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svg/: SVG -> Lasic converter - by btr, based on laserprojector code
This commit is contained in:
Petr Baudis
parent
2f6c80e9e3
commit
4a64b1688e
2 changed files with 201 additions and 0 deletions
187
svg/SvgProcessor.py
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187
svg/SvgProcessor.py
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import xml.sax
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import math
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class SVGHandler(xml.sax.handler.ContentHandler):
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def __init__(self, scale):
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xml.sax.handler.ContentHandler.__init__(self)
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# self.LD = LD
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self.scale = scale
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self.speed = 5
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def startElement(self, name, attrs):
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if name == 'path':
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tokens = attrs.get('d').\
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replace('m',' m ').replace('c',' c ').replace('l',' l ').\
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replace('h',' h ').replace('v',' v ').replace('z',' z ').\
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replace('M',' M ').replace('C',' C ').replace('L',' L ').\
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replace('H',' H ').replace('V',' V ').replace('Z',' Z ').\
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replace(' ',' ').strip().split(' ')
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# color = attrs.get('stroke')
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# if color:
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# self.LD.set_color(color)
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i,x,y = 0,0,0
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x0,y0 = x,y
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cmd = None
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while i < len(tokens):
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if tokens[i] == '':
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i += 1
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if tokens[i].lower() in ['m', 'c', 'l', 'h', 'v', 'z']:
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cmd = tokens[i]
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i += 1
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if cmd == 'm':
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delta = tokens[i].split(',')
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x += float(delta[0])*self.scale
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y += float(delta[1])*self.scale
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x0,y0 = x,y
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cmd = 'l'
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elif cmd == 'M':
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delta = tokens[i].split(',')
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x = float(delta[0])*self.scale
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y = float(delta[1])*self.scale
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x0,y0 = x,y
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cmd = 'l'
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elif cmd == 'l':
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delta = tokens[i].split(',')
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nx = x+float(delta[0])*self.scale
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ny = y+float(delta[1])*self.scale
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print "l 0 1"
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print "v", self.speed, math.trunc(x), math.trunc(y), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(nx), math.trunc(ny), "3"
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# self.LD.draw_line(x, y, nx, ny)
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x,y = nx,ny
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elif cmd == 'L':
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delta = tokens[i].split(',')
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nx = float(delta[0])*self.scale
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ny = float(delta[1])*self.scale
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print "l 0 1"
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print "v", self.speed, math.trunc(x), math.trunc(y), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(nx), math.trunc(ny), "3"
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# self.LD.draw_line(x, y, nx, ny)
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x,y = nx,ny
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elif cmd == 'z' or cmd == 'Z':
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i -= 1
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print "l 0 1"
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print "v", self.speed, math.trunc(x), math.trunc(y), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(x0), math.trunc(y0), "3"
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# self.LD.draw_line(x, y, x0, y0)
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x,y = x0,y0
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elif cmd == 'h':
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delta = tokens[i]
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nx = x+float(delta)*self.scale
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# self.LD.draw_line(x, y, nx, y)
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print "l 0 1"
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print "v", self.speed, math.trunc(x), math.trunc(y), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(nx), math.trunc(y), "3"
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x = nx
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elif cmd == 'H':
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delta = tokens[i]
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nx = float(delta)*self.scale
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# self.LD.draw_line(x, y, nx, y)
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print "l 0 1"
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print "v", self.speed, math.trunc(x), math.trunc(y), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(nx), math.trunc(y), "3"
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x = nx
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elif cmd == 'v':
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delta = tokens[i]
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ny = y+float(delta)*self.scale
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# self.LD.draw_line(x, y, x, ny)
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print "l 0 1"
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print "v", self.speed, math.trunc(x), math.trunc(y), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(x), math.trunc(ny), "3"
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y = ny
