def randomize_hue(bg_hex):
color_obj = Color(bg_hex)
randomized = random.random()
color_obj.hue = randomized
sat = color_obj.saturation
color_obj.saturation = sat+randomized if (sat+randomized) <= 0.5 else 0.5
return color_obj.get_hex()
def generate_palette(_color, _hue_variance, _saturation_variance,
_luminance_variance):
base_color = Color(_color)
palette = [base_color.hex_l]
for i in range(1, 4):
new_color = Color(base_color)
new_color.hue = rotate_hue(base_color.hue, -(_hue_variance * i))
new_color.saturation = max(
0.0, base_color.saturation - (_saturation_variance * i))
new_color.luminance = max(
0.0, base_color.luminance - (_luminance_variance * i))
palette.append(new_color.hex_l)
for i in range(1, 4):
new_color = Color(base_color)
new_color.hue = rotate_hue(base_color.hue, (_hue_variance * i))
new_color.saturation = min(
1.0, base_color.saturation + (_saturation_variance * i))
new_color.luminance = min(
1.0, base_color.luminance + (_luminance_variance * i))
palette.insert(0, new_color.hex_l)
lighter_palette = []
for color in palette:
new_color = Color(color)
new_color.hue = rotate_hue(new_color.hue, -_hue_variance / 2)
new_color.saturation = max(
0.0, base_color.saturation - (_saturation_variance * i))
new_color.luminance = min(
1.0, base_color.luminance + (_luminance_variance * i))
lighter_palette.append(new_color.hex_l)
darker_palette = []
for color in palette:
new_color = Color(color)
new_color.hue = rotate_hue(new_color.hue, _hue_variance / 2)
new_color.saturation = min(
1.0, base_color.saturation + (_saturation_variance * i))
new_color.luminance = max(
0.0, base_color.luminance - (_luminance_variance * i))
darker_palette.append(new_color.hex_l)
palettes = [lighter_palette, palette, darker_palette]
return palettes
def color_for_count(count: int) -> ColorStr:
if not count:
return Color('white').get_hex()
c = Color('green')
max = 10
count_real = min(max, count)
c.hue = (max - count_real) / max * 0.33
c.saturation = 1.0
c.luminance = 0.7
return c.get_hex()
def poster():
# randon backgorund color
rand_rgb = tuple([(randrange(97, 160) / 255.0) for i in range(3)])
bg = Color(rgb=rand_rgb)
# get foreground
fg = Color(bg.hex)
variation = randrange(15, 60)
fg.hue = choice([variation, variation * -1])
# random alpha
alpha = randrange(4, 7) / 10.0
# create image
svg = render_template('poster.svg', bg=bg.hex, fg=fg.hex, alpha=alpha)
return Response(svg2png(bytestring=svg), mimetype='image/png')
def generate_background(self):
hue_offset = promap(int(self.hash[14:][:3], 16), 0, 4095, 0, 359)
sat_offset = int(self.hash[17:][:1], 16)
base_color = Color(hsl=(0, .42, .41))
base_color.hue = base_color.hue - hue_offset
if sat_offset % 2:
base_color.saturation = base_color.saturation + sat_offset / 100
else:
base_color.saturation = base_color.saturation - sat_offset / 100
rgb = base_color.rgb
r = int(round(rgb[0] * 255))
g = int(round(rgb[1] * 255))
b = int(round(rgb[2] * 255))
return self.svg.rect(0, 0, '100%', '100%',
**{'fill': 'rgb({}, {}, {})'.format(r, g, b)})
def poster():
# randon backgorund color
rand_rgb = tuple([(randrange(97, 160) / 255.0) for i in range(3)])
bg = Color(rgb=rand_rgb)
# get foreground
fg = Color(bg.hex)
variation = randrange(15, 60)
fg.hue = choice([variation, variation * -1])
# random alpha
alpha = randrange(4, 7) / 10.0
# create image
svg = render_template('poster.svg', bg=bg.hex, fg=fg.hex, alpha=alpha)
return Response(svg2png(bytestring=svg), mimetype='image/png')
def generate_background(self):
hue_offset = promap(int(self.hash[14:][:3], 16), 0, 4095, 0, 359)
sat_offset = int(self.hash[17:][:1], 16)
base_color = Color(hsl=(0, .42, .41))
base_color.hue = base_color.hue - hue_offset
if sat_offset % 2:
base_color.saturation = base_color.saturation + sat_offset / 100
else:
base_color.saturation = base_color.saturation - sat_offset / 100
rgb = base_color.rgb
r = int(round(rgb[0] * 255))
g = int(round(rgb[1] * 255))
b = int(round(rgb[2] * 255))
return self.svg.rect(0, 0, '100%', '100%', **{
'fill': 'rgb({}, {}, {})'.format(r, g, b)
})
def changecolour(colourcode, action, amount=100):
c = Color(colourcode)
if action == 'red':
c.red = amount / 100
return c
elif action == 'blue':
c.blue = amount / 100
return c
elif action == 'green':
c.green = amount / 100
return c
elif action == 'hue':
c.hue = amount / 100
return c
elif action == 'sat':
c.saturation = amount / 100
return c
elif action == 'lum':
c.luminance = amount / 100
return c
