Latex formula rendered upside down

[mycae]

Very minor: Formulae get rendered upside down if you open an EPS file, then attempt to render a latex formula. This is easily worked around by just flipping it.

Everything works fine for normal SVG editing however.

[jazzynico (jazzynico)]

Confirmed on Ubuntu 9.10, Inkscape 0.47 and bzr rev. 9388.
The latex formula is rendered upside down if you open the EPS file (with File>Open), but not if you import it (File>Import or drag and drop).

[jazzynico (jazzynico)]

The opened EPS drawing main layer has a transform attribute containing: matrix(1.25,0,0,-1.25,0,990), which invert the y axis. If you remove this attribute (with the XML editor) the formula is rendered as expected, but the EPS file is upside down...

Workarounds (if you don't want to flip your formula): create a new layer above the original one, or import the EPS file in a new SVG file instead of opening it directly.

[jazzynico (jazzynico)]

Related bug (and probably duplicate or very close):
Bug #169126 "Text boxes appear upside-down after PDF import". (Fix released).

Reappearance of an old bug?

[jazzynico (jazzynico)]

Also reproduced after opening a PDF document.
The only difference with Bug #169126 is that normal text (created with the text tool) is not affected.

[su_v (suv-lp)]

Comment #7 in related bug #259329 describes the fix for the text tool as «a hack to set a matrix attribute which "disables" group's matrix by adding reverse matrix» (I haven't figured out the revision that added the 'hack' to the text tool). Can a similar approach be used when inserting the rendering of the LaTeX formula (take into account that PS/PDF and SVG use different coordinate systems, or handle the transformation matrix of the parent group/layer)?

This problem seems to affect other extensions too:
- measure a path in Graph0.eps: the text is inserted upside down
- measure the area of a newly created rectangle: the measurement string is inserted way outside the measured area, upside down as well.

[Beluga (buovjaga)]

EPS refuses to load with

Traceback (most recent call last):
  File "ps2pdf-ext.py", line 25, in <module>
    from run_command import run
  File "/usr/share/inkscape/extensions/run_command.py", line 66
    except Exception, inst:
                    ^
SyntaxError: invalid syntax

Arch Linux 64-bit, KDE Plasma 5
Inkscape 0.92pre1 15054 (GTK3)

[Jonathan Hofinger (jhofinger)]

This issue has been fixed by https://gitlab.com/inkscape/extensions/-/merge_requests/282.

Closed by https://gitlab.com/jhofinger