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elif cmd == 'V':
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delta = tokens[i]
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ny = float(delta)*self.scale
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# self.LD.draw_line(x, y, x, ny)
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print "l 0 1"
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print "v", self.speed, math.trunc(x), math.trunc(y), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(x), math.trunc(ny), "3"
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y = ny
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elif cmd == 'c':
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ctrl1 = tokens[i].split(',')
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ctrl2 = tokens[i+1].split(',')
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delta = tokens[i+2].split(',')
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nx = x + float(delta[0])*self.scale
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ny = y + float(delta[1])*self.scale
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# self.LD.draw_cubic_bezier([[x,y],[x+float(ctrl1[0])*self.scale,y+float(ctrl1[1])*self.scale],[x+float(ctrl2[0])*self.scale,y+float(ctrl2[1])*self.scale],[nx,ny]],8)
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print "fuck"
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x = nx
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y = ny
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i+=2
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elif cmd == 'C':
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ctrl1 = tokens[i].split(',')
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ctrl2 = tokens[i+1].split(',')
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delta = tokens[i+2].split(',')
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nx = float(delta[0])*self.scale
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ny = float(delta[1])*self.scale
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# self.LD.draw_cubic_bezier([[x,y],[float(ctrl1[0])*self.scale,float(ctrl1[1])*self.scale],[float(ctrl2[0])*self.scale,float(ctrl2[1])*self.scale],[nx,ny]],8)
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print "fuck"
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x = nx
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y = ny
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i+=2
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i+=1
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if name == 'ellipse':
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cx = float(attrs.get('cx'))*self.scale
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cy = float(attrs.get('cy'))*self.scale
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rx = float(attrs.get('rx'))*self.scale
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ry = float(attrs.get('ry'))*self.scale
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print "fuck"
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# color = attrs.get('stroke')
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# if color:
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# self.LD.set_color(color)
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# self.LD.draw_ellipse(cx, cy, rx, ry)
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if name == 'rect':
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x = float(attrs.get('x'))*self.scale
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y = float(attrs.get('y'))*self.scale
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w = float(attrs.get('width'))*self.scale
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h = float(attrs.get('height'))*self.scale
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print "fuck"
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# color = attrs.get('stroke')
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# if color:
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# self.LD.set_color(color)
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# self.LD.draw_rect(x, y, w, h)
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if name == 'polyline':
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points = attrs.get('points').split(' ')
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print "fuck"
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# color = attrs.get('stroke')
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# if color:
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# self.LD.set_color(color)
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points = map(lambda a: map(lambda b: float(b)*self.scale, a.split(',') ), filter(lambda a: len(a)>0, points) )
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# self.LD.draw_polyline(points)
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if name == 'line':
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x1 = float(attrs.get('x1'))*self.scale
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y1 = float(attrs.get('y1'))*self.scale
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x2 = float(attrs.get('x2'))*self.scale
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y2 = float(attrs.get('y2'))*self.scale
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# color = attrs.get('stroke')
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# if color:
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# self.LD.set_color(color)
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# self.LD.draw_line(x1,y1,x2,y2)
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print "l 0 1"
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print "v", self.speed, math.trunc(x1), math.trunc(y1), "2"
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print "l 254 1"
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print "v", self.speed, math.trunc(x2), math.trunc(y2), "3"
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class SvgProcessor():
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# def __init__(self):
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# self.LD = LD
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def parseString(self, svg, scale = 1.0):
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xml.sax.parseString(svg,SVGHandler(scale))
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def parseFile(self, svgfile, scale = 1.0):
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xml.sax.parse(svgfile,SVGHandler(scale))
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14
svg/showsvg.py
Executable file
14
svg/showsvg.py
Executable file
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#!/usr/bin/env python
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import sys
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from SvgProcessor import SvgProcessor
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if len(sys.argv) < 2:
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print 'Usage: showsvg filename.svg'
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sys.exit(1)
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sp = SvgProcessor()
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sp.parseFile(sys.argv[1], 1)
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