Curve Comparison 2

from compas.geometry import Point
from compas.geometry import Polyline, Bezier
from compas_occ.geometry import OCCNurbsCurve
from compas_view2.app import App


points = [Point(0, 0, 0), Point(1, 2, 0), Point(2, -2, 0), Point(3, 0, 0)]
bezier = Bezier(points)

points = [Point(4, 0, 0), Point(5, 2, 0), Point(6, -2, 0), Point(7, 0, 0)]

curve1 = OCCNurbsCurve.from_parameters(
    points=points,
    weights=[1.0, 1.0, 1.0, 1.0],
    knots=[0.0, 1.0],
    multiplicities=[4, 4],
    degree=3
)

curve2 = OCCNurbsCurve.from_parameters(
    points=points,
    weights=[1.0, 2.0, 2.0, 1.0],
    knots=[0.0, 1.0],
    multiplicities=[4, 4],
    degree=3
)

curve3 = OCCNurbsCurve.from_parameters(
    points=points,
    weights=[1.0, 1.0, 1.0, 1.0],
    knots=[0.0, 1/3, 2/3, 1.0],
    multiplicities=[3, 1, 1, 3],
    degree=3
)

curve4 = OCCNurbsCurve.from_parameters(
    points=points,
    weights=[1.0, 1.0, 1.0, 1.0],
    knots=[0.0, 1/5, 2/5, 3/5, 4/5, 1.0],
    multiplicities=[2, 1, 1, 1, 1, 2],
    degree=3
)

curve5 = OCCNurbsCurve.from_parameters(
    points=points,
    weights=[1.0, 1.0, 1.0, 1.0],
    knots=[0.0, 1/7, 2/7, 3/7, 4/7, 5/7, 6/7, 1.0],
    multiplicities=[1, 1, 1, 1, 1, 1, 1, 1],
    degree=3
)

curve6 = OCCNurbsCurve.from_parameters(
    points=points,
    weights=[1.0, 1.0, 1.0, 1.0],
    knots=[0.0, 0.5, 1.0],
    multiplicities=[3, 1, 3],
    degree=2
)

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

view = App()

view.add(Polyline(bezier.points), show_points=True, pointsize=20, pointcolor=(1, 0, 0), linewidth=1, linecolor=(0.3, 0.3, 0.3))
view.add(Polyline(bezier.locus()), linewidth=5, linecolor=(0, 0, 0))

view.add(Polyline(curve1.points), show_points=True, pointsize=20, pointcolor=(1, 0, 0), linewidth=1, linecolor=(0.3, 0.3, 0.3))
view.add(Polyline(curve1.locus()), linewidth=5, linecolor=(0, 0, 0))
view.add(Polyline(curve2.locus()), linewidth=3, linecolor=(0, 0, 1))
view.add(Polyline(curve3.locus()), linewidth=3, linecolor=(0.2, 0.2, 1))
view.add(Polyline(curve4.locus()), linewidth=3, linecolor=(0.4, 0.4, 1))
view.add(Polyline(curve5.locus()), linewidth=3, linecolor=(0.6, 0.6, 1))
view.add(Polyline(curve6.locus()), linewidth=3, linecolor=(0.8, 0.8, 1))

view.run()
Curve Comparison 2

COMPAS
