kopia lustrzana https://github.com/fellesverkstedet/fabmodules
541 wiersze
22 KiB
Python
541 wiersze
22 KiB
Python
# cad_text.py
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# Tools to generate text in the cad format.
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# Assembled by Matt Keeter (with code from Neil Gershenfeld)
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# matt.keeter@cba.mit.edu
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# kokompe.cba.mit.edu
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###############################################################################
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# Usage:
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# text(text, x, y, height = None, align = 'CC'):
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# text is the desired string
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# x, y are the position
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# height is the glyph height. Defaults to the current font height.
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# align sets horizontal (C/L/R) and vertical (C/T/B) alignment
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# set_font(height)
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# Pre-renders a set of font glyphs for a given glyph height.
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# When text() is called, it uses the precalculated glyph set if the height is
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# correct; otherwise, it renders glyphs of the appropriate height.
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#
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# Prerendering glyphs of the appropriate size with set_font() can save time
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# that would be spent regenerating the font with every call to text().
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###############################################################################
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from cad_shapes import *
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def make_glyphs(height = 1.0, width = None, line = None):
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if not width:
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width = 2*height/3
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if not line:
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line = height / 6
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glyphs = {}
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shape = triangle(0, 0, width/2, height, width, 0)
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shape = subtract(shape, triangle(line, 0, width/2, height - line*2, width - line, 0))
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shape = add(shape, rectangle(line, width - line, height/4 - line/2, height/4 + line/2))
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glyphs['A'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2 - line))
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shape = add(shape,rectangle(width-line,width,0,height/3))
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glyphs['a'] = shape
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shape = rectangle(0, 2*line, 0, height/2 + line/2)
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shape = add(shape, circle(2*line, height/4 + line/4, height/4 + line/4))
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shape = subtract(shape, circle(2*line, height/4 + line/4, height/4 - 3*line/4))
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shape = subtract(shape, rectangle(line, 2*line, line, height/2 - line/2))
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shape = add(shape, move(shape,0, height/2 - line/2))
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glyphs['B'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2 - line))
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shape = add(shape,rectangle(0,line,0,height))
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glyphs['b'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = add(shape,circle(width/2,height-width/2,width/2))
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shape = add(shape,rectangle(0,width,width/2, height-width/2))
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shape = subtract(shape,circle(width/2,width/2,width/2 - line))
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shape = subtract(shape,circle(width/2,height -width/2,width/2 - line))
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shape = subtract(shape,rectangle(line,width,width/2, height-width/2))
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glyphs['C'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2 - line))
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shape = subtract(shape,rectangle(width/2,width,width/2-1/(2*line),width/2+1/(2*line)))
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glyphs['c'] = shape
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shape = circle(line,height/2,height/2)
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shape = subtract(shape,circle(line,height/2,height/2 - line))
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shape = subtract(shape,rectangle(line-height/2,line,0,height))
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shape = add(shape,rectangle(0,line,0,height))
