def features_visualization(features):
'''
features - a dictionary of track features
prints a bar chart of selected features (on the same scale of 0-1)
'''
feature_dict = copy.deepcopy(features)
# exclude some features
for feature in [
'time_signature', 'mode', 'loudness', 'key', 'tempo',
'duration_ms', 'analysis_url', 'id', 'track_href', 'type', 'uri'
]:
del feature_dict[feature]
# customize chart style
custom_style = Style(background='rgba(253, 247, 246, 0.4)',
plot_background='rgba(249, 228, 225, 1)',
foreground='rgba(0, 0, 0, 0.9)',
foreground_strong='rgba(0, 0, 0, 0.9)',
foreground_subtle='rgba(0, 0, 0, 0.5)',
opacity='.6',
opacity_hover='.9',
colors=('#d94e4c', '#e5884f', '#39929a',
lighten('#d94e4c', 10), darken('#39929a', 15),
lighten('#e5884f',
17), darken('#d94e4c',
10), '#234547'))
# create chart
chart = pygal.HorizontalBar(style=custom_style)
chart.title = 'Track Features'
for feature, value in feature_dict.items():
chart.add(feature, value)
chart.render()
return chart.render_data_uri()
class TurquoiseStyle(Style):
"""A turquoise style"""
background = darken('#1b8088', 15)
plot_background = darken('#1b8088', 17)
foreground = 'rgba(255, 255, 255, 0.9)'
foreground_strong = 'rgba(255, 255, 255, 0.9)'
foreground_subtle = 'rgba(255, 255 , 255, 0.5)'
opacity = '.5'
opacity_hover = '.9'
transition = '250ms ease-in'
colors = ('#93d2d9', '#ef940f', '#8C6243', '#fff', darken('#93d2d9', 20),
lighten('#ef940f', 15), lighten('#8c6243', 15), '#1b8088')
class DarkGreenBlueStyle(Style):
"""A dark green and blue style"""
background = '#000'
plot_background = lighten('#000', 8)
foreground = 'rgba(255, 255, 255, 0.9)'
foreground_strong = 'rgba(255, 255, 255, 0.9)'
foreground_subtle = 'rgba(255, 255, 255, 0.6)'
opacity = '.55'
opacity_hover = '.9'
transition = '250ms ease-in'
colors = (lighten('#34B8F7', 15), '#7dcf30', '#247fab',
darken('#7dcf30', 10), lighten('#247fab', 10),
lighten('#7dcf30', 10), darken('#247fab', 10), '#fff')
class RedBlueStyle(Style):
"""A red and blue theme"""
background = lighten('#e6e7e9', 7)
plot_background = lighten('#e6e7e9', 10)
foreground = 'rgba(0, 0, 0, 0.9)'
foreground_strong = 'rgba(0, 0, 0, 0.9)'
foreground_subtle = 'rgba(0, 0, 0, 0.5)'
opacity = '.6'
opacity_hover = '.9'
colors = ('#d94e4c', '#e5884f', '#39929a', lighten('#d94e4c', 10),
darken('#39929a', 15), lighten('#e5884f',
17), darken('#d94e4c',
10), '#234547')
class BlueStyle(Style):
"""A blue style"""
background = darken('#f8f8f8', 3)
plot_background = '#f8f8f8'
foreground = 'rgba(0, 0, 0, 0.9)'
foreground_strong = 'rgba(0, 0, 0, 0.9)'
foreground_subtle = 'rgba(0, 0, 0, 0.6)'
opacity = '.5'
opacity_hover = '.9'
transition = '250ms ease-in'
colors = ('#00b2f0', '#43d9be', '#0662ab', darken('#00b2f0', 20),
lighten('#43d9be', 20), lighten('#7dcf30', 10),
darken('#0662ab', 15), '#ffd541', '#7dcf30',
lighten('#00b2f0', 15), darken('#ffd541', 20))
class LightGreenStyle(Style):
"""A light green style"""
background = lighten('#f3f3f3', 3)
plot_background = '#fff'
foreground = '#333333'
foreground_strong = '#666'
foreground_subtle = '#222222'
opacity = '.5'
opacity_hover = '.9'
transition = '250ms ease-in'
colors = ('#7dcf30', '#247fab', lighten('#7dcf30', 10), '#ccc',
darken('#7dcf30',
15), '#ddd', lighten('#247fab',
10), darken('#247fab', 15))
class DarkColorizedStyle(Style):
"""A dark colorized style"""
background = darken('#3a2d3f', 5)
plot_background = lighten('#3a2d3f', 2)
foreground = 'rgba(255, 255, 255, 0.9)'
foreground_strong = 'rgba(255, 255, 255, 0.9)'
foreground_subtle = 'rgba(255, 255 , 255, 0.5)'
opacity = '.2'
opacity_hover = '.7'
transition = '250ms ease-in'
colors = ('#c900fe', '#01b8fe', '#59f500', '#ff00e4', '#f9fa00',
darken('#c900fe', 20), darken('#01b8fe', 15),
darken('#59f500', 20), darken('#ff00e4',
15), lighten('#f9fa00', 20))
class LightColorizedStyle(Style):
"""A light colorized style"""
background = '#f8f8f8'
plot_background = lighten('#f8f8f8', 3)
foreground = '#333'
foreground_strong = '#666'
foreground_subtle = 'rgba(0, 0 , 0, 0.5)'
opacity = '.5'
opacity_hover = '.9'
transition = '250ms ease-in'
colors = ('#fe9592', '#534f4c', '#3ac2c0', '#a2a7a1',
darken('#fe9592', 15), lighten('#534f4c',
15), lighten('#3ac2c0', 15),
