import inkex, simplestyle, math

from StringIO import StringIO

def export_MTEXT():

# mandatory group codes : (1, 10, 20) (text, x, y)

if vals[groups['1']] and vals[groups['10']] and vals[groups['20']]:

x = vals[groups['10']][0]

y = vals[groups['20']][0]

# optional group codes : (40, 50) (text height mm, text angle)

size = 12 # default fontsize in px

if vals[groups['40']]:

size = scale*vals[groups['40']][0]

attribs = {'x': '%f' % x, 'y': '%f' % y, 'style': 'font-size: %dpx; stroke: %s' % (size, color)}

angle = 0 # default angle in degrees

if vals[groups['50']]:

angle = vals[groups['50']][0]

attribs.update({'transform': 'rotate (%f %f %f)' % (-angle, x, y)})

attribs.update({'sodipodi:linespacing': '125%'})

node = inkex.etree.SubElement(doc.getroot(), 'text', attribs)

text = vals[groups['1']][0]

found = text.find('\P') # new line

while found > -1:

tspan = inkex.etree.SubElement(node , 'tspan', {'sodipodi:role': 'line'})

tspan.text = text[:found]

text = text[(found+2):]

found = text.find('\P')

tspan = inkex.etree.SubElement(node , 'tspan', {'sodipodi:role': 'line'})

tspan.text = text

def export_POINT():

# mandatory group codes : (10, 20) (x, y)

if vals[groups['10']] and vals[groups['20']]:

generate_ellipse(vals[groups['10']][0], vals[groups['20']][0], w/2, 0.0, 1.0, 0.0, 0.0)

def export_LINE():

# mandatory group codes : (10, 11, 20, 21) (x1, x2, y1, y2)

if vals[groups['10']] and vals[groups['11']] and vals[groups['20']] and vals[groups['21']]:

path = 'M %f,%f %f,%f' % (vals[groups['10']][0], vals[groups['20']][0], scale*(vals[groups['11']][0] - xmin), - scale*(vals[groups['21']][0] - ymax))

attribs = {'d': path, 'style': style}

inkex.etree.SubElement(doc.getroot(), 'path', attribs)

def export_SPLINE():

# mandatory group codes : (10, 20, 70) (x, y, flags)

if vals[groups['10']] and vals[groups['20']] and vals[groups['70']]:

if vals[groups['70']][0] == 8 and len(vals[groups['10']]) == 4 and len(vals[groups['20']]) == 4:

path = 'M %f,%f C %f,%f %f,%f %f,%f' % (vals[groups['10']][0], vals[groups['20']][0], vals[groups['10']][1], vals[groups['20']][1], vals[groups['10']][2], vals[groups['20']][2], vals[groups['10']][3], vals[groups['20']][3])

attribs = {'d': path, 'style': style}

inkex.etree.SubElement(doc.getroot(), 'path', attribs)

def export_CIRCLE():

# mandatory group codes : (10, 20, 40) (x, y, radius)

if vals[groups['10']] and vals[groups['20']] and vals[groups['40']]:

generate_ellipse(vals[groups['10']][0], vals[groups['20']][0], scale*vals[groups['40']][0], 0.0, 1.0, 0.0, 0.0)

def export_ARC():

# mandatory group codes : (10, 20, 40, 50, 51) (x, y, radius, angle1, angle2)

if vals[groups['10']] and vals[groups['20']] and vals[groups['40']] and vals[groups['50']] and vals[groups['51']]:

generate_ellipse(vals[groups['10']][0], vals[groups['20']][0], scale*vals[groups['40']][0], 0.0, 1.0, vals[groups['50']][0]*math.pi/180.0, vals[groups['51']][0]*math.pi/180.0)

def export_ELLIPSE():

# mandatory group codes : (10, 11, 20, 21, 40, 41, 42) (xc, xm, yc, ym, width ratio, angle1, angle2)

if vals[groups['10']] and vals[groups['11']] and vals[groups['20']] and vals[groups['21']] and vals[groups['40']] and vals[groups['41']] and vals[groups['42']]:

generate_ellipse(vals[groups['10']][0], vals[groups['20']][0], scale*vals[groups['11']][0], scale*vals[groups['21']][0], vals[groups['40']][0], vals[groups['41']][0], vals[groups['42']][0])

def export_LEADER():

# mandatory group codes : (10, 20) (x, y)

if vals[groups['10']] and vals[groups['20']]:

if len(vals[groups['10']]) > 1 and len(vals[groups['20']]) == len(vals[groups['10']]):

path = 'M %f,%f' % (vals[groups['10']][0], vals[groups['20']][0])

for i in range (1, len(vals[groups['10']])):

path += ' %f,%f' % (vals[groups['10']][i], vals[groups['20']][i])

attribs = {'d': path, 'style': style}

inkex.etree.SubElement(doc.getroot(), 'path', attribs)

def export_LWPOLYLINE():

# mandatory group codes : (10, 20, 70) (x, y, flags)

if vals[groups['10']] and vals[groups['20']] and vals[groups['70']]:

if len(vals[groups['10']]) > 1 and len(vals[groups['20']]) == len(vals[groups['10']]):

