aM,
I sent 2 emails to you directly last week....did you not get them?
If not, here they are. I'm guessing you may still have multiple
libraries on your system (see last part). Let me know if this doesn't help.
aM,
Hmmm...it works fine here. I'm guessing you still may be linking
to the previous libgerbv library, since I just added the ability to pass
NULL as the transform pointer. You can try make clean, then make
install on the gerbv source...you can also try manually deleting the
library from your /usr/local directory (or wherever you're installing it
to and try compiling the examples again). Worst