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glyphs['D'] = shape
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shape = rectangle(width-line,width,0,height)
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shape = add(shape,circle(width/2,width/2,width/2))
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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glyphs['d'] = shape
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shape = rectangle(0,line,0,height)
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shape = add(shape,rectangle(0,width,height-line,height))
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shape = add(shape,rectangle(0,2*width/3,height/2-line/2,height/2+line/2))
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shape = add(shape,rectangle(0,width,0,line))
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glyphs['E'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = subtract(shape,triangle(width,0,width/2,width/2-line/2,width,width/2-line/2))
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shape = add(shape,rectangle(line/2,width-line/2,width/2-line/2,width/2+line/2))
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glyphs['e'] = shape
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shape = rectangle(0,line,0,height)
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shape = add(shape,rectangle(0,width,height-line,height))
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shape = add(shape,rectangle(0,2*width/3,height/2-line/2,height/2+line/2))
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glyphs['F'] = shape
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shape = circle(width-line/2,height-width/2,width/2)
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shape = subtract(shape,circle(width-line/2,height-width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width-line/2,0,height-width/2))
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shape = subtract(shape,rectangle(width-line/2,2*width,0,height))
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shape = add(shape,rectangle(width/2-line/2,width/2+line/2,0,height-width/2))
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shape = add(shape,rectangle(width/5,4*width/5,height/2-line/2,height/2+line/2))
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glyphs['f'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = add(shape,circle(width/2,height-width/2,width/2))
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shape = add(shape,rectangle(0,width,width/2, height-width/2))
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shape = subtract(shape,circle(width/2,width/2,width/2 - line))
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shape = subtract(shape,circle(width/2,height -width/2,width/2 - line))
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shape = subtract(shape,rectangle(line,width,width/2, height-width/2))
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shape = add(shape, rectangle(width/2, width, width/2, width/2 + line))
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glyphs['G'] = shape
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shape = circle(width/2, 0, width/2)
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shape = subtract(shape, circle(width/2, 0, width/2 - line))
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shape = subtract(shape, rectangle(0, width, 0, height))
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shape = add(shape, circle(width/2,width/2,width/2))
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = add(shape,rectangle(width-line,width,0,width))
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glyphs['g'] = shape
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shape = rectangle(0,line,0,height)
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shape = add(shape,rectangle(width-line,width,0,height))
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shape = add(shape,rectangle(0,width,height/2-line/2,height/2+line/2))
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glyphs['H'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width,0,width/2))
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shape = add(shape,rectangle(0,line,0,height))
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shape = add(shape,rectangle(width-line,width,0,width/2))
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glyphs['h'] = shape
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shape = rectangle(width/2-line/2,width/2+line/2,0,height)
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shape = add(shape,rectangle(width/5,4*width/5,0,line))
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shape = add(shape,rectangle(width/5,4*width/5,height-line,height))
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glyphs['I'] = shape
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shape = rectangle(width/2-line/2,width/2+line/2,0,height/2)
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shape = add(shape,circle(width/2,3*height/4,3*line/5))
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glyphs['i'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width,width/2,height))
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shape = add(shape,rectangle(width-line,width,width/2,height))
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glyphs['J'] = shape
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shape = circle(width/2, 0, width/2)
