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from pythreejs import *
import numpy as np
from math import pi
from IPython.display import display
from ipywidgets import HTML, Text
from traitlets import link, dlink


    

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ball = Mesh(geometry=SphereGeometry(radius=1), material=MeshLambertMaterial(color='red'), position=[2,1,0])
scene = Scene(children=[ball, AmbientLight(color='#777777'), make_text('Hello World!', height=.6)])
c = PerspectiveCamera(position=[0, 5, 5],
                      up=[0, 0, 1],
                      children=[DirectionalLight(color='white', position=[3, 5, 1], intensity=0.5)])
renderer = Renderer(camera=c, scene=scene, controls=[OrbitControls(controlling=c)])
display(renderer)


    

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nx, ny = (20, 20)
xmax=1
x = np.linspace(-xmax, xmax, nx)
y = np.linspace(-xmax, xmax, ny)
xx, yy = np.meshgrid(x, y)
z = xx ** 2 - yy ** 2
#z[6,1] = float('nan')
surf_g = SurfaceGeometry(z=list(z[::-1].flat), 
                         width=2 * xmax,
                         height=2 * xmax,
                         width_segments=nx - 1,
                         height_segments=ny - 1)

surf = Mesh(geometry=surf_g, material=MeshLambertMaterial(map=height_texture(z[::-1], 'YlGnBu_r')))
surfgrid = SurfaceGrid(geometry=surf_g, material=LineBasicMaterial(color='black'))
hover_point = Mesh(geometry=SphereGeometry(radius=0.05), material=MeshLambertMaterial(color='hotpink'))
scene = Scene(children=[surf, surfgrid, hover_point, AmbientLight(color='#777777')])
c = PerspectiveCamera(position=[0, 3, 3], up=[0, 0, 1], 
                      children=[DirectionalLight(color='white', position=[3, 5, 1], intensity=0.6)])
click_picker = Picker(controlling=surf, event='dblclick')
hover_picker = Picker(controlling=surf, event='mousemove')
renderer = Renderer(camera=c, scene = scene, controls=[OrbitControls(controlling=c), click_picker, hover_picker])

def f(change):
    value = change['new']
    print('Clicked on %s' % value)
    point = Mesh(geometry=SphereGeometry(radius=0.05), 
                 material=LambertMaterial(color='red'),
                 position=value)
    scene.children = list(scene.children) + [point]

click_picker.observe(f, names=['point'])

link((hover_point, 'position'), (hover_picker, 'point'))

h = HTML()
def g(change):
    h.value = 'Green point at (%.3f, %.3f, %.3f)' % tuple(change['new'])
g({'new': hover_point.position})
hover_picker.observe(g, names=['point'])
display(h)
display(renderer)


    

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DodecahedronGeometry(radius=10, detail=0, _flat=True)


    

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IcosahedronGeometry(radius=10, _flat=True)


    

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TorusKnotBufferGeometry(
    radius=20,
    tube=5,
    tubularSegments=64,
    radialSegments=8,
    p=2,
    q=3)


    

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ball = Mesh(geometry=SphereGeometry(),
            material=MeshLambertMaterial(color='red'))
key_light = DirectionalLight(color='white', position=[3, 5, 1], intensity=0.5)

c = PerspectiveCamera(position=[0, 5, 5], up=[0, 1, 0], children=[key_light])

scene = Scene(children=[ball, c, AmbientLight(color='#777777')], background=None)

renderer = Renderer(camera=c,
                    scene=scene,
                    alpha=True,
                    clearOpacity=0,
                    controls=[OrbitControls(controlling=c)])
display(renderer)


# Let's set up some controls for the clear color/opacity:
import ipywidgets

opacity = ipywidgets.FloatSlider(min=0., max=1.)
ipywidgets.jslink((opacity, 'value'), (renderer, 'clearOpacity'))

color = ipywidgets.ColorPicker()
ipywidgets.jslink((color, 'value'), (renderer, 'clearColor'))

display(ipywidgets.HBox(children=[
    ipywidgets.Label('Clear color:'), color, ipywidgets.Label('Clear opactiy:'), opacity]))