enhance netting extension

This commit is contained in:
Mario Voigt 2021-05-30 10:43:47 +02:00
parent c95724719b
commit 16ef1c7627
2 changed files with 75 additions and 26 deletions

View File

@ -2,8 +2,41 @@
<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
<name>Netting</name>
<id>fablabchemnitz.de.netting</id>
<label>This effect net in the a path alternately.</label>
<param name="s_width" type="float" gui-text="Stroke Width, px">1.0</param>
<param name="tab" type="notebook">
<page name="tab_settings" gui-text="Settings">
<param name="netting_type" type="optiongroup" appearance="combo" gui-text="Netting type">
<option value="alternatingly">alternatingly</option>
<option value="allwithall">all with all</option>
</param>
<param name="stroke_width" type="float" precision="3" min="0.001" gui-text="Stroke Width (px)">1.000</param>
</page>
<page name="tab_about" gui-text="About">
<label appearance="header">Netting</label>
<label>This effect (alternatingly) nets in the selected paths. Based on the work of Sunabe Kazumichi.</label>
<label>2019 - 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/netting</label>
<spacer/>
<label appearance="header">Contributing</label>
<label appearance="url">https://gitea.fablabchemnitz.de/MarioVoigt/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>path</object-type>
<effects-menu>

View File

@ -31,30 +31,46 @@ from inkex.paths import Path, CubicSuperPath
class Netting(inkex.EffectExtension):
def add_arguments(self, pars):
pars.add_argument("--s_width", type=float, default=1.0, help="stroke width")
pars.add_argument("--title")
pars.add_argument("--tab")
pars.add_argument("--netting_type", default="allwithall", help="Netting type")
pars.add_argument("--stroke_width", type=float, default=1.0, help="stroke width")
def effect(self):
path_strings = []
net_strings= ["M"]
my_path = etree.Element(inkex.addNS('path','svg'))
s = {'stroke-width': self.options.s_width, 'stroke': '#000000', 'fill': 'none' }
my_path.set('style', str(inkex.Style(s)))
for id, node in self.svg.selected.items():
if node.tag == inkex.addNS('path','svg'):
d = node.get('d')
p = CubicSuperPath(Path(d))
for subpath in p:
for i, csp in enumerate(subpath):
path_strings.append("%f,%f" % ( csp[1][0], csp[1][1]))
node.set('d',str(Path(p)))
while len(path_strings)>0 :
net_strings.append(path_strings.pop(0))
if len(path_strings)>0 :
net_strings.append(path_strings.pop())
my_path.set('d', " ".join(net_strings))
self.svg.get_current_layer().append( my_path )
#static
style = {'stroke-width': str(self.options.stroke_width) +'px', 'stroke': '#000000', 'fill': 'none'}
old_segments = []
new_segments = ["M"] #begin with blank M
#get complete path data from all selected paths
for element in self.svg.selected.filter(inkex.PathElement).values():
d = element.get('d')
p = CubicSuperPath(Path(d))
for subpath in p:
for i, csp in enumerate(subpath):
old_segments.append("%f,%f" % (csp[1][0], csp[1][1]))
if self.options.netting_type == "allwithall":
allnet_group = inkex.Group(id="g" + element.get('id'))
self.svg.get_current_layer().append(allnet_group)
for segment1 in range(0, len(old_segments)):
for segment2 in range(1, len(old_segments)):
allnet_path = inkex.PathElement()
allnet_path.style = style
allnet_path.path = Path('M' + old_segments[segment1] + ' L' + old_segments[segment2])
allnet_group.append(allnet_path)
elif self.options.netting_type == "alternatingly":
#build up the net path between the path points alternatingly
while len(old_segments) > 0:
new_segments.append(old_segments.pop(0))
if len(old_segments) > 0:
new_segments.append(old_segments.pop())
#create the path and add it to the current layer
net_path = inkex.PathElement()
net_path.style = style
net_path.path = Path(" ".join(new_segments))
self.svg.get_current_layer().append(net_path)
if __name__ == '__main__':
Netting().run()