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shape = subtract(shape, circle(width/2, 0, width/2 - line))
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shape = subtract(shape, rectangle(0, width, 0, height))
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shape = add(shape,rectangle(width-line,width,0,height/2))
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shape = add(shape,circle(width-line/2,3*height/4,3*line/5))
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glyphs['j'] = shape
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shape = rectangle(0,width,0,height)
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shape = subtract(shape,triangle(line,height,width-line,height,line,height/2+line))
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shape = subtract(shape,triangle(width,0,1.5*line,height/2,width,height))
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shape = subtract(shape,triangle(line,0,line,height/2-line,width-line,0))
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glyphs['K'] = shape
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shape = rectangle(0,3*width/4,0,height)
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shape = subtract(shape,triangle(line,height,width-line,height,line,height/3+line))
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shape = subtract(shape,triangle(3*width/4,0,1.5*line,height/3,width,height))
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shape = subtract(shape,triangle(line,0,line,height/2.5-line,3*width/4-line,0))
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shape = subtract(shape, rectangle(line, width, 3*height/4, height))
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glyphs['k'] = shape
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shape = rectangle(0,line,0,height)
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shape = add(shape,rectangle(0,width,0,line))
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glyphs['L'] = shape
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shape = rectangle(width/2-line/2,width/2+line/2,0,height)
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glyphs['l'] = shape
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shape = rectangle(0,width,0,height)
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shape = subtract(shape,triangle(line,0,line,height/2,width/2-line/3,0))
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shape = subtract(shape,triangle(line,height,width-line,height,width/2,height/4))
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shape = subtract(shape,triangle(width/2+line/3,0,width-line,height/2,width-line,0))
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glyphs['M'] = shape
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shape = circle(width/4 + line/4, width/2, width/4 + line/4)
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shape = subtract(shape, circle(width/4 + line/4, width/2, width/4 - 3*line/4))
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shape = subtract(shape, rectangle(0, width, 0, width/2))
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shape = add(shape, move(shape, width/2 - line/2, 0))
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shape = add(shape, rectangle(0, line, 0, width/2 + line))
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shape = add(shape, rectangle(width/2-line/2, width/2+line/2, 0, width/2))
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shape = add(shape, rectangle(width-line, width, 0, width/2))
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glyphs['m'] = shape
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shape = rectangle(0,width,0,height)
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shape = subtract(shape,triangle(4*line/3,height,width-line,height,width-line,height/4))
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shape = subtract(shape,triangle(line,0,line,3*height/4,width - 4*line/3,0))
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glyphs['N'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width,0,width/2))
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shape = add(shape,rectangle(0,line,0,width))
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shape = add(shape,rectangle(width-line,width,0,width/2))
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glyphs['n'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = add(shape,circle(width/2,height-width/2,width/2))
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shape = add(shape,rectangle(0,width,width/2, height-width/2))
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shape = subtract(shape,circle(width/2,width/2,width/2 - line))
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shape = subtract(shape,circle(width/2,height -width/2,width/2 - line))
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shape = subtract(shape,rectangle(line,width-line,width/2, height-width/2))
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glyphs['O'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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glyphs['o'] = shape
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# P scales a bit strangely
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shape = rectangle(0,line,0,height)
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shape = add(shape,circle(width/2,height-width/2,width/2))
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shape = add(shape,rectangle(0,width/2,height-width,height))
