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index 690b8658f9957492bfe7326d6478e5e4a2b9de56..26b20b3e22a28dd8d3a2cf1152a4befefbd92b91 100644 (file)
#!/usr/bin/env python
'''
+This extension module can measure arbitrary path and object length
+It adds a text to the selected path containing the length in a
+given unit.
+
+Copyright (C) 2006 Georg Wiora
Copyright (C) 2006 Nathan Hurst
Copyright (C) 2005 Aaron Spike, aaron@ekips.org
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
+
+TODO:
+ * should use the standard attributes for text
+ * Implement option to keep text orientation upright
+ 1. Find text direction i.e. path tangent,
+ 2. check direction >90 or <-90 Degrees
+ 3. rotate by 180 degrees around text center
'''
-import inkex, simplestyle, simplepath,sys,cubicsuperpath, bezmisc
+import inkex, simplestyle, simplepath,sys,cubicsuperpath, bezmisc, locale
+# Set current system locale
+locale.setlocale(locale.LC_ALL, '')
def numsegs(csp):
return sum([len(p)-1 for p in csp])
def __init__(self):
inkex.Effect.__init__(self)
self.OptionParser.add_option("-f", "--fontsize",
- action="store", type="string",
- dest="fontsize", default="20",
- help="Size of node label numbers")
+ action="store", type="int",
+ dest="fontsize", default=20,
+ help="Size of length lable text in px")
self.OptionParser.add_option("-o", "--offset",
+ action="store", type="float",
+ dest="offset", default=-6,
+ help="The distance above the curve")
+ self.OptionParser.add_option("-u", "--unit",
+ action="store", type="string",
+ dest="unit", default="mm",
+ help="The unit of the measurement")
+ self.OptionParser.add_option("-p", "--precision",
+ action="store", type="int",
+ dest="precision", default=2,
+ help="Number of significant digits after decimal point")
+ self.OptionParser.add_option("-s", "--scale",
+ action="store", type="float",
+ dest="scale", default=1,
+ help="The distance above the curve")
+ self.OptionParser.add_option("-r", "--orient",
+ action="store", type="inkbool",
+ dest="orient", default=True,
+ help="Keep orientation of text upright")
+ self.OptionParser.add_option("--tab",
action="store", type="string",
- dest="offset", default="-4",
- help="The distance above the curve")
+ dest="tab", default="sampling",
+ help="The selected UI-tab when OK was pressed")
+ self.OptionParser.add_option("--measurehelp",
+ action="store", type="string",
+ dest="measurehelp", default="",
+ help="dummy")
+
def effect(self):
+ # get number of digits
+ prec = int(self.options.precision)
+ # loop over all selected paths
for id, node in self.selected.iteritems():
- if node.tagName == 'path':
- self.group = self.document.createElement('svg:g')
- node.parentNode.appendChild(self.group)
+ if node.tag == inkex.addNS('path','svg'):
+ self.group = inkex.etree.SubElement(node.getparent(),inkex.addNS('text','svg'))
- try:
- t = node.attributes.getNamedItem('transform').value
- self.group.setAttribute('transform', t)
- except AttributeError:
- pass
+ t = node.get('transform')
+ if t:
+ self.group.set('transform', t)
+
a =[]
- p = cubicsuperpath.parsePath(node.attributes.getNamedItem('d').value)
+ p = cubicsuperpath.parsePath(node.get('d'))
num = 1
slengths, stotal = csplength(p)
- self.addTextOnPath(self.group,0, 0,str(stotal), id, self.options.offset)
+ ''' Wio: Umrechnung in unit '''
+ if self.options.unit=="mm":
+ factor=0.2822219 # px->mm
+ elif self.options.unit=="pt":
+ factor=0.80 # px->pt
+ elif self.options.unit=="cm":
+ factor=0.02822219 # px->cm
+ elif self.options.unit=="m":
+ factor=0.0002822219 # px->m
+ elif self.options.unit=="km":
+ factor=0.0000002822219 # px->km
+ elif self.options.unit=="in":
+ factor=0.2822219/25.4 # px->in
+ elif self.options.unit=="ft":
+ factor=0.2822219/(25.4*12) # px->ft
+ elif self.options.unit=="yd":
+ factor=0.2822219/(25.4*36) # px->yd
+ else :
+ ''' Default unit is px'''
+ factor=1
+ self.options.unit="px"
+
+ # Format the length as string
+ lenstr = locale.format("%(len)25."+str(prec)+"f",{'len':round(stotal*factor*self.options.scale,prec)}).strip()
+ self.addTextOnPath(self.group,0, 0,lenstr+' '+self.options.unit, id, self.options.offset)
def addTextOnPath(self,node,x,y,text, id,dy=0):
- new = self.document.createElement('svg:text')
- tp = self.document.createElement('svg:textPath')
- s = {'font-size': self.options.fontsize, 'fill-opacity': '1.0', 'stroke': 'none',
+ new = inkex.etree.SubElement(node,inkex.addNS('textPath','svg'))
+ s = {'text-align': 'center', 'vertical-align': 'bottom',
+ 'text-anchor': 'middle', 'font-size': str(self.options.fontsize),
+ 'fill-opacity': '1.0', 'stroke': 'none',
'font-weight': 'normal', 'font-style': 'normal', 'fill': '#000000'}
- new.setAttribute('style', simplestyle.formatStyle(s))
- new.setAttribute('x', str(x))
- new.setAttribute('y', str(y))
- tp.setAttributeNS('http://www.w3.org/1999/xlink','xlink:href', '#'+id)
- tp.setAttribute('startOffset', "50%")
- #tp.setAttribute('dy', dy) # dubious merit
- new.appendChild(tp)
- tp.appendChild(self.document.createTextNode(str(text)))
- node.appendChild(new)
+ new.set('style', simplestyle.formatStyle(s))
+ new.set(inkex.addNS('href','xlink'), '#'+id)
+ new.set('startOffset', "50%")
+ new.set('dy', str(dy)) # dubious merit
+ #new.append(tp)
+ new.text = str(text)
+ #node.set('transform','rotate(180,'+str(-x)+','+str(-y)+')')
+ node.set('x', str(x))
+ node.set('y', str(y))
+
+if __name__ == '__main__':
+ e = Length()
+ e.affect()
+
-e = Length()
-e.affect()
+# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 encoding=utf-8 textwidth=99