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flower.py
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flower.py
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import numpy as np
import cv2
from petal import Petal
from colorer import Colorer
class Flower():
"""
Flower class. Draw the flower level by level with another count of petals on each level.
Draw center of flower.
Parameters
---------
img_size: int
The image size, where flower should be drawn, default=300
center_size: int
Size of flower center default=40
center_color: tuple
Color of flower center default=(1,1,0)
fill_color: tuple
Color of petal filling before gradient filling to check petal borders default=(0.5,0.5,0.5)
levels_cnt: int
Flower levels count default=2
fill_type: str
Gradient filling type, can be 'top_down', 'diagonal' or 'center' default='center'
petal_cnt: list or int or 'random'
List of petal count for each level with length = levels_cnt, default='random'
petal_kinds: list or int or 'random'
List of petal kind (id) for each level with length = levels_cnt, default='random'
scale: list or int or 'random'
List of scale values for each level with length = levels_cnt, default='random'
scale_x: list or int or 'random'
List of scale_x values (to narrow or wide) for each level with length = levels_cnt, default='random'
Attributes
---------
petal: Petal
Petal object, generates new petal for each level
colorer: Colorer
Colorer object make gradient filling and manage colors
fill_color: tuple
Color to fill petal before making gradient filling
levels_cnt: int
Flower levels count
img: numpy.array
Image containing flower
img_size: int
One number for square image, value of square side
petal_cnt: list or int or 'random'
list : a list of petal count for each level
int: means that on each level there will be same petal count
'random': a list of random petal count for each level will be generated
petal_kinds: list or int or 'random'
list : a list of petal kind for each level
int: means that on each level there will be same petal kind
'random': a list of random petal kind for each level will be generated
scale: list or int or 'random'
list : a list of petal scaling (common petal size) for each level
int: means that on each level there will be same petal scaling
'random': a list of random petal scaling for each level will be generated
scale_x: list or int or 'random'
list : a list of petal scaling (narrow or wide) for each level
int: means that on each level there will be same petal scaling
'random': a list of random petal scaling for each level will be generated
"""
PETAL_CNT_MAX = 7
PETAL_CNT_MIN = 4
SHIFT_DEGREE = 60
SCALE_LEFT = 90
SCALE_RIGHT = 100
BORDER_DARKNESS = 2.5
def __init__(self,
img_size=300,
center_size=40,
center_color=(1,1,0),
fill_color=(0.5,0.5,0.5),
levels_cnt=2,
fill_type = 'center',
petal_cnt='random',
petal_kinds='random',
scale='random',
scale_x='random'):
self.petal = Petal()
self.colorer = Colorer(fill_type)
self.fill_color = fill_color
self.levels_cnt = levels_cnt
self.img = np.ones((img_size,img_size,3))#RGB channels
self.img_size = img_size
self.make_center(center_color,center_size)
self.__parse_petal_count(petal_cnt)
self.__parse_petal_kinds(petal_kinds)
self.__parse_scale(scale)
self.__parse_scale_x(scale_x)
def make_center(self, color,center_size):
center_coordinate = int(np.round(self.img_size/2))
cv2.circle(self.img, (center_coordinate,center_coordinate), center_size, color,-1)
def rotate(self ,point,f):
b = [[np.cos(np.deg2rad(f)),np.sin(np.deg2rad(f))],
[-np.sin(np.deg2rad(f)), np.cos(np.deg2rad(f))]]
res = [a for a in np.dot(point,b)]
