[Inkscape-devel] Re: Inkscape for dinosaur track research, questions

2 Nov 2019

      Thought it looked familiar. I'm Simarilius in that thread, I supplied the
dodgy original version that Neon22 improved.
I'm happy for the code to be published, I based it off a blog post from a
now dead blog (wayback link is here:
http://web.archive.org/web/20141216062123/http://jumpnslide.tumblr.com/post/...)
I have an email from that blog author Jean Moreno confirming he was happy
for the code to be modified/ released under GPL which I can forward to you
if you wish.
Neon22 that modified it doesn't appear to have been active on the forum
since 2013, but appears to have been active on Github and Inkscape.org
recently. I've just tried emailing them via the openscad forum, will let
you know if they reply.
Cheers
John
On Sat, Nov 2, 2019 at 12:52 PM Jens Lallensack jens.lallensack@gmail.com
wrote:
...
Hi John,
thanks!
This is the forum post with the improved version of the script:
http://www.inkscapeforum.com/viewtopic.php?t=8826#p32088
And here is the original version (same forum topic):
http://www.inkscapeforum.com/viewtopic.php?t=8826#p31912
Best wishes,
Jens
Am 02/11/2019 um 13:29 schrieb John Cliff:
...
Whats the correct link for the forum post? you seem to have linked the
paper twice.
Cheers
John
On Fri, Nov 1, 2019 at 2:38 PM Jens Lallensack
<jens.lallensack@gmail.com mailto:jens.lallensack@gmail.com> wrote:
Dear all,

I am palaeontologist at the University of Bonn, Germany, focusing on
fossil dinosaur footprints and trackways. I regularly use Inkscape

for
...
my research (for measuring, data extration, and drawing of

interpretive
...
outlines), and have cited this software in several of my papers.

I am currently working on a methodological paper on how to analyze
fossil footprints based on 3D models. The approach I will present in
this paper includes Inkscape as an important component. The idea is

to
...
import raster images into Inkscape (different graphical 2D
representations of the 3D model), align them into an image stack, and
draw interpretive outlines on a separate layer. I use the Bezier

curves
...
tool to collect a number of landmark coordinates from the separate
footprints, which I then export to automatically calculate a large
number of measurements for statistical analysis. The paper is to be
published in a peer-revied journal (currently, I have the Journal of
Palaeontological Techniques in mind,
https://www.jpaleontologicaltechniques.org/).

I already used this method in a recent paper
(https://www.tandfonline.com/doi/abs/10.1080/02724634.2018.1512501)

to
...
rapidly collect measurements of a larger number of trackways. The
aim of
the new methodological paper is to improve this method and to make it
available to our comunity of footprint researchers. However, there

are
...
two open issues/questions regarding Inkscape. I was wondering if you
could give me some advice here.

Export of path node coordinates is, unfortunately, currently possible
only via a plugin, which adds an additional hitch (but I understand
that
research is not the focus of Inkscape). Such a plugin was posted on

the
...
Inkscape Forum in 2011, with improvements added by different members
(https://www.tandfonline.com/doi/abs/10.1080/02724634.2018.1512501).

I
...
simplified the code so that it returns node coordinates only (and not
those of the handles), see code below.

Now to my questions:

1) I need to cite the modified coord export script in my paper, and
make
sure that it stays available. I assume that code published in the

forum
...
is not automatically released under a free licence, and that I cannot
simply distribute the script together with the paper. A possibility
might be to post the modified script to the forum and provide the

link
...
in the paper. This is only an option if the link remains available
for a
longer time (I cannot modify the paper once published). What would be
the optimal way?

2) The coordinates given by the script need to be mirrored and
translated to match the coordinates displayed within Inkscape

itself. I
...
would need to improve the script so that this is done automatically.
I'm
not into python scripting, but would try to figure this out. Any
help/hints with this would be much appreciated.

Thank you very much in advance.

Kind regards,
Jens Lallensack

----- xyexport.py -------

#!/usr/bin/env python

import inkex
import sys
import simpletransform
import cubicsuperpath

class TemplateEffect(inkex.Effect):
      def __init__(self):
          inkex.Effect.__init__(self)
      def effect(self):
          for node in self.selected.iteritems():
              output_all = output_nodes = ""
              for id, node in self.selected.iteritems():
                  if node.tag == inkex.addNS('path','svg'):
                      output_all += ""
                      output_nodes += ""
                      simpletransform.fuseTransform(node)
                      d = node.get('d')
                      p = cubicsuperpath.parsePath(d)
                      for subpath in p:
                          for csp in subpath:
                              output_nodes += str(csp[1][0]) + "\t" +
str(csp[1][1]) + "\n"
              sys.stderr.write(output_nodes)
effect = TemplateEffect()
effect.affect()
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