This commit is contained in:
yumoqing 2020-02-26 20:48:52 +08:00
parent d1463f7f94
commit 192ceb7c68
2 changed files with 170 additions and 0 deletions

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kivyblocks/colorcalc.py Normal file
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from kivy.utils import get_color_from_hex
from kivy.app import App
from kivy.uix.widget import Widget
from kivy.graphics import Color, Rectangle, Ellipse
from kivy.uix.boxlayout import BoxLayout
import math
def toArrayColor(color):
if isinstance(color,str):
sc = color
return get_color_from_hex(sc)
return color
def distance(color1,color2):
color1 = toArrayColor(color1)
color2 = toArrayColor(color2)
x = math.pow(abs(color2[0] - color1[0]),2) + \
math.pow(abs(color2[1] - color1[1]),2) + \
math.pow(abs(color2[2] - color1[2]),2)
d = math.sqrt(x)
def reverseColor(color):
center = [0.5,0.5,0.5]
if color == [0.5,0.5,0.5]:
return [1,1,1]
d = distance(color,center)
d1 = d + 0.5
point= [0,0,0]
for i in range(3):
m = color[i] - center[i]
m1 = m * d1 / d
point[i] = color[i] - m1 if m < 0? color[i] + m1
return point
#DIVIDE
def divideColor(color1,color2,divide_cnt):
color1 = toArrayColor(color1)
color2 = toArrayColor(color2)
return divide(color1,color2,divide_cnt)
def divide(point1,point2,divide_cnt):
ps = [point1]
dim = len(point1)
for i in range(1,divide_cnt):
p = []
cnt = divide_cnt
for j in range(dim):
m = (i*point2[j] + (cnt - i) * point1[j]) / cnt
p.append(m)
ps.append(p)
ps.append(point2)
return ps
class Bar(Widget):
"""
a BAR class
"""
def __init__(self,**options):
"""
options={
width,
height,
title,
keyField,
valueField,
data=[
{
name,
value,
},{
}
]
}
"""
self.options = options
self.initflag = False
super().__init__()
self.bind(size=self.onSize,pos=self.onSize)
def data2bar(self):
data = self.options.get('data',[])
kvs = [ [i[self.options['keyField']],i[self.options['valueField']]] for i in data ]
m = max([i[1] for i in kvs ])
cnt = len(kvs)
points = divide([0,0],[self.width,0],cnt)
color1='8833ee'
color2='ed8234'
colors = divideColor(color1,color2,cnt-1)
self.canvas.clear()
for i in range(cnt):
h = self.height * kvs[i][1] / m
with self.canvas:
Color(*colors[i])
Rectangle(pos=points[i],
size=(points[i+1][0] - points[i][0],h))
def onSize(self,o,v):
self.build()
def build(self):
self.initflag = True
self.data2bar()
class Pie(Widget):
def __init__(self,**options):
"""
options={
width,
height,
title,
keyField,
valueField,
data=[
{
name,
value,
},{
}
]
}
"""
self.options = options
self.initflag = False
super().__init__()
self.bind(size=self.onSize,pos=self.onSize)
def data2pie(self):
data = self.options.get('data',[])
kvs = [ [i[self.options['keyField']],i[self.options['valueField']]] for i in data ]
total = sum([i[1] for i in kvs ])
start_degree = 0
cnt = len(kvs)
color1='8833ee'
color2='ed8234'
colors = divideColor(color1,color2,cnt-1)
self.canvas.clear()
for i in range(cnt):
degree = start_degree + 360 * kvs[i][1] / total
with self.canvas:
Color(*colors[i])
Ellipse(pos=self.pos,
size=self.size,
angle_start=start_degree,
angle_end= degree)
start_degree = degree
def onSize(self,o,v):
self.data2pie()
class MyApp(App):
def build(self):
d = {
"keyField":"name",
"valueField":"value",
"data":[
{'name':'you','value':102.0},
{'name':'me','value':42.0},
{'name':'she','value':92.0},
{'name':'she','value':52.0},
{'name':'she','value':42.0},
{'name':'she','value':82.0},
{'name':'she','value':17.0},
{'name':'he','value':77.0}
]
}
return Pie(**d)
if __name__ == '__main__':
MyApp().run()