dots.py revision ab7cfa2aa956a47c52fddd5f89235114ed958ce4
#!/usr/bin/env python
'''
Copyright (C) 2005 Aaron Spike, aaron@ekips.org
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
'''
import inkex, simplestyle, simplepath, math
class Dots(inkex.Effect):
def __init__(self):
inkex.Effect.__init__(self)
self.OptionParser.add_option("--tab",
action="store", type="string",
dest="tab")
self.OptionParser.add_option("-d", "--dotsize",
action="store", type="string",
dest="dotsize", default="10px",
help="Size of the dots placed at path nodes")
self.OptionParser.add_option("-f", "--fontsize",
action="store", type="string",
dest="fontsize", default="20",
help="Size of node label numbers")
self.OptionParser.add_option("-s", "--start",
action="store", type="int",
dest="start", default="1",
help="First number in the sequence, assigned to the first node")
self.OptionParser.add_option("-t", "--step",
action="store", type="int",
dest="step", default="1",
help="Numbering step between two nodes")
def separateLastAndFirst(self, p):
# Separate the last and first dot if they are togheter
lastDot = -1
if p[lastDot][1] == []: lastDot = -2
if round(p[lastDot][1][-2]) == round(p[0][1][-2]) and \
round(p[lastDot][1][-1]) == round(p[0][1][-1]):
x1 = p[lastDot][1][-2]
y1 = p[lastDot][1][-1]
x2 = p[lastDot-1][1][-2]
y2 = p[lastDot-1][1][-1]
dx = abs( max(x1,x2) - min(x1,x2) )
dy = abs( max(y1,y2) - min(y1,y2) )
dist = math.sqrt( dx**2 + dy**2 )
x = dx/dist
y = dy/dist
if x1 > x2: x *= -1
if y1 > y2: y *= -1
p[lastDot][1][-2] += x * inkex.unittouu(self.options.dotsize)
p[lastDot][1][-1] += y * inkex.unittouu(self.options.dotsize)
def effect(self):
for id, node in self.selected.iteritems():
if node.tag == inkex.addNS('path','svg'):
self.group = inkex.etree.SubElement( node.getparent(), inkex.addNS('g','svg') )
self.dotGroup = inkex.etree.SubElement( self.group, inkex.addNS('g','svg') )
self.numGroup = inkex.etree.SubElement( self.group, inkex.addNS('g','svg') )
try:
t = node.get('transform')
self.group.set('transform', t)
except:
pass
style = simplestyle.formatStyle({ 'stroke': 'none', 'fill': '#000' })
a = []
p = simplepath.parsePath(node.get('d'))
self.separateLastAndFirst(p)
num = self.options.start
for cmd,params in p:
if cmd != 'Z' and cmd != 'z':
dot_att = {
'style': style,
'r': str( inkex.unittouu(self.options.dotsize) / 2 ),
'cx': str( params[-2] ),
'cy': str( params[-1] )
}
inkex.etree.SubElement(
self.dotGroup,
inkex.addNS('circle','svg'),
dot_att )
self.addText(
self.numGroup,
params[-2] + ( inkex.unittouu(self.options.dotsize) / 2 ),
params[-1] - ( inkex.unittouu(self.options.dotsize) / 2 ),
num )
num += self.options.step
node.getparent().remove( node )
def addText(self,node,x,y,text):
new = inkex.etree.SubElement(node,inkex.addNS('text','svg'))
s = {'font-size': self.options.fontsize, 'fill-opacity': '1.0', 'stroke': 'none',
'font-weight': 'normal', 'font-style': 'normal', 'fill': '#999'}
new.set('style', simplestyle.formatStyle(s))
new.set('x', str(x))
new.set('y', str(y))
new.text = str(text)
if __name__ == '__main__':
e = Dots()
e.affect()
# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 encoding=utf-8 textwidth=99