UI Elements

from compas.geometry import Point, Polyline, Bezier
from compas.colors import Color
from compas_view2.app import App

curve = Bezier([[0, 0, 0], [3, 6, 0], [5, -3, 0], [10, 0, 0]])

viewer = App(viewmode="shaded", enable_sidebar=True, width=1600, height=900)
viewer.view.camera.target = [5, 0, 0]
viewer.view.camera.distance = 20

pointobj = viewer.add(Point(* curve.point(0)), pointsize=20, pointcolor=(1, 0, 0))
curveobj = viewer.add(Polyline(curve.locus()), linewidth=2)


@viewer.checkbox(text="Show Point", checked=True)
def check(checked):
    pointobj.is_visible = checked
    viewer.view.update()


@viewer.slider(title="Slide Point", maxval=100, step=1, bgcolor=Color.white())
def slide(value):
    value = value / 100
    pointobj._data = curve.point(value)
    pointobj.update()
    viewer.view.update()


@viewer.button(text="Reset")
def click():
    if viewer.confirm('This will reset the point to parameter t=0.'):
        pointobj._data = curve.point(0)
        pointobj.update()
        slide.value = 0
        viewer.view.update()


@viewer.radio(title='Display', items=[
    {'text': 'Ghosted', 'value': 'ghosted', 'checked': viewer.view.mode == 'ghosted'},
    {'text': 'Shaded', 'value': 'shaded', 'checked': viewer.view.mode == 'shaded'},
    {'text': 'Lighted', 'value': 'lighted', 'checked': viewer.view.mode == 'lighted'},
    {'text': 'Wireframe', 'value': 'wireframe', 'checked': viewer.view.mode == 'wireframe'}
])
def select1(value):
    viewer.view.mode = value
    viewer.view.update()


@viewer.select(items=[
    {'text': 'Item 1'},
    {'text': 'Item 2'},
    {'text': 'Item 3'},
    {'text': 'Item 4'}
])
def select2(index, text):
    viewer.info(f"You selected item '{index}' with text '{text}'")


viewer.run()