return [int(np.round(a,5)) for a in res]
def prepare_points(self, contour, points_in_contour, center_dist, angle, shift):
cntr = [[a[0] -center_dist, a[1]-center_dist] for a in contour]
cntr = [self.rotate(a,angle) for a in cntr]
cntr = [[a[0] + shift, a[1]+shift] for a in cntr]
points_in = [[[a[0] -center_dist, a[1]-center_dist] for a in row] for row in points_in_contour]
points_in = [[self.rotate(a,angle) for a in row] for row in points_in]
points_in = [[[a[0] +shift, a[1]+shift] for a in row] for row in points_in]
return np.array(cntr), points_in
def draw_level(self,level_size, petal_cnt, petal_num,center_dist = 0,grad_colors=None,scale=100,scale_x=0):
grad_color_from, grad_color_to, border_color = self.__parse_grad_colors(grad_colors)
# the div numbers is based on logic - center and proportion of petals to image
img_size_div_2 = int(np.round(self.img_size/2))
lvl_size_div_3 = int(np.round(level_size/3))
# probability to make petal more narrow or wide
uz = np.random.randint(0,10) > 5
contour = self.petal.draw(lvl_size_div_3, petal_num, True, uz, scale, scale_x)
img_size_new = int(np.round((lvl_size_div_3/scale)*120))
points_in_contour = self.colorer.get_points(contour, img_size_new)
# find angle to rotate every petal by petal
angle = int(np.round(360/petal_cnt))
pred_angle = np.random.randint(self.SHIFT_DEGREE)
for i in range(petal_cnt):
cntr, points_in = self.prepare_points(contour,
points_in_contour,
center_dist,
pred_angle,
img_size_div_2)
pred_angle = pred_angle + angle
cv2.fillPoly(self.img, pts =[cntr], color=self.fill_color)
cv2.drawContours(self.img, [cntr], -1, color = border_color,thickness=1)
self.colorer.fill(self.img, cntr, points_in, grad_color_from, grad_color_to, self.fill_color)
def draw(self, grad_colors='hot'):
level_size = self.img_size
for i in range(self.levels_cnt):
self.draw_level(level_size,
self.petal_cnt[i],
self.petal_kinds[i],
grad_colors=grad_colors,
center_dist=np.random.randint(0,20)-10,
scale=self.scale[i],
scale_x=self.scale_x[i])
level_size = int(np.round(level_size*(np.random.randint(5,8)/10)))
def __parse_grad_colors(self, grad_colors):
if not grad_colors:
[grad_color_from, grad_color_to, border_color] = self.colorer.get_random_colors()
elif type(grad_colors) == str:
[grad_color_from, grad_color_to, border_color] = self.colorer.get_colors(grad_colors)
else:
[grad_color_from, grad_color_to, border_color] = grad_colors
border_color = [a/self.BORDER_DARKNESS for a in border_color]
return grad_color_from, grad_color_to, border_color
def __parse_petal_count(self, petal_cnt):
if petal_cnt == 'random':
self.petal_cnt = [np.random.randint(self.PETAL_CNT_MIN,
self.PETAL_CNT_MAX) for i in range(self.levels_cnt)]
elif type(petal_cnt) == int:
self.petal_cnt = [petal_cnt for i in range(self.levels_cnt)]
else:
self.petal_cnt = petal_cnt
def __parse_petal_kinds(self, petal_kinds):
if petal_kinds == 'random':
self.petal_kinds = [np.random.randint(1,len(self.petal.kp)+1) for i in range(self.levels_cnt)]
elif type(petal_kinds) == int:
self.petal_kinds = [petal_kinds for i in range(self.levels_cnt)]
else:
self.petal_kinds = petal_kinds
def __parse_scale(self, scale):
if scale == 'random':
self.scale = [np.random.randint(self.SCALE_LEFT, self.SCALE_RIGHT) for i in range(self.levels_cnt)]
elif type(scale) == int:
self.scale = [scale for i in range(self.levels_cnt)]
else:
self.scale = scale
def __parse_scale_x(self, scale_x):
if scale_x == 'random':
self.scale_x = [np.random.randint(0,40)/100 for i in range(self.levels_cnt)]
elif type(scale_x) == int:
self.scale_x = [scale_x for i in range(self.levels_cnt)]
else:
self.scale_x = scale_x