FabLab_Chemnitz/mightyscape-1.1-deprecated
FabLab_Chemnitz/mightyscape-1.1-deprecated
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added shifting option to netting

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Mario Voigt 2021-05-31 08:54:14 +02:00
parent 9d4c94d4b2
commit b6a8c8dfd3
2 changed files with 26 additions and 3 deletions
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1
extensions/fablabchemnitz/netting/netting.inx
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@ -8,6 +8,7 @@
<option value="alternatingly">alternatingly</option>
<option value="allwithall">all with all</option>
</param>
<param name="node_shifting" type="int" min="-1000" max="1000" gui-text="Node shifting" gui-description="Does not apply for 'all with all' type.">0</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">

24
extensions/fablabchemnitz/netting/netting.py
View File

@ -33,13 +33,14 @@ class Netting(inkex.EffectExtension):
def add_arguments(self, pars):
pars.add_argument("--tab")
pars.add_argument("--netting_type", default="allwithall", help="Netting type")
pars.add_argument("--node_shifting", type=int, default=0, help="Does not apply for 'all with all' type.")
pars.add_argument("--stroke_width", type=float, default=1.0, help="stroke width")
def effect(self):
#static
style = {'stroke-width': str(self.options.stroke_width) +'px', 'stroke': '#000000', 'fill': 'none'}
old_segments = []
new_segments = ["M"] #begin with blank M
new_segments = []
#get complete path data from all selected paths
for element in self.svg.selected.filter(inkex.PathElement).values():
@ -69,11 +70,32 @@ class Netting(inkex.EffectExtension):
elif self.options.netting_type == "alternatingly":
#build up the net path between the path points alternatingly
first = True
while len(old_segments) > 0:
if first is True:
new_segments.append('M')
first = False
else:
new_segments.append('L')
new_segments.append(old_segments.pop(0))
if len(old_segments) > 0:
new_segments.append('L')
new_segments.append(old_segments.pop())
shift = self.options.node_shifting
if shift < 0:
counter = -1
else:
counter = +1
for i in range(0, self.options.node_shifting, counter):
for i in range(4):
shifting = new_segments[0]
if new_segments[0] == 'M':
shifting = 'L' #overwrite possible 'M' with 'L'
del new_segments[0]
new_segments.append(shifting)
new_segments[0] = 'M' #let's begin the path with 'M' again
#create the path and add it to the current layer
net_path = inkex.PathElement()
net_path.style = style