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shape = subtract(shape,circle(width/2,height-width/2,width/2-line))
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shape = subtract(shape,rectangle(line,width/2,height-width+line,height-line))
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glyphs['P'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = add(shape,rectangle(0,line,-height/3,width))
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glyphs['p'] = shape
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shape = glyphs['O']
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shape = add(shape,move(rotate(rectangle(-line/2,line/2,-width/4,width/4),30),3*width/4,width/4))
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glyphs['Q'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = add(shape,rectangle(width-line,width,-height/3,width))
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glyphs['q'] = shape
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shape = triangle(line,0,line,height,width,0)
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shape = subtract(shape,triangle(line,0,line,height-line*2,width-line,0))
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shape = subtract(shape,rectangle(0,width,height/3 + line/2,height))
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shape = add(glyphs['P'],shape)
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glyphs['R'] = shape
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shape = circle(width,0,width)
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shape = subtract(shape,circle(width,0,width-line))
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shape = subtract(shape,rectangle(.8*width,2*width,-width,width))
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shape = subtract(shape,rectangle(0,width,-width,0))
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shape = add(shape,rectangle(0,line,0,width))
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glyphs['r'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width/2,width/2,width))
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shape = add(shape,move(reflect_y(reflect_x(shape,width),width),0,width-line))
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shape = scale_y(shape,0,height/(2*width-line))
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glyphs['S'] = shape
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w = width/3
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shape = circle(w,w,w)
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shape = subtract(shape,circle(w,w,w-line*0.9))
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shape = subtract(shape,rectangle(0,w,w,2*w))
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shape = add(shape,move(reflect_y(reflect_x(shape,2*w),2*w),0,2*w-line*.9))
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shape = scale_y(shape,0,(2*height/3)/(4*w-line*.9))
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shape = move(shape,(width/2)-w,0)
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glyphs['s'] = shape
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shape = rectangle(width/2-line/2,width/2+line/2,0,height)
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shape = add(shape,rectangle(0,width,height-line,height))
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glyphs['T'] = shape
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shape = circle(0,3*width/8,3*width/8)
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shape = subtract(shape,circle(0,3*width/8,3*width/8-line))
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shape = subtract(shape,rectangle(-width,width,3*width/8,height))
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shape = subtract(shape,rectangle(0,width,-height,height))
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shape = move(shape,width/2-line/2+3*width/8,0)
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shape = add(shape,rectangle(width/2-line/2,width/2+line/2,width/4,3*height/4))
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shape = add(shape,rectangle(width/5,4*width/5,height/2-line/2,height/2+line/2))
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glyphs['t'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width,width/2,height))
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shape = add(shape,rectangle(0,line,width/2,height))
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shape = add(shape,rectangle(width-line,width,width/2,height))
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glyphs['U'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width,width/2,height))
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shape = add(shape,rectangle(0,line,width/2,2*height/3))
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shape = add(shape,rectangle(width-line,width,0,2*height/3))
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glyphs['u'] = shape
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shape = triangle(0,height,width,height,width/2,0)
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shape = subtract(shape,triangle(0,height+3*line,width,height+3*line,width/2,3*line))
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glyphs['V'] = shape
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w = 2*height/3.0
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shape = triangle(0,w,width,w,width/2,0)
