Orthogonal connectors cause crash on load

[Ken Gilmer]

On Ubuntu 10.10, running from terminal produces this error on crash:

kgilmer@t410s:~$ inkscape
inkscape: libavoid/orthogonal.cpp:1747: void Avoid::buildOrthogonalChannelInfo(Avoid::Router*, size_t, Avoid::ShiftSegmentList&): Assertion `displayRoute.at(indexLow)[altDim] < displayRoute.at(indexHigh)[altDim]' failed.

Emergency save activated!
Emergency save completed. Inkscape will close now.
If you can reproduce this crash, please file a bug at www.inkscape.org
with a detailed description of the steps leading to the crash, so we can fix it.

More info:
kgilmer@t410s:~$ uname -a
Linux t410s 2.6.35-25-generic #43-Ubuntu SMP Thu Jan 6 22:25:21 UTC 2011 x86_64 GNU/Linux
kgilmer@t410s:~$ file /usr/bin/inkscape
/usr/bin/inkscape: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, stripped
kgilmer@t410s:~$ inkscape --version
Inkscape 0.48.0 r9654 (Sep 20 2010)

[su_v (suv-lp)]

Reproduced with Inkscape 0.48+devel r10009 on OS X 10.5.8

Console message:

Assertion failed: (displayRoute.at(indexLow)[altDim] < displayRoute.at(indexHigh)[altDim]), function buildOrthogonalChannelInfo, file libavoid/orthogonal.cpp, line 1747.

Same message/backtrace in:
Bug #635469 “[connectors] 'Exchange Position' of objects with orthogonal connectors causes crash”
Bug #700298 “File with connector crashes on load”

[su_v (suv-lp)]

Attached file no longer crashes when opened in Inkscape 0.48.0 and 0.48+devel r10009.

The was manually edited in a plain-text editor to change the type of the two connector lines from "orthogonal" to "polyline" (default). Hopefully this allows you to continue to work on this project without having to completely redraw the document.

[su_v (suv-lp)]

Crash no longer reproduced with patch attached to bug #771738
tested with Inkscape 0.48+devel r10268+patch on Mac OS X 10.5.8 (i386)