lighten('#a2a7a1', 15), lighten('#fe9592',
15), darken('#3ac2c0', 10))
def test_lighten():
assert lighten('#800', 20) == '#ee0000'
assert lighten('#800', 0) == '#880000'
assert lighten('#ffffff', 10) == '#ffffff'
assert lighten('#000000', 10) == '#1a1a1a'
assert lighten('#f3148a', 25) == '#f98dc6'
assert lighten('#121212', 1) == '#151515'
assert lighten('#999999', 100) == '#ffffff'
assert lighten('#1479ac', 8) == '#1893d1'
def test_lighten():
assert lighten('#800', 20) == '#e00'
assert lighten('#800', 0) == '#800'
assert lighten('#ffffff', 10) == '#ffffff'
assert lighten('#000000', 10) == '#1a1a1a'
assert lighten('#f3148a', 25) == '#f98dc6'
assert lighten('#121212', 1) == '#151515'
assert lighten('#999999', 100) == '#ffffff'
assert lighten('#1479ac', 8) == '#1893d1'
def test_lighten():
"""Test lighten color function"""
assert lighten('#800', 20) == '#e00'
assert lighten('#800', 0) == '#800'
assert lighten('#ffffff', 10) == '#ffffff'
assert lighten('#000000', 10) == '#1a1a1a'
assert lighten('#f3148a', 25) == '#f98dc6'
assert lighten('#121212', 1) == '#151515'
assert lighten('#999999', 100) == '#ffffff'
assert lighten('#1479ac', 8) == '#1893d1'
def __init__(self):
mystyle = Style(
#background=darken('#f8f8f8', 3),
background='white',
plot_background='white',
foreground='rgba(0, 0, 0, 0.9)',
foreground_light='rgba(0, 0, 0, 0.9)',
foreground_dark='rgba(0, 0, 0, 0.6)',
opacity='.5',
opacity_hover='.9',
transition='250ms ease-in',
colors=('#00b2f0', '#43d9be', '#0662ab', darken('#00b2f0', 20),
lighten('#43d9be', 20), lighten('#7dcf30', 10),
darken('#0662ab', 15), '#ffd541', '#7dcf30',
lighten('#00b2f0', 15), darken('#ffd541', 20)))
self.tmpDir = tempfile.mkdtemp()
self.config = pygal.Config(style=mystyle,
legend_font_size=10,
width=500,
height=250)
def __init__(self):
mystyle = Style(
#background=darken('#f8f8f8', 3),
background='white',
plot_background='white',
foreground='rgba(0, 0, 0, 0.9)',
foreground_light='rgba(0, 0, 0, 0.9)',
foreground_dark='rgba(0, 0, 0, 0.6)',
opacity='.5',
opacity_hover='.9',
transition='250ms ease-in',
colors=('#00b2f0', '#43d9be', '#0662ab',
darken('#00b2f0', 20),lighten('#43d9be', 20),
lighten('#7dcf30', 10), darken('#0662ab', 15),
'#ffd541', '#7dcf30', lighten('#00b2f0', 15), darken('#ffd541', 20))
)
self.tmpDir = tempfile.mkdtemp()
self.config = pygal.Config(style=mystyle,
legend_font_size=10,
width=500,height=250)
class DarkGreenStyle(Style):
"""A dark green style"""
background = darken('#251e01', 3)
plot_background = darken('#251e01', 1)
foreground = 'rgba(255, 255, 255, 0.9)'
foreground_strong = 'rgba(255, 255, 255, 0.9)'
foreground_subtle = 'rgba(255, 255, 255, 0.6)'
opacity = '.6'
opacity_hover = '.9'
transition = '250ms ease-in'
colors = ('#adde09', '#6e8c06', '#4a5e04', '#fcd202', '#C1E34D',
lighten('#fcd202', 25))
LightSolarizedStyle = Style(
background='#fdf6e3',
plot_background='#eee8d5',
foreground='#657b83',
foreground_light='#073642',
foreground_dark='#073642',
opacity='.6',
opacity_hover='.9',
transition='500ms ease-in',
colors=solarized_colors)
RedBlueStyle = Style(
background=lighten('#e6e7e9', 7),
plot_background=lighten('#e6e7e9', 10),
foreground='rgba(0, 0, 0, 0.9)',
foreground_light='rgba(0, 0, 0, 0.9)',
foreground_dark='rgba(0, 0, 0, 0.5)',
opacity='.6',
opacity_hover='.9',
colors=(
'#d94e4c', '#e5884f', '#39929a',
lighten('#d94e4c', 10), darken('#39929a', 15), lighten('#e5884f', 17),
darken('#d94e4c', 10), '#234547'))
LightColorizedStyle = Style(
background='#f8f8f8',
plot_background=lighten('#f8f8f8', 3),
LightSolarizedStyle = Style(
background='#fdf6e3',
plot_background='#eee8d5',
foreground='#657b83',
foreground_light='#073642',
foreground_dark='#073642',
opacity='.6',
opacity_hover='.9',
transition='500ms ease-in',
colors=solarized_colors)
RedBlueStyle = Style(
background=lighten('#e6e7e9', 7),
plot_background=lighten('#e6e7e9', 10),
foreground='rgba(0, 0, 0, 0.9)',
foreground_light='rgba(0, 0, 0, 0.9)',
foreground_dark='rgba(0, 0, 0, 0.5)',
opacity='.6',
opacity_hover='.9',
colors=(
'#d94e4c', '#e5884f', '#39929a',
lighten('#d94e4c', 10), darken('#39929a', 15), lighten('#e5884f', 17),
darken('#d94e4c', 10), '#234547'))
LightColorizedStyle = Style(
background='#f8f8f8',
plot_background=lighten('#f8f8f8', 3),