# optional group codes : (42) (bulge)

iseqs = 0

ibulge = 0

while seqs[iseqs] != '20':

iseqs += 1

path = 'M %f,%f' % (vals[groups['10']][0], vals[groups['20']][0])

xold = vals[groups['10']][0]

yold = vals[groups['20']][0]

for i in range (1, len(vals[groups['10']])):

bulge = 0

iseqs += 1

while seqs[iseqs] != '20':

if seqs[iseqs] == '42':

bulge = vals[groups['42']][ibulge]

ibulge += 1

iseqs += 1

if bulge:

sweep = 0 # sweep CCW

if bulge < 0:

sweep = 1 # sweep CW

bulge = -bulge

large = 0 # large-arc-flag

if bulge > 1:

large = 1

r = math.sqrt((vals[groups['10']][i] - xold)**2 + (vals[groups['20']][i] - yold)**2)

r = 0.25*r*(bulge + 1.0/bulge)

path += ' A %f,%f 0.0 %d %d %f,%f' % (r, r, large, sweep, vals[groups['10']][i], vals[groups['20']][i])

else:

path += ' L %f,%f' % (vals[groups['10']][i], vals[groups['20']][i])

xold = vals[groups['10']][i]

yold = vals[groups['20']][i]

if vals[groups['70']][0] == 1: # closed path

path += ' z'

attribs = {'d': path, 'style': style}

inkex.etree.SubElement(doc.getroot(), 'path', attribs)

def generate_ellipse(xc, yc, xm, ym, w, a1, a2):

rm = math.sqrt(xm*xm + ym*ym)

a = math.atan(ym/xm)

if xm < 0:

a += math.pi

diff = (a2 - a1 + 2*math.pi) % (2*math.pi)

if diff: # open arc

large = 0 # large-arc-flag

if diff > math.pi:

large = 1

xt = rm*math.cos(a1)

yt = w*rm*math.sin(a1)

x1 = xt*math.cos(a) - yt*math.sin(a)

y1 = xt*math.sin(a) + yt*math.cos(a)

xt = rm*math.cos(a2)

yt = w*rm*math.sin(a2)

x2 = xt*math.cos(a) - yt*math.sin(a)

y2 = xt*math.sin(a) + yt*math.cos(a)

path = 'M %f,%f A %f,%f %f %d 0 %f,%f' % (xc+x1, yc-y1, rm, w*rm, -180.0*a/math.pi, large, xc+x2, yc-y2)

else: # closed arc

path = 'M %f,%f A %f,%f %f 1 0 %f,%f %f,%f %f 1 0 %f,%f z' % (xc+xm, yc-ym, rm, w*rm, -180.0*a/math.pi, xc-xm, yc+ym, rm, w*rm, -180.0*a/math.pi, xc+xm, yc-ym)

attribs = {'d': path, 'style': style}

inkex.etree.SubElement(doc.getroot(), 'path', attribs)

def get_line():

return (stream.readline().strip(), stream.readline().strip())

def get_group(group):

line = get_line()

if line[0] == group:

return float(line[1])

else:

return 0.0

entities = {'MTEXT': export_MTEXT, 'TEXT': export_MTEXT, 'POINT': export_POINT, 'LINE': export_LINE, 'SPLINE': export_SPLINE, 'CIRCLE': export_CIRCLE, 'ARC': export_ARC, 'ELLIPSE': export_ELLIPSE, 'LEADER': export_LEADER, 'LWPOLYLINE': export_LWPOLYLINE, 'ENDSEC': ''}

groups = {'1': 0, '10': 1, '11': 2, '20': 3, '21': 4, '40': 5, '41': 6, '42': 7, '50': 8, '51': 9, '62': 10, '70': 11, '370': 12}

colors = {1: '#FF0000', 2: '#FFFF00', 3: '#00FF00', 4: '#00FFFF', 5: '#0000FF', 6: '#FF00FF', 7: '#FFFFFF', 8: '#414141', 9: '#808080'}

doc = inkex.etree.parse(StringIO('<svg xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"></svg>'))

stream = open(inkex.sys.argv[1], 'r')

xmax = xmin = 0.0

ymax = 297.0 # default A4 height in mm

line = get_line()

while line[0] and line[1] != 'ENTITIES':

line = get_line()

if line[1] == '$EXTMIN':

xmin = get_group('10')

if line[1] == '$EXTMAX':

xmax = get_group('10')

ymax = get_group('20')

scale = 90.0/25.4 # default convert from mm to pixels

if xmax > xmin:

scale *= 210.0/(xmax - xmin) # scale to A4 width

entity = ''

while line[0] and line[1] != 'ENDSEC':

line = get_line()

if entity and groups.has_key(line[0]):

seqs.append(line[0]) # list of group codes

if line[0] == '1': # text value

val = line[1].replace('\~', ' ')

elif line[0] == '62' or line[0] == '70': # unscaled integer value

val = int(line[1])

elif line[0] == '10': # scaled float x value

val = scale*(float(line[1]) - xmin)

elif line[0] == '20': # scaled float y value

val = - scale*(float(line[1]) - ymax)

else: # unscaled float value

val = float(line[1])

vals[groups[line[0]]].append(val)

elif entities.has_key(line[1]):

if entities.has_key(entity):

color = '#000000' # default color

if vals[groups['62']]: # Common Color Number

if colors.has_key(vals[groups['62']][0]):

color = colors[vals[groups['62']][0]]

style = simplestyle.formatStyle({'stroke': '%s' % color, 'fill': 'none'})

w = 0.5 # default lineweight for POINT

if vals[groups['370']]: # Common Lineweight

if vals[groups['370']][0] > 0:

w = scale*vals[groups['370']][0]/100.0

style = simplestyle.formatStyle({'stroke': '%s' % color, 'fill': 'none', 'stroke-width': '%.1f' % w})

entities[entity]()

entity = line[1]

vals = [[],[],[],[],[],[],[],[],[],[],[],[],[]]

seqs = []

doc.write(inkex.sys.stdout)