94 lines
2.8 KiB
Python
Executable file
94 lines
2.8 KiB
Python
Executable file
#!/usr/bin/python
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'''
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Schotter pdf reproduction
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It design SchotterR
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Author: Luca COnte ''
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Website: polybius.fyi
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Last edited: June 2019
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'''
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import math,cairo,random,sys,configparser
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def plotSquares(ctx):
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global rsum
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for i in range(0,w-1):
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rsum += i*rs # add to the random value
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ctx.save()
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ctx.translate(s*i + deltaX(i), 0)
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for j in range(0,h):
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#
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rv = random.uniform(-rsum, rsum)
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print str(abs(rv))
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#grey = translate(abs(rv),0,2,0,0.7)
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#ctx.set_source_rgb(grey,grey,grey)
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ctx.save()
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#remove 0 or relace it with 1 if ypu want Y devercence
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ctx.translate(0, s*j + deltaY(i,j) * 0.8 )
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ctx.rotate(rv)
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ctx.rectangle(s/2,s/2, s, s)
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ctx.restore()
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ctx.stroke()
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#ctx.fill()
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ctx.restore()
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def deltaY(i,j):
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# return float(1.1*translate(j,0,h-1,-i*0.3,i*0.3)**2)
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# print "nterpolazione di "+ str(j) + " : " + str(translate(j,-h/2,h/2,-math.pi/2,math.pi/2))
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# return float(math.tan(translate(j,0,h-1,-math.pi/2,math.pi/2)))
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return float(math.tan(translate(j,0,h,-1.37,1.56))*i)
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def deltaX(i):
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return float(1.31**i*dp)
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def translate(value, leftMin, leftMax, rightMin, rightMax):
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# Figure out how 'wide' each range is
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leftSpan = leftMax - leftMin
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rightSpan = rightMax - rightMin
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# Convert the left range into a 0-1 range (float)
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valueScaled = float(value - leftMin) / float(leftSpan)
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# Convert the 0-1 range into a value in the right range.
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if(value==h/2):
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return 0
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return rightMin + (valueScaled * rightSpan)
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if len(sys.argv) < 2:
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print("Plz specify output file as argument")
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sys.exit(1)
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config = configparser.ConfigParser()
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config.read('cfg.ini')
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#float RGB touple
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FG_RGB_COLOR=(float(config['DEFAULT']['FG_R_COLOR']),float(config['DEFAULT']['FG_G_COLOR']),float(config['DEFAULT']['FG_B_COLOR']))
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#A4 in 300 DPI
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width, height = int(config['DEFAULT']['PAGE_W']),int(config['DEFAULT']['PAGE_H'])
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offsetX, offsetY = int(config['DEFAULT']['OFFSET_X']),int(config['DEFAULT']['OFFSET_Y'])
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w = int(config['DEFAULT']['GRID_W']) # width (how many squares - es. 22)
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h = int(config['DEFAULT']['GRID_H']) # height (how many squares - es. 12)
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s = int(config['DEFAULT']['SQUARE_SIZE'])# square size (es. 15)
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rs = float(config['DEFAULT']['RANDOM_STEP']) # random step (rotation increment in degrees)
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dp = float(config['DEFAULT']['DAMPEN']) # dampen (soften random effect for position)
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rsum = 0 # dummy initial value for rsum
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line_width = int(config['DEFAULT']['LINE_WIDTH'])
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surface = cairo.PDFSurface (sys.argv[1],width,height)
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ctx = cairo.Context (surface)
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ctx.set_source_rgb(FG_RGB_COLOR[0],FG_RGB_COLOR[1],FG_RGB_COLOR[2],)
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ctx.set_line_width(line_width)
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ctx.translate(offsetX, offsetY)
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plotSquares(ctx)
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ctx.show_page()
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