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mightyscape-1.1-deprecated/extensions/fablabchemnitz/draw_directions/draw_directions.py

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2021-07-23 02:36:56 +02:00
#!/usr/bin/env python3
import inkex
from inkex.paths import Path
from inkex import Circle
class DrawDirections(inkex.EffectExtension):
def drawCircle(self, group, color, point):
style = inkex.Style({'stroke': 'none', 'fill': color})
startCircle = group.add(Circle(cx=str(point[0]), cy=str(point[1]), r=str(self.svg.unittouu(str(self.options.dotsize/2) + "px"))))
startCircle.style = style
def add_arguments(self, pars):
pars.add_argument("--dotsize", type=int, default=10, help="Dot size (px) for self-intersecting points")
def effect(self):
dot_group = self.svg.add(inkex.Group())
for node in self.svg.selection.filter(inkex.PathElement).values():
points = list(node.path.end_points)
start = points[0]
end = points[len(points) - 1]
if start[0] == end[0] and start[1] == end[1]:
self.drawCircle(dot_group, '#00FF00', start)
self.drawCircle(dot_group, '#FFFF00', points[1]) #draw one point which gives direction of the path
else: #open contour with start and end point
self.drawCircle(dot_group, '#FF0000', start)
self.drawCircle(dot_group, '#0000FF', end)
if __name__ == '__main__':
DrawDirections().run()