(0, 255 * (ratio - 1)))
g = 255 - b - r
return r, g, b
def effect(self):
shifting = self.svg.unittouu(str(self.options.extrude_height) + self.options.unit)
#some mode handling
if self.options.colorize is True:
self.options.break_apart = True #required to make it work
if len(self.svg.selected) > 0:
#we break apart combined paths to get distinct contours
breakApartPaths = []
for element in self.svg.selection.filter(inkex.PathElement).values():
breakApartPaths.append(self.breakContours(element))
for breakApartPath in breakApartPaths:
for element in breakApartPath:
elemGroup = self.svg.get_current_layer().add(inkex.Group(id="unwinding-" + element.get('id')))
#beginning point of the unwind band:
bbox = element.bounding_box() #shift the element to the bottom of the element
xmin = bbox.left
ymax = bbox.bottom + bbox.height * 0.1 #10% additional spacing
csp = element.path.to_superpath()
subCount = len(element.path)
#generate random colors; used to identify glue tab pairs
if self.options.colorize is True:
colorSet = []
if self.options.randomize_colors is True:
while len(colorSet) < subCount - 1:
r = lambda: random.randint(0,255)
newColor = '#%02X%02X%02X' % (r(),r(),r())
if newColor not in colorSet:
colorSet.append(newColor)
else:
for i in range(subCount):
colorSet.append(Color(self.rgb(0, i+self.options.color_increment, 1*i)))
for sub in csp:
#generate new horizontal line data by measuring each segment
new = []
new.append([sub[0]])
i = 1
topPathData = "m {:0.6f},{:0.6f} ".format(xmin, ymax)
bottomPathData = "m {:0.6f},{:0.6f} ".format(xmin, ymax + shifting)
lengths = []
if self.options.break_apart is True:
topLineGroup = self.svg.get_current_layer().add(inkex.Group(id="hline-top-" + element.get('id')))
bottomLineGroup = self.svg.get_current_layer().add(inkex.Group(id="hline-bottom-" + element.get('id')))
elemGroup.append(topLineGroup)
elemGroup.append(bottomLineGroup)
newOriginalPathGroup = self.svg.get_current_layer().add(inkex.Group(id="new-original-" + element.get('id')))
self.svg.get_current_layer().append(newOriginalPathGroup) #we want this to be one level above unwound stuff
if self.options.extrude is True:
vlinesGroup = self.svg.get_current_layer().add(inkex.Group(id="vlines-" + element.get('id')))
elemGroup.append(vlinesGroup)
if self.options.break_only is False:
while i <= len(sub) - 1:
stroke_color = '#000000'
if self.options.colorize is True and self.options.break_apart is True:
stroke_color =colorSet[i-1]
horizontal_line_style = {'stroke':stroke_color,'stroke-width':'1px','fill':'none'}
length = bezier.cspseglength(new[-1][-1], sub[i]) #sub path length
segment = "h {:0.6f} ".format(length)
topPathData += segment
bottomPathData += segment
new[-1].append(sub[i]) #important line!
if self.options.break_apart is True:
self.drawline("m {:0.6f},{:0.0f} ".format(xmin + sum([length for length in lengths]), ymax) + segment,
"segmented-top-{}-{}".format(element.get('id'), i), topLineGroup, horizontal_line_style)
if self.options.extrude is True:
self.drawline("m {:0.6f},{:0.0f} ".format(xmin + sum([length for length in lengths]), ymax + shifting) + segment,
"segmented-bottom-{}-{}".format(element.get('id'), i), bottomLineGroup, horizontal_line_style)
lengths.append(length)
i += 1
if self.options.break_apart is False:
self.drawline(topPathData, "combined-top-{0}".format(element.get('id')), elemGroup, horizontal_line_style)
if self.options.extrude is True:
self.drawline(bottomPathData, "combined-bottom-{0}".format(element.get('id')), elemGroup, horizontal_line_style)
#draw as much vertical lines as segments in bezier + start + end vertical line
vertical_end_lines_style = {'stroke':'#000000','stroke-width':'1px','fill':'none'}
if self.options.extrude is True:
#render start line
self.drawline("m {:0.6f},{:0.6f} v {:0.6f}".format(xmin, ymax, shifting),"vline-{}-start".format(element.get('id')), vlinesGroup, vertical_end_lines_style)
#render divider lines
if self.options.render_vertical_dividers is True:
vertical_mid_lines_style = {'stroke':'#000000','stroke-width':'1px','fill':'none'}
if self.options.render_with_dashes is True:
vertical_mid_lines_style = {'stroke':'#000000','stroke-width':'1px',"stroke-dasharray":"2 2", 'fill':'none'}
x = 0
for n in range(0, i-2):
x += lengths[n]
self.drawline("m {:0.6f},{:0.6f} v {:0.6f}".format(xmin + x, ymax, shifting),"vline-{}-{}".format(element.get('id'), n + 1), vlinesGroup, vertical_mid_lines_style)
#render end line
self.drawline("m {:0.6f},{:0.6f} v {:0.6f}".format(xmin + sum([length for length in lengths]), ymax, shifting),"vline-{}-end".format(element.get('id')), vlinesGroup, vertical_end_lines_style)
if self.options.break_apart is True:
# Split (already broken apart) paths into detached segments
raw = Path(element.get("d")).to_arrays() #returns Uppercase Command Letters; does not include H, V
for i in range(len(raw)):
if i > 0:
if raw[i-1][0] in ("M", "L"):
startPoint = "M {},{}".format(raw[i-1][1][0], raw[i-1][1][1])
elif raw[i-1][0] == 'C':
startPoint = "M {},{}".format(raw[i-1][1][-2], raw[i-1][1][-1])
else:
inkex.utils.debug("Start point error. Unknown command!")
if raw[i][0] in ("M", "L"):
segment = " {},{}".format(raw[i][1][0], raw[i][1][1])
elif raw[i][0] == 'C':
segment = "{} {}".format(raw[i][0], ''.join(str(raw[i][1]))[1:-1])
elif raw[i][0] == 'Z':
segment = "{},{}".format(raw[0][1][0], raw[0][1][1])
else:
inkex.utils.debug("Segment error. Unknown command!")
d = str(Path("{} {}".format(startPoint, segment)))
stroke_color = '#000000'
if self.options.colorize is True:
stroke_color =colorSet[i-1]
new_original_line_style = {'stroke':stroke_color,'stroke-width':'1px','fill':'none'}
self.drawline(d, "segmented-" + element.get('id'), newOriginalPathGroup, new_original_line_style)
if self.options.keep_original is False:
element.delete()
else:
self.msg('Please select some paths first.')
return
if __name__ == '__main__':
UnwindPaths().run()