Note
Click here to download the full example code
Cube & Slider Control#
This example shows how to use the UI API. We will demonstrate how to create a cube and control with sliders.
First, some imports.
import numpy as np
from fury import actor, ui, window
from fury.data import fetch_viz_icons
First we need to fetch some icons that are included in FURY.
fetch_viz_icons()
Data size is approximately 12KB
Dataset is already in place. If you want to fetch it again please first remove the folder /Users/skoudoro/.fury/icons
({'icomoon.tar.gz': ('https://digital.lib.washington.edu/researchworks/bitstream/handle/1773/38478/icomoon.tar.gz', 'BC1FEEA6F58BA3601D6A0B029EB8DFC5F352E21F2A16BA41099A96AA3F5A4735')}, '/Users/skoudoro/.fury/icons')
Cube and sliders#
Add a cube to the scene .
cube = actor.cube(
centers=np.array([[15, 0, 0]]),
colors=np.array([[0, 0, 1]]),
scales=np.array([[20, 20, 20]]),
directions=np.array([[0, 0, 1]]),
)
Now we’ll add five sliders: 1 circular and 4 linear sliders. By default the alignments are ‘bottom’ for horizontal and ‘top’ for vertical.
ring_slider = ui.RingSlider2D(
center=(630, 400), initial_value=0, text_template='{angle:5.1f}°'
)
hor_line_slider_text_top = ui.LineSlider2D(
center=(400, 230),
initial_value=0,
orientation='horizontal',
min_value=-10,
max_value=10,
text_alignment='top',
)
hor_line_slider_text_bottom = ui.LineSlider2D(
center=(400, 200),
initial_value=0,
orientation='horizontal',
min_value=-10,
max_value=10,
text_alignment='bottom',
)
ver_line_slider_text_left = ui.LineSlider2D(
center=(100, 400),
initial_value=0,
orientation='vertical',
min_value=-10,
max_value=10,
text_alignment='left',
)
ver_line_slider_text_right = ui.LineSlider2D(
center=(150, 400),
initial_value=0,
orientation='vertical',
min_value=-10,
max_value=10,
text_alignment='right',
)
We can use a callback to rotate the cube with the ring slider.
def rotate_cube(slider):
angle = slider.value
previous_angle = slider.previous_value
rotation_angle = angle - previous_angle
cube.RotateX(rotation_angle)
ring_slider.on_change = rotate_cube
Similarly, we can translate the cube with the line slider.
def translate_cube_ver(slider):
value = slider.value
cube.SetPosition(0, value, 0)
def translate_cube_hor(slider):
value = slider.value
cube.SetPosition(value, 0, 0)
hor_line_slider_text_top.on_change = translate_cube_hor
hor_line_slider_text_bottom.on_change = translate_cube_hor
ver_line_slider_text_left.on_change = translate_cube_ver
ver_line_slider_text_right.on_change = translate_cube_ver
Show Manager#
Now that all the elements have been initialised, we add them to the show manager.
current_size = (800, 800)
show_manager = window.ShowManager(size=current_size, title='FURY Cube Example')
show_manager.scene.add(cube)
show_manager.scene.add(ring_slider)
show_manager.scene.add(hor_line_slider_text_top)
show_manager.scene.add(hor_line_slider_text_bottom)
show_manager.scene.add(ver_line_slider_text_left)
show_manager.scene.add(ver_line_slider_text_right)
Visibility by default is True
cube.SetVisibility(True)
ring_slider.set_visibility(True)
hor_line_slider_text_top.set_visibility(True)
hor_line_slider_text_bottom.set_visibility(True)
ver_line_slider_text_left.set_visibility(True)
ver_line_slider_text_right.set_visibility(True)
Set camera for better visualization
show_manager.scene.reset_camera()
show_manager.scene.set_camera(position=(0, 0, 150))
show_manager.scene.reset_clipping_range()
show_manager.scene.azimuth(30)
interactive = False
if interactive:
show_manager.start()
window.record(show_manager.scene, size=current_size, out_path='viz_slider.png')

Total running time of the script: ( 0 minutes 0.110 seconds)