Added primitive extension
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Mario Voigt
parent
db0f31054b
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45
extensions/fablabchemnitz_primitive.inx
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extensions/fablabchemnitz_primitive.inx
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<?xml version="1.0" encoding="UTF-8"?>
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<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
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<name>Primitive (Michael Fogleman)</name>
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<id>fablabchemnitz.de.primitive</id>
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<label appearance="header">Settings</label>
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<separator/>
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<param name="keeporiginal" type="bool" gui-text="Keep original image on canvas">false</param>
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<param name="n" type="int" min="0" max="99999" gui-text="Number of shapes">100</param>
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<param name="m" appearance="combo" type="optiongroup" default="1" gui-text="Mode">
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<option value="0">Combo</option>
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<option value="1">Triangle</option>
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<option value="2">Rectangle</option>
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<option value="3">Ellipse</option>
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<option value="4">Circle</option>
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<option value="5">Rotated rectangle</option>
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<option value="6">Beziers</option>
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<option value="7">Rotated ellipse</option>
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<option value="8">Polygon</option>
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</param>
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<param name="rep" type="int" min="0" max="99999" gui-text="Extra shapes/iteration" gui-description="Sdd N extra shapes each iteration with reduced search (mostly good for beziers)">0</param>
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<param name="r" type="int" min="1" max="99999" gui-text="Resize to size before processing (px)">256</param>
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<param name="s" type="int" min="1" max="99999" gui-text="Output image size (px)">1024</param>
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<param name="a" type="int" min="0" max="255" gui-text="Color alpha" gui-description="Use 0 to let the algorithm choose alpha for each shape">128</param>
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<param name="bg_enabled" type="bool" gui-text="Use average starting background color">true</param>
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<param name="bg" type="color" appearance="colorbutton" min="0" max="255" gui-text="Starting background color" gui-description="You need to disable average starting background to use this option">255</param>
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<param name="j" type="int" min="0" max="32" gui-text="Number of parallel workers" gui-description="Default (0) uses all cores">0</param>
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<spacer/>
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<label appearance="header">About</label>
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<separator/>
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<label>Primitive - Reproducing images with geometric primitives written in Go. Wrapped for InkScape 1.X by Mario Voigt / Stadtfabrikanten e.V. (2020)</label>
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<label appearance="url">https://github.com/fogleman/primitive</label>
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<label appearance="url">https://fablabchemnitz.de</label>
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<label>License: GNU GPL v3 for the wrapper, MIT for primitive</label>
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<effect needs-live-preview="true">
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<object-type>image</object-type>
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<effects-menu>
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<submenu name="FabLab Chemnitz">
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<submenu name="Tracing/Edge Detection"/>
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</submenu>
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</effects-menu>
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</effect>
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<script>
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<command location="inx" interpreter="python">./fablabchemnitz_primitive/fablabchemnitz_primitive.py</command>
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</script>
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</inkscape-extension>
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extensions/fablabchemnitz_primitive/fablabchemnitz_primitive.py
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extensions/fablabchemnitz_primitive/fablabchemnitz_primitive.py
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#!/usr/bin/env python3
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import sys
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import inkex
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import os
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import base64
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import urllib.request as urllib
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from PIL import Image
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from io import BytesIO
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from lxml import etree
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from inkex import Color
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"""
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Extension for InkScape 1.X
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Features
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- Primitive - Reproducing images with geometric primitives written in Go.
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Author: Mario Voigt / FabLab Chemnitz
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Mail: mario.voigt@stadtfabrikanten.org
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Date: 21.08.2020
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Last patch: 21.08.2020
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License: GNU GPL v3
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Used version of Primitive: https://github.com/fogleman/primitive/commit/0373c216458be1c4b40655b796a3aefedf8b7d23
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"""
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class Primitive (inkex.Effect):
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def rgbToHex(self, pickerColor):
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longcolor = int(pickerColor)
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if longcolor < 0:
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longcolor = longcolor & 0xFFFFFFFF
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return '#' + format(longcolor >> 8, '06X')
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def checkImagePath(self, node):
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xlink = node.get('xlink:href')
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if xlink and xlink[:5] == 'data:':
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# No need, data alread embedded
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return
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url = urllib.urlparse(xlink)
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href = urllib.url2pathname(url.path)
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# Primary location always the filename itself.
