Dear Maintainer,

With libmagickcore-6.q16-6-extra installed, "display" (symlinked to
display-im6.q16) renders validated SVG files incorrectly or not at all
(exited with

"display-im6.q16: non-conforming drawing primitive definition `path' @ error/draw.c/DrawImage/4216."

) if inkscape is not installed.  Therefore, since inkscape is so
essential for processing SVG files I suggest that inkscape be promoted from "Suggests:"
to "Recommends:" for libmagickcore-6.q16-6-extra or else the package description should
mention that inkscape is essential to SVG success.

Alan

Hi Alan,

I'm not able to reproduce your problem with the version of imagemagick
currently in unstable. Can you post a SVG file that exhibits the problem?

Thanks!

cheers, josch

This is a really old bug, but I just proved it continues to exist for Debian Stable with
the attached "test.svg" SVG file.

If you use pqiv to view this file, the result is a nice graphics plot
with horizontal text title at the top and graphics elements
underneath.  And similarly with display *if inkscape is installed".
If inkscape is purged, "pqiv test.svg" still works as before,
but "display test.svg" silently displays just the horizontal title
without the graphics elements.

Or in other words, inkscape is essential for viewing this SVG file with
the imagemagick display app.

Do you confirm this same issue for Unstable, and if so shouldn't the
following

irwin@merlin> dpkg --status libmagickcore-6.q16-6-extra |grep -i inkscape
Suggests: inkscape

be changed to

"Recommends: inkscape"?

That small packaging change is all that is required to fix this dependency bug (if your above test
shows this bug continues to persist in Unstable).

Alan

Dear all,

This bug is still present in the current Debian bookworm.

CONTEXT:

Debian/bookworm

$ dpkg -l |grep -E "inkscape|imagemagick"
ii  imagemagick                            8:6.9.11.60+dfsg-1.6+deb12u1           amd64        image manipulation programs -- binaries
ii  imagemagick-6-common                   8:6.9.11.60+dfsg-1.6+deb12u1           all          image manipulation programs -- infrastructure
ii  imagemagick-6.q16                      8:6.9.11.60+dfsg-1.6+deb12u1           amd64        image manipulation programs -- quantum depth Q16

i.e. inkscape is not installed


REPRODUCE:

wget https://upload.wikimedia.org/wikipedia/commons/9/90/World_line2.svg # version of 26 June 2008 20:05
wget https://upload.wikimedia.org/wikipedia/commons/7/74/Ladder_Paradox_Overview.svg # version of 2009-08-24

convert -verbose World_line2.svg -resize 500 W.eps |& tee log.1
convert -verbose Ladder_Paradox_Overview.svg -resize 500 L.eps |& tee log.2

STDOUT+STDERR:

$ cat log.[12]

'inkscape' '/tmp/magick--xCaXnAzMn6TMu2YcffaCk_bNw2IGZBA' --export-filename='/tmp/magick-rhLErifp8wZ4D332LJx_ABM0iHpXANep.png' --export-dpi='96' --export-background='rgb(100%,100%,100%)' --export-background-opacity='0.99999999999900002212' > '/tmp/magick-MWNHBpvNh4Lwt-jVMJZXkgEtANDzORNy' 2>&1
mvg:/tmp/magick-pLnisu3k87MW9GIzRh03yxBbjSvsBZQr=>/tmp/magick-pLnisu3k87MW9GIzRh03yxBbjSvsBZQr MVG 675x600 675x600+0+0 16-bit sRGB 58245B 0.200u 0:00.128
World_line2.svg SVG 675x600 675x600+0+0 16-bit sRGB 58245B 0.000u 0:00.000
World_line2.svg=>W.eps SVG 675x600=>500x444 500x444+0+0 16-bit sRGB 1.292MiB 0.080u 0:00.030
'inkscape' '/tmp/magick-eEqnoa1lh-bR2YQ4wRImT-RpuUqmeu8r' --export-filename='/tmp/magick-xVXVTXaZCe4bk3IUC_lD4zzfn5XCIRVB.png' --export-dpi='96' --export-background='rgb(100%,100%,100%)' --export-background-opacity='0.99999999999900002212' > '/tmp/magick-zvM9MVRkEGWdQArdpXoX7hWFS-3Qn7DO' 2>&1
mvg:/tmp/magick-wUkS3YTrUUaAgYTsUltnJzfghGl8I2Xy=>/tmp/magick-wUkS3YTrUUaAgYTsUltnJzfghGl8I2Xy MVG 278x120 278x120+0+0 16-bit sRGB 5200B 0.150u 0:00.148
Ladder_Paradox_Overview.svg SVG 278x120 278x120+0+0 16-bit sRGB 5200B 0.000u 0:00.000
Ladder_Paradox_Overview.svg=>L.eps SVG 278x120=>500x216 500x216+0+0 16-bit Bilevel Gray 33253B 0.040u 0:00.045

Visual checks: 'gv W.eps' looks OK; 'gv L.eps' looks completely blank

I assume that W.eps was created OK without inkscape because the .svg
file has a section with i:pgf ... !CDATA that presumably contains a PGF
image - https://en.wikipedia.org/wiki/Progressive_Graphics_File

WHAT TO DO:

Weak arguments for and against changing from 'Suggests: inkscape' to 'Recommends: inkscape':

- for - fewer people will have this bug occur and be annoyed at the failure;

- against - inkscape is a medium size package with lots of
dependencies (120 Mb after unpacking for my system, including the
dependencies) and not everyone using imagemagick wants to do svg
conversions.


This does seem like a user feedback problem for upstream. Shouldn't
'convert' be expected to give either a warning or an error to the
user? The fact that it works in one case out of the two in the above
example favours a warning rather than an error.


Cheers
Boud