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grayscale & divergenza in Y

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This commit is contained in:
lucaconte 2019-06-25 16:02:00 +02:00
parent 46a065d3d4
commit dfb9aef6f7
2 changed files with 56 additions and 42 deletions
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20
cfg.ini
View file

@ -2,14 +2,16 @@
FG_R_COLOR = 0.0
FG_G_COLOR = 0.0
FG_B_COLOR = 0.0
ServerAliveInterval = 45
Compression = yes
CompressionLevel = 9
ForwardX11 = yes
PAGE_W = 3508
PAGE_H = 2480
OFFSET_X = 100
OFFSET_Y = 500
GRID_W = 24
GRID_H = 13
SQUARE_SIZE=100
[bitbucket.org]
User = hg
[topsecret.server.com]
Port = 50022
ForwardX11 = no
RANDOM_STEP = 0.01
DAMPEN = 2.25
LINE_WIDTH = 5

78
divergenza.py
View file

@ -16,31 +16,44 @@ def plotSquares(ctx):
for i in range(0,w-1):
rsum += i*rs # add to the random value
ctx.save()
ctx.translate(s*i+1.1**i*dp, 0)
for j in range(0,h-1):
rv = random.uniform(-rsum, rsum)
# here comes the box :-)
#box = shapes.square(s)
# box position
#curr_cx = - w*s/2 + i*s + rv*dp ; curr_cy = - h*s/2 + j*s + rv*dp
# transforms.center_at(box, [curr_cx, curr_cy])
ctx.translate(s*i + deltaX(i), 0)
for j in range(0,h):
#
# # rotate the box of rv degrees around its center
# transforms.rotate(box, rv, pivot=(curr_cx, curr_cy))
# draw the damn box
# plotter.write(box)
#
#ctx.rotate(math.pi * 1 / 4)
ctx.translate(0, s)
ctx.save()
ctx.rotate(rv)
ctx.rectangle(0,0, s, s)
ctx.restore()
ctx.stroke()
rv = random.uniform(-rsum, rsum)
print str(abs(rv))
#grey = translate(abs(rv),0,2,0,0.7)
#ctx.set_source_rgb(grey,grey,grey)
ctx.save()
#remove 0 or relace it with 1 if ypu want Y devercence
ctx.translate(0, s*j + deltaY(i,j) * 0.8 )
ctx.rotate(rv)
ctx.rectangle(s/2,s/2, s, s)
ctx.restore()
ctx.stroke()
#ctx.fill()
ctx.restore()
def deltaY(i,j):
# return float(1.1*translate(j,0,h-1,-i*0.3,i*0.3)**2)
# print "nterpolazione di "+ str(j) + " : " + str(translate(j,-h/2,h/2,-math.pi/2,math.pi/2))
# return float(math.tan(translate(j,0,h-1,-math.pi/2,math.pi/2)))
return float(math.tan(translate(j,0,h,-1.37,1.56))*i)
def deltaX(i):
return float(1.31**i*dp)
def translate(value, leftMin, leftMax, rightMin, rightMax):
# Figure out how 'wide' each range is
leftSpan = leftMax - leftMin
rightSpan = rightMax - rightMin
# Convert the left range into a 0-1 range (float)
valueScaled = float(value - leftMin) / float(leftSpan)
# Convert the 0-1 range into a value in the right range.
if(value==h/2):
return 0
return rightMin + (valueScaled * rightSpan)
if len(sys.argv) < 2:
print("Plz specify output file as argument")
@ -49,27 +62,26 @@ if len(sys.argv) < 2:
config = configparser.ConfigParser()
config.read('cfg.ini')
#float RGB touple
FG_RGB_COLOR=(config['DEFAULT']['FG_R_COLOR'],config['DEFAULT']['FG_G_COLOR'],config['DEFAULT']['FG_B_COLOR'])
print type(config['DEFAULT']['FG_R_COLOR'])
FG_RGB_COLOR=(float(config['DEFAULT']['FG_R_COLOR']),float(config['DEFAULT']['FG_G_COLOR']),float(config['DEFAULT']['FG_B_COLOR']))
#A4 in 300 DPI
width, height = 3508,2480
offsetX, offsetY = 100,500
width, height = int(config['DEFAULT']['PAGE_W']),int(config['DEFAULT']['PAGE_H'])
offsetX, offsetY = int(config['DEFAULT']['OFFSET_X']),int(config['DEFAULT']['OFFSET_Y'])
w = 22 # width (how many squares - es. 22)
h = 12 # height (how many squares - es. 12)
s = 100 # square size (es. 15)
w = int(config['DEFAULT']['GRID_W']) # width (how many squares - es. 22)
h = int(config['DEFAULT']['GRID_H']) # height (how many squares - es. 12)
s = int(config['DEFAULT']['SQUARE_SIZE'])# square size (es. 15)
rs = 0.01 # random step (rotation increment in degrees)
dp = 2.25 # dampen (soften random effect for position)
rs = float(config['DEFAULT']['RANDOM_STEP']) # random step (rotation increment in degrees)
dp = float(config['DEFAULT']['DAMPEN']) # dampen (soften random effect for position)
rsum = 0 # dummy initial value for rsum
line_width = 2
line_width = int(config['DEFAULT']['LINE_WIDTH'])
surface = cairo.PDFSurface (sys.argv[1],width,height)
ctx = cairo.Context (surface)
ctx.set_source_rgb(config['DEFAULT']['FG_R_COLOR'],config['DEFAULT']['FG_G_COLOR'],config['DEFAULT']['FG_B_COLOR'])
ctx.set_source_rgb(FG_RGB_COLOR[0],FG_RGB_COLOR[1],FG_RGB_COLOR[2],)
ctx.set_line_width(line_width)
ctx.translate(offsetX, offsetY)
plotSquares(ctx)