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path = self.absolute_href(href or '')
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# Backup directory where we can find the image
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if not os.path.isfile(path):
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path = node.get('sodipodi:absref', path)
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if not os.path.isfile(path):
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inkex.errormsg('File not found "{}". Unable to embed image.').format(path)
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return
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if (os.path.isfile(path)):
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return path
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def __init__(self):
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inkex.Effect.__init__(self)
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self.arg_parser.add_argument("--keeporiginal", type=inkex.Boolean, default=False, help="Keep original image on canvas")
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self.arg_parser.add_argument("--n", type=int, default=100, help="Number of shapes")
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self.arg_parser.add_argument("--m", default=1, help="Mode")
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self.arg_parser.add_argument("--rep", type=int, default=0,help="Extra shapes/iteration")
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self.arg_parser.add_argument("--r", type=int, default=256, help="Resize to size before processing (px)")
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self.arg_parser.add_argument("--s", type=int, default=1024, help="Output image size (px)")
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self.arg_parser.add_argument("--a", type=int, default=128, help="Color alpha")
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self.arg_parser.add_argument("--bg_enabled", type=inkex.Boolean, default=True, help="Use average starting background color")
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self.arg_parser.add_argument("--bg", type=Color, default=255, help="Starting background color")
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self.arg_parser.add_argument("--j", type=int, default=0, help="Number of parallel workers")
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def effect(self):
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# internal overwrite for scale:
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self.options.scale = 1.0
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if (self.options.ids):
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for node in self.svg.selected.values():
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if node.tag == inkex.addNS('image', 'svg'):
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self.path = self.checkImagePath(node) # This also ensures the file exists
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if self.path is None: # check if image is embedded or linked
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image_string = node.get('{http://www.w3.org/1999/xlink}href')
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# find comma position
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i = 0
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while i < 40:
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if image_string[i] == ',':
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break
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i = i + 1
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image = Image.open(BytesIO(base64.b64decode(image_string[i + 1:len(image_string)])))
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else:
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image = Image.open(self.path)
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# Write the embedded or linked image to temporary directory
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exportfile = "Primitive.png"
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image.save(exportfile, "png")
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## Build up Primitive command according to your settings from extension GUI
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command = "primitive"
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command += " -m " + str(self.options.m)
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command += " -rep " + str(self.options.rep)
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command += " -r " + str(self.options.r)
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command += " -s " + str(self.options.s)
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command += " -a " + str(self.options.a)
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if not self.options.bg_enabled:
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command += " -bg " + self.rgbToHex(self.options.bg)
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command += " -j " + str(self.options.j)
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command += " -i " + exportfile
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command += " -o " + exportfile + ".svg"
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command += " -n " + str(self.options.n)
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inkex.utils.debug(command)
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# Create the vector new SVG file
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with os.popen(command, "r") as proc:
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result = proc.read()
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#inkex.utils.debug(result)
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# proceed if new SVG file was successfully created
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if os.path.exists(exportfile + ".svg"):
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# Delete the temporary png file again because we do not need it anymore
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if os.path.exists(exportfile):
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os.remove(exportfile)
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# new parse the SVG file and insert it as new group into the current document tree
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doc = etree.parse(exportfile + ".svg").getroot()
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newGroup = self.document.getroot().add(inkex.Group())
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newGroup.attrib['transform'] = "matrix(" + \
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str(float(node.get('width')) / float(doc.get('width'))) + \
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", 0, 0 , " + \
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str(float(node.get('height')) / float(doc.get('height'))) + \
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"," + node.get('x') + \
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"," + node.get('y') + ")"
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newGroup.append(doc)
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# Delet the temporary svg file
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if os.path.exists(exportfile + ".svg"):
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os.remove(exportfile + ".svg")
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#remove the old image or not
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if self.options.keeporiginal is not True:
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node.getparent().remove(node)
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else:
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inkex.utils.debug("No image found for tracing. Please select an image first.")
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Primitive().run()
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BIN
extensions/fablabchemnitz_primitive/primitive.exe
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BIN
extensions/fablabchemnitz_primitive/primitive.exe
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