Curve Segmentation

../_images/example_segmentation.png 
from compas.geometry import Point
from compas.geometry import Polyline
from compas_occ.geometry import OCCNurbsCurve
from compas_view2.app import App


pointsA = [Point(0, 0, 0), Point(3, 6, 0), Point(6, -3, 3), Point(10, 0, 0)]
curveA = OCCNurbsCurve.from_points(pointsA)

curveA.segment(u=0.2, v=0.5)

print(curveA.domain)

pointsB = [Point(0, -1, 0), Point(3, 5, 0), Point(6, -4, 3), Point(10, -1, 0)]
curveB = OCCNurbsCurve.from_points(pointsB)

segment = curveB.segmented(u=0.2, v=0.5)

print(curveB.domain)
print(segment.domain)

# ==============================================================================
# Visualisation
# ==============================================================================

view = App()

view.add(Polyline(curveA.locus()), linewidth=4, linecolor=(1, 0, 0))

view.add(Polyline(curveB.locus()), linewidth=1, linecolor=(0, 0, 0))
view.add(Polyline(segment.locus()), linewidth=4, linecolor=(0, 1, 0))

view.run()

(0.2, 0.5)

(0.0, 1.0)
(0.2, 0.5)