116 lines
4.0 KiB
Python
Executable File
116 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python
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"""gen_pattern.py
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Usage example:
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python gen_pattern.py -o out.svg -r 11 -c 8 -T circles -s 20.0 -R 5.0 -u mm -w 216 -h 279
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-o, --output - output file (default out.svg)
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-r, --rows - pattern rows (default 11)
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-c, --columns - pattern columns (default 8)
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-T, --type - type of pattern, circles, acircles, checkerboard (default circles)
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-s, --square_size - size of squares in pattern (default 20.0)
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-R, --radius_rate - circles_radius = square_size/radius_rate (default 5.0)
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-u, --units - mm, inches, px, m (default mm)
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-w, --page_width - page width in units (default 216)
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-h, --page_height - page height in units (default 279)
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-H, --help - show help
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"""
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from svgfig import *
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import sys
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import getopt
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class PatternMaker:
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def __init__(self, cols,rows,output,units,square_size,radius_rate,page_width,page_height):
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self.cols = cols
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self.rows = rows
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self.output = output
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self.units = units
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self.square_size = square_size
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self.radius_rate = radius_rate
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self.width = page_width
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self.height = page_height
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self.g = SVG("g") # the svg group container
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def makeCirclesPattern(self):
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spacing = self.square_size
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r = spacing / self.radius_rate
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for x in range(1,self.cols+1):
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for y in range(1,self.rows+1):
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dot = SVG("circle", cx=x * spacing, cy=y * spacing, r=r, fill="black")
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self.g.append(dot)
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def makeACirclesPattern(self):
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spacing = self.square_size
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r = spacing / self.radius_rate
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for i in range(0,self.rows):
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for j in range(0,self.cols):
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dot = SVG("circle", cx= ((j*2 + i%2)*spacing) + spacing, cy=self.height - (i * spacing + spacing), r=r, fill="black")
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self.g.append(dot)
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def makeCheckerboardPattern(self):
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spacing = self.square_size
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for x in range(1,self.cols+1):
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for y in range(1,self.rows+1):
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if x%2 == y%2:
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dot = SVG("rect", x=x * spacing, y=y * spacing, width=spacing, height=spacing, stroke_width="0", fill="black")
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self.g.append(dot)
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def save(self):
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c = canvas(self.g,width="%d%s"%(self.width,self.units),height="%d%s"%(self.height,self.units),viewBox="0 0 %d %d"%(self.width,self.height))
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c.inkview(self.output)
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def main():
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# parse command line options, TODO use argparse for better doc
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try:
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opts, args = getopt.getopt(sys.argv[1:], "Ho:c:r:T:u:s:R:w:h:", ["help","output=","columns=","rows=",
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"type=","units=","square_size=","radius_rate=",
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"page_width=","page_height="])
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except getopt.error, msg:
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print msg
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print "for help use --help"
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sys.exit(2)
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output = "out.svg"
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columns = 8
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rows = 11
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p_type = "circles"
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units = "mm"
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square_size = 20.0
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radius_rate = 5.0
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page_width = 216 #8.5 inches
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page_height = 279 #11 inches
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# process options
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for o, a in opts:
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if o in ("-H", "--help"):
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print __doc__
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sys.exit(0)
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elif o in ("-r", "--rows"):
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rows = int(a)
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elif o in ("-c", "--columns"):
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columns = int(a)
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elif o in ("-o", "--output"):
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output = a
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elif o in ("-T", "--type"):
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p_type = a
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elif o in ("-u", "--units"):
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units = a
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elif o in ("-s", "--square_size"):
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square_size = float(a)
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elif o in ("-R", "--radius_rate"):
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radius_rate = float(a)
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elif o in ("-w", "--page_width"):
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page_width = float(a)
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elif o in ("-h", "--page_height"):
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page_height = float(a)
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pm = PatternMaker(columns,rows,output,units,square_size,radius_rate,page_width,page_height)
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#dict for easy lookup of pattern type
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mp = {"circles":pm.makeCirclesPattern,"acircles":pm.makeACirclesPattern,"checkerboard":pm.makeCheckerboardPattern}
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mp[p_type]()
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#this should save pattern to output
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pm.save()
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if __name__ == "__main__":
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main()
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