Tab UI

This example shows how to use the Tab UI. We will demonstrate how to create Tabs for:

1. Slider controls for a Cube

2. Checkboxes for Cylinder and Sphere

3. Color combobox for Fury.

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')

First, we create the Tab UI.

tab_ui = ui.TabUI(position=(49, 94), size=(300, 300), nb_tabs=3, draggable=True)

Slider Controls for a Cube for Tab Index 0

Now we prepare content for the first tab.

ring_slider = ui.RingSlider2D(initial_value=0, text_template='{angle:5.1f}°')

line_slider_x = ui.LineSlider2D(
    initial_value=0,
    min_value=-10,
    max_value=10,
    orientation='horizontal',
    text_alignment='Top',
)

line_slider_y = ui.LineSlider2D(
    initial_value=0,
    min_value=-10,
    max_value=10,
    orientation='vertical',
    text_alignment='Right',
)

cube = actor.box(
    centers=np.array([[10, 0, 0]]),
    directions=np.array([[0, 1, 0]]),
    colors=np.array([[0, 0, 1]]),
    scales=np.array([[1, 1, 1]]),
)
cube_x = 0
cube_y = 0


def rotate_cube(slider):
    angle = slider.value
    previous_angle = slider.previous_value
    rotation_angle = angle - previous_angle
    cube.RotateX(rotation_angle)


def translate_cube_x(slider):
    global cube_x, cube_y
    cube_x = slider.value
    cube.SetPosition(cube_x, cube_y, 0)


def translate_cube_y(slider):
    global cube_x, cube_y
    cube_y = slider.value
    cube.SetPosition(cube_x, cube_y, 0)


ring_slider.on_change = rotate_cube
line_slider_x.on_change = translate_cube_x
line_slider_y.on_change = translate_cube_y

After defining content, we define properties for the tab.

tab_ui.tabs[0].title = 'Sliders'
tab_ui.add_element(0, ring_slider, (0.3, 0.3))
tab_ui.add_element(0, line_slider_x, (0.0, 0.0))
tab_ui.add_element(0, line_slider_y, (0.0, 0.1))

CheckBoxes For Cylinder and Sphere for Tab Index 1

Now we prepare content for second tab.

cylinder = actor.cylinder(
    centers=np.array([[0, 0, 0]]),
    directions=np.array([[1, 1, 0]]),
    colors=np.array([[0, 1, 1]]),
    radius=1.0,
)

sphere = actor.sphere(centers=np.array([[5, 0, 0]]), colors=(1, 1, 0))

figure_dict = {'cylinder': cylinder, 'sphere': sphere}
checkbox = ui.Checkbox(labels=['cylinder', 'sphere'])


# Get difference between two lists.
def sym_diff(l1, l2):
    return list(set(l1).symmetric_difference(set(l2)))


# Set Visibility of the figures
def set_figure_visiblity(checkboxes):
    checked = checkboxes.checked_labels
    unchecked = sym_diff(list(figure_dict), checked)

    for visible in checked:
        figure_dict[visible].SetVisibility(True)

    for invisible in unchecked:
        figure_dict[invisible].SetVisibility(False)


checkbox.on_change = set_figure_visiblity

After defining content, we define properties for the tab.

tab_ui.tabs[1].title = 'Checkbox'
tab_ui.add_element(1, checkbox, (0.2, 0.2))

Color Combobox for Fury for Tab Index 2

Now we prepare content for third tab.

label = ui.TextBlock2D(
    position=(600, 300),
    font_size=40,
    color=(1, 0.5, 0),
    justification='center',
    vertical_justification='top',
    text='FURY rocks!!!',
)

colors = {
    'Violet': (0.6, 0, 0.8),
    'Indigo': (0.3, 0, 0.5),
    'Blue': (0, 0, 1),
    'Green': (0, 1, 0),
    'Yellow': (1, 1, 0),
    'Orange': (1, 0.5, 0),
    'Red': (1, 0, 0),
}

color_combobox = ui.ComboBox2D(
    items=list(colors.keys()),
    placeholder='Choose Text Color',
    size=(250, 150),
    draggable=True,
)


def change_color(combobox):
    label.color = colors[combobox.selected_text]


color_combobox.on_change = change_color

After defining content, we define properties for the tab.

tab_ui.tabs[2].title = 'Colors'
tab_ui.add_element(2, color_combobox, (0.1, 0.3))

Define on_change & on_collapsed methods for tab ui to perform certain tasks while active tab is changed or when the tab is collapsed. Note: Tab UI can be collapsed by right clicking on it.

def hide_actors(tab_ui):
    if tab_ui.tabs[tab_ui.active_tab_idx].title == 'Sliders':
        cube.SetVisibility(True)
        cylinder.SetVisibility(False)
        sphere.SetVisibility(False)
        label.set_visibility(False)

    elif tab_ui.tabs[tab_ui.active_tab_idx].title == 'Checkbox':
        cube.SetVisibility(False)
        set_figure_visiblity(checkbox)
        label.set_visibility(False)

    else:
        cube.SetVisibility(False)
        cylinder.SetVisibility(False)
        sphere.SetVisibility(False)
        label.set_visibility(True)


def collapse(tab_ui):
    if tab_ui.collapsed:
        cube.SetVisibility(False)
        cylinder.SetVisibility(False)
        sphere.SetVisibility(False)
        label.set_visibility(False)


tab_ui.on_change = hide_actors
tab_ui.on_collapse = collapse

Next we prepare the scene and render it with the help of show manager.

sm = window.ShowManager(size=(800, 500), title='Viz Tab')
sm.scene.add(tab_ui, cube, cylinder, sphere, label)

# To interact with the ui set interactive = True
interactive = False

if interactive:
    sm.start()

window.record(sm.scene, size=(500, 500), out_path='viz_tab.png')