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Kristen Zygmunt wrote:

According to http://braincore.blogspot.com/2005_11_01_archive.html the trouble is that both X11 and Qt define CursorShape. Since you are not currently using Qt CursorShape, a workaround may be to make sure that qwt_spline.h is #included before any X11-related #includes. This seems a bit hacky and if is indeed the case, it's hard to understand why it isn't seen by more people and why it hasn't been fixed by Qt. Qt and X11 are supposed to be able to work together, so I don't think the problem is due to combining them.

Hi Kris,

Your reply was incredibly useful, thanks. You are right, it's CursorShape that was defined twice, once as a #define symbol (X11), once as an enum (Qt).

The message you refer to offers another fix, that is to #undef CursorShape. Both hacks are ugly, but this one seems easier to deal with.

So adding the following to SplineTool.cc solves that problem

<CODE>
#undef CursorShape
#include <Externals/qwt-5.2/src/qwt_spline.h>
</CODE>

Once this was solved, I run into another problem, because the build system was not linking Qt to the Seg3D binary. Which means that my latest patch was in fact broken.

After banging my head against the wall over the weekend, the solution was pretty easy: One has to do

FIND_PACKAGE(Qt3 REQUIRED)

in the CMakeLists.txt at SCIRun.dev/src/ instead of SCIRun.dev/src/Externals/qwt-5.2/, check that the Qt include files are also installed (this is not checked by FIND_PACKAGE), include them in the right places, and then link.

I made a new patch, and this one compiles and links the binary (at least, it works for me)

http://www.paracommunications.org/wiki/codefiles/22091018-205500-add-external-qwt-library.diff

I haven't done anything with the spline class, other than declare a variable with its type, so I don't know whether this approach will be viable.

I have updated the list of milestones in

http://paracommunications.org/wiki/index.php?title=Adding_a_new_filter_to_Seg3D&action=edit&section=22


Cheers,

Ramon.

--
Ramón Casero Cañas, DPhil

Computational Biology, Computing Laboratory
University of Oxford
Wolfson Building, Parks Rd
Oxford OX1 3QD

tlf     +44 (0) 1865 610807
web     http://web.comlab.ox.ac.uk/people/Ramon.CaseroCanas
photos  http://www.flickr.com/photos/rcasero/

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• [Seg3D] Seg3D incompatible with Qt?, Ramón Casero Cañas, 10/16/2009
  • [Seg3D] Re: Seg3D incompatible with Qt?, Kristen Zygmunt, 10/16/2009
    • [Seg3D] Re: Re: Seg3D incompatible with Qt?, Ramón Casero Cañas, 10/18/2009

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