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I'm currently working on an extension based on inkex and Python which exports the coordinates of all selected text objects.
The code works fine, however, I do not manage to obtain the coordinates as they are displayed on the screen. The coordinates I get using .get('x') and .get('y') appear to undergo some coordinate transform (translation) before the objects are drawn at the desired position. Obviously, the code of my extension has to do the same transform to get the right values. How do I achieve that?
I'm sure that the solution already exists, but I did not find anything useful.
My code is also in the attachment.
Thanks in advance
Christoph
Code: Select all
#!/usr/bin/env python
# Exports the texts in the document in format understood by
# LaTeX overpic package.
#
# (c) Christoph Lechner, Dec-5, 2015
# http://www.cl-projects.de/
import inkex
import sys
import simpletransform
class TemplateEffect(inkex.Effect):
def __init__(self):
# Call base class construtor.
inkex.Effect.__init__(self)
def effect(self):
# obtain dimensions of SVG document
svg = self.document.getroot()
page_w = svg.get('width')
page_h = svg.get('height')
#Create the string variable which will hold the formatted data (note that '\n' defines a line break)
outputString = ""
#Iterate through all the selected objects in Inkscape
for id, node in self.selected.iteritems():
outputString += "***id="+id+"\n";
#Check if the node is a text
if node.tag == inkex.addNS('text','svg'):
# collect all texts
# loop over all elements (there should be a tspan)
txt=""
for stuff in node:
txt += stuff.text + " "
#for attr in dir(stuff):
# outputString += "obj.%s = %s\n" % (attr, getattr(stuff, attr))
# write format needed by LaTeX overpic
outputString += "\\put(%s,%s){%s}\n" % (node.get('x'),node.get('y'), txt)
outputString += "width=%s, height=%s\n" % (page_w,page_h)
sys.stderr.write(outputString)
# Create effect instance and apply it.
effect = TemplateEffect()
effect.affect()
- so yours looks better for figures, when the length of the text before may be very different from the length after the tex-ification.