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shape = subtract(shape,triangle(0,w+2*line,width,w+2*line,width/2,2*line))
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glyphs['v'] = shape
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shape = triangle(0,height,width,height,width/2,0)
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shape = add(shape,move(shape,.6*width,0))
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cutout = triangle(0,height+4*line,width,height+4*line,width/2,4*line)
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cutout = add(cutout,move(cutout,.6*width,0))
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shape = subtract(shape,cutout)
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shape = scale_x(shape,0,1/1.6)
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glyphs['W'] = shape
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glyphs['w'] = scale_y(glyphs['W'],0,width/height)
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shape = rectangle(0,width,0,height)
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shape = subtract(shape,triangle(0,0,0,height,width/2-.7*line,height/2))
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shape = subtract(shape,triangle(width,0,width/2+.7*line,height/2,width,height))
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shape = subtract(shape,triangle(line,height,width-line,height,width/2,height/2+line))
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shape = subtract(shape,triangle(line,0,width/2,height/2-line,width-line,0))
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glyphs['X'] = shape
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glyphs['x'] = scale_y(glyphs['X'], 0, width/height)
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shape = rectangle(0,width,height/2,height)
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shape = subtract(shape,triangle(0,height/2,0,height,width/2-line/2,height/2))
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shape = subtract(shape,triangle(width/2+line/2,height/2,width,height,width,height/2))
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shape = subtract(shape,triangle(1.1*line,height,width-1.1*line,height,width/2,height/2+1.1*line))
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shape = add(shape,rectangle(width/2-line/2,width/2+line/2,0,height/2))
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glyphs['Y'] = shape
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shape = rectangle(0,width,-height/3,width)
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shape = subtract(shape,triangle(0,-height/3,0,width,width/2-line*0.8,0))
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shape = subtract(shape,triangle(1.1*line,width,width-1.1*line,width,width/2-width*0.05,1.6*line))
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shape = subtract(shape,triangle(width/3,-height/3,width,width,width,-height/3))
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glyphs['y'] = shape
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shape = rectangle(0,width,0,height)
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shape = subtract(shape,triangle(0,line,0,height-line,width-1.4*line,height-line))
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shape = subtract(shape,triangle(1.4*line,line,width,height-line,width,line))
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glyphs['Z'] = shape
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w = 2*height/3
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shape = rectangle(0,width,0,w)
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shape = subtract(shape,triangle(0,line,0,w-line,width-1.6*line,w-line))
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shape = subtract(shape,triangle(width,line,1.6*line,line,width,w-line))
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glyphs['z'] = shape
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shape = circle(width/2,width/2,width/2)
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shape = subtract(shape,circle(width/2,width/2,width/2-0.8*line))
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shape = scale_y(shape,0,height/width)
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glyphs['0'] = shape
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shape = rectangle(width/2-line/2,width/2+line/2,0,height)
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w = width/2-line/2
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cutout = circle(0,height,w)
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shape = add(shape,rectangle(0,width/2,height-w-line,height))
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shape = subtract(shape,cutout)
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shape = move(shape,(width/2+line/2)/4,0)
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glyphs['1'] = shape
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shape = circle(width/2,height-width/2,width/2)
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shape = subtract(shape,circle(width/2,height-width/2,width/2-line))
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shape = subtract(shape,rectangle(0,width/2,0,height-width/2))
|
|
shape = add(shape,rectangle(0,width,0,height-width/2))
|
|
shape = subtract(shape,triangle(0,line,0,height-width/2,width-line,height-width/2))
|
|
shape = subtract(shape,triangle(1.5*line,line,width,height-width/2-.5*line,width,line))
|
|
glyphs['2'] = shape
|
|
|
|
shape = circle(width/2,width/2,width/2)
