Hello,
I have problem with Inkscape coordinate system.
I use inkscape as a UI desinger. I want export each group as a single svg and...I do it by python parser and inkscape commandline renderer.
But I have problem with coordinates of each object.
For example,
I have in inkscape group which is complete window deeper in group we have other group for example X (close) button, which construct by path, rectangle and ellipse

And parsers create tree of folders depend on <g></g>
When parser "see" <g></g> then create folder named <id of group> and go deeper until it encounters at <g root_img="true"></g> then all between <g....></g> treats as separate svg and call Inkscape commandline to render it, and save as <id of group>.png.

After all process I have.


I want now cooridnates.txt which have inside, for instance:

close_btn 1250, 10
title_bar 0, 0
product_belt1.png 150, 150
etc..

But how get absolute coordinates of each group ?

Someone have any idea ?


EDIT. It is possible to make plug-in which add additional arguments[x=150, y=120] to all groups in xml?

It would help if you show us the svg

is your python script "svg aware" or is it just a text(=xml) parser ?

Javascript in modern browser should be able to give you the coordinates using methods as such as getBoundingClientRect.
Maybe there's the same for python ?
If not then you'd have to store (and parse) the coordinates of parent (and parent of ...) and to add them by yourself.
Or run a javascript to extract theme and "merge the resul"

Maybe it would make sense to create / adapt an extension for this?
The extension helper files simplepath and simpletransform (computeBBox) probably already do what you need here. And they are python, too

v1nce,
it just text-xml parser,

In Attachment I add svg which I use.
When I get this svg to my parser in return I got,


And now I need

window_bg 0,0
title_bar_bg 0, 1034.39
maximize_btn 1842.76, 1044.18
minimize_btn 1802.76, 1044.18
close_btn 1882.76, 1044.18
title_txt 24.68, 1043,55

as is in inkscape

Moini,

I want add inkscape coordinates of all group to XML svg <g></g> as attribute automaticly (example result <g id="title_bar_bg" x=0 y=1034.39>..content..</g>)
Where I find helper script doing similar operation which may me help

You can find all extensions, including the helper files, in your extensions directory (in Inkscape, find it via: Shift+Ctrl+P (to open Preferences dialog), then look at System -> Inkscape extensions).
I can't help with how to use them (might be you need to use transformation matrices), as I've only started learning about this for my own, very humble extension.

How to execute simplepath.py in inkscape ?

Look at the other extensions, how they do it.
For more textbook-like info about how to write extensions, see here:
https://inkscape.org/en/develop/extensions/ and be sure to follow the links to the Wiki, too.