73 lines
1.9 KiB
Python
73 lines
1.9 KiB
Python
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import argparse
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import cv2
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import numpy as np
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IN=25.4
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DPI=600
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MINLINE=150
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def create_blank(width, height):
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rgb_color=(255,255,255)
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image = np.zeros((height, width, 3), np.uint8)
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color = tuple(reversed(rgb_color))
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image[:] = color
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return image
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def guide (args) :
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if 'dpi' in args :
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DPI = args.dpi
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line = round(DPI/MINLINE)
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halfLine = round(line/2)
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if line == 1 :
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halfLine = 1
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dims = args.dimensions.split('x')
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w = int(dims[0])
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h = int(dims[1])
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halfW = round(w/2)
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halfH = round(h/2)
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tenthW = round(w/10)
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tenthH = round(h/10)
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img = create_blank(w, h)
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print(line)
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print(w)
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print(h)
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# bisect
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cv2.line(img, (halfW, 0,), (halfW, h,), [0, 0, 0], line)
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cv2.line(img, (0, halfH,), (w, halfH,), [0, 0, 0], line)
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# outline
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cv2.line(img, (halfLine, 0,), (halfLine, h,), [0, 0, 0], line)
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cv2.line(img, (w-halfLine, 0,), (w-halfLine, h,), [0, 0, 0], line)
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cv2.line(img, (0, halfLine,), (w, halfLine,), [0, 0, 0], line)
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cv2.line(img, (0, h-halfLine,), (w, h-halfLine,), [0, 0, 0], line)
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# ticks
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for i in range(0, 9) :
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y1 = round(halfH + ((i + 1) * (tenthH/2)))
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y2 = round(halfH - ((i + 1) * (tenthH/2)))
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cv2.line(img, (halfW - round(tenthW/4), y1,), (halfW + round(tenthW/4), y1,), [0, 0, 0], line)
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cv2.line(img, (halfW - round(tenthW/4), y2,), (halfW + round(tenthW/4), y2,), [0, 0, 0], line)
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x1 = round(halfW + ((i + 1) * (tenthW/2)))
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x2 = round(halfW - ((i + 1) * (tenthW/2)))
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cv2.line(img, (x1, halfH - round(tenthH/4),), (x1, halfH + round(tenthH/4),), [0, 0, 0], line)
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cv2.line(img, (x2, halfH - round(tenthH/4),), (x2, halfH + round(tenthH/4),), [0, 0, 0], line)
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cv2.imwrite(args.output, img)
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def main () :
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parser = argparse.ArgumentParser()
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parser.add_argument('output', help='Output file')
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parser.add_argument('--dpi', '-d', help='DPI', required=False, type=int, default=600)
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parser.add_argument('--dimensions', '-D', help='Dimensions of image', required=True, type=str)
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args = parser.parse_args()
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guide(args)
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main()
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