|
|
shape = subtract(shape,circle(width/2,width/2,width/2-line))
|
|
shape = scale_y(shape,0,(height/2+line/2)/width)
|
|
shape = add(shape,move(shape,0,height/2-line/2))
|
|
shape = subtract(shape,rectangle(0,width/2,height/4,3*height/4))
|
|
glyphs['3'] = shape
|
|
|
|
shape = rectangle(width-line,width,0,height)
|
|
shape = add(shape,triangle(0,height/3,width-line,height,width-line,height/3))
|
|
shape = subtract(shape,triangle(width/2*line,height/3+line,width-line,height-1.5*line,width-line,height/3+line))
|
|
glyphs['4'] = shape
|
|
|
|
########
|
|
|
|
shape = circle(width/2,width/2,width/2)
|
|
shape = subtract(shape,circle(width/2,width/2,width/2-line))
|
|
shape = subtract(shape,rectangle(0,width/2,width/2,width))
|
|
shape = add(shape,rectangle(0,width/2,width-line,width))
|
|
shape = add(shape,rectangle(0,line,width-line,height))
|
|
shape = add(shape,rectangle(0,width,height-line,height))
|
|
glyphs['5'] = shape
|
|
|
|
shape = circle(width/2,height-width/2,width/2)
|
|
shape = subtract(shape,circle(width/2,height-width/2,width/2-line))
|
|
shape = subtract(shape,rectangle(0,width,0,height-width/2))
|
|
shape = subtract(shape,triangle(width,height,width,height/2,width/2,height/2))
|
|
shape = add(shape,circle(width/2,width/2,width/2))
|
|
shape = subtract(shape,circle(width/2,width/2,width/2-line))
|
|
shape = add(shape,rectangle(0,line,width/2,height-width/2))
|
|
glyphs['6'] = shape
|
|
|
|
shape = rectangle(0,width,0,height)
|
|
shape = subtract(shape,triangle(0,0,0,height-line,width-line,height-line))
|
|
shape = subtract(shape,triangle(line,0,width,height-line,width,0))
|
|
glyphs['7'] = shape
|
|
|
|
shape = circle(width/2,width/2,width/2)
|
|
shape = subtract(shape,circle(width/2,width/2,width/2-line))
|
|
shape = scale_y(shape,0,(height/2+line/2)/width)
|
|
shape = add(shape,move(shape,0,height/2-line/2))
|
|
glyphs['8'] = shape
|
|
|
|
shape = circle(width/2,width/2,width/2)
|
|
shape = subtract(shape,circle(width/2,width/2,width/2-line))
|
|
shape = subtract(shape,rectangle(0,width,width/2,height))
|
|
shape = subtract(shape,triangle(0,0,0,height/2,width/2,height/2))
|
|
shape = add(shape,circle(width/2,height-width/2,width/2))
|
|
shape = subtract(shape,circle(width/2,height-width/2,width/2-line))
|
|
shape = add(shape,rectangle(width-line,width,width/2,height-width/2))
|
|
glyphs['9'] = shape
|
|
|
|
w = width/2
|
|
shape = circle(w,w,w)
|
|
shape = subtract(shape,circle(w,w,w-line))
|
|
shape = subtract(shape,rectangle(w,width,0,height))
|
|
shape = scale_y(shape,0,height/width)
|
|
shape = move(shape,w/2,0)
|
|
glyphs['('] = shape
|
|
|
|
shape = reflect_x(glyphs['('],width)
|
|
glyphs[')'] = shape
|
|
|
|
glyphs[' '] = '0'
|
|
|
|
shape = rectangle(width/2-width/3,width/2+width/3,height/2-line/2,height/2+line/2)
|
|
shape = add(shape,rectangle(width/2-line/2,width/2+line/2,height/2-width/3,height/2+width/3))
|
|
glyphs['+'] = shape
|
|
|
|
shape = rectangle(width/2-width/3,width/2+width/3,height/2-line/2,height/2+line/2)
|
|
glyphs['-'] = shape
|
|
|
|
shape = circle(width/2,line,3*line/4)
|
|
glyphs['.'] = shape
|
|
|
|
shape = rectangle(0,width,0,height)
|
|
shape = subtract(shape,triangle(4*line/5,0,width,height-4*line/5,width,0))
|
|
shape = subtract(shape,triangle(0,4*line/5,0,height,width-4*line/5,height))
|
|
glyphs['/'] = shape
|
|
|
|
#
|
|
# to be done
|
|
#
|
|
# glyphs['~'] = False
|
|
# glyphs['!'] = False
|
|
# glyphs['@'] = False
|
|
# glyphs['#'] = False
|
|
# glyphs['$'] = False
|
|
# glyphs['%'] = False
|
|
# glyphs['^'] = False
|
|
# glyphs['&'] = False
|
|
# glyphs['&'] = False
|
|
# glyphs['_'] = False
|
|
# glyphs['='] = False
|
|
# glyphs['['] = False
|
|
# glyphs['{'] = False
|
|
# glyphs[']'] = False
|
|
# glyphs['}'] = False
|
|
# glyphs[';'] = False
|
|
# glyphs[':'] = False
|
|
# glyphs["'"] = False
|
|
# glyphs['"'] = False
|
|
# glyphs[','] = False
|
|
# glyphs['<'] = False
|
|
# glyphs['>'] = False
|
|
# glyphs['?'] = False
|
|
|
|
return glyphs, width, height
|
|
|
|
def set_font(height):
|
|
global glyphs, glyph_width, glyph_height
|
|
glyphs, glyph_width, glyph_height = make_glyphs(height)
|
|
|
|
def text(text, x, y, height = None, align = 'CC'):
|
|
dx = 0
|
|
dy = 0
|
|
|
|
text_shape = '0'
|
|
|
|
if height is None:
|
|
height = glyph_height
|
|
|
|
if height == glyph_height:
|
|
width = glyph_width
|
|
glyphs_ = glyphs
|
|
else:
|
|
glyphs_, width, height = make_glyphs(height)
|
|
|
|
|
|
for line in text.split('\n'):
|
|
line_shape = '0'
|
|
for chr in line:
|
|
# Only draw characters that we have glyphs for
|
|
if not chr in glyphs_.keys():
|
|
print "Unknown character:", chr
|
|
continue
|
|
|
|
line_shape = add(line_shape, move(glyphs_[chr], dx, dy))
|
|
|
|
dx += 3*width/2
|
|
|
|
# Horizontally align this line of text
|
|
dx -= 3*width/2
|
|
if (align[0] == 'L'):
|
|
text_shape = add(text_shape, line_shape)
|
|
elif (align[0] == 'C'):
|
|
text_shape = add(text_shape, move(line_shape, -dx / 2, 0))
|
|
elif (align[0] == 'R'):
|
|
text_shape = add(text_shape, move(line_shape, -dx, 0))
|
|
else:
|
|
print "Invalid horizontal alignment character."
|
|
|
|
dx = 0
|
|
dy -= 3*height/2
|
|
|
|
dy += 3*height/2
|
|
|
|
# Vertically align the text
|
|
if (align[1] == 'T'):
|
|
pass
|
|
elif (align[1] == 'C'):
|
|
text_shape = move(text_shape, 0, -dy/2)
|
|
elif (align[1] == 'B'):
|
|
text_shape = move(text_shape, 0, -dy)
|
|
else:
|
|
print "Invalid vertical alignment character."
|
|
|
|
text_shape = move(text_shape, x, y)
|
|
return text_shape
|
|
|
|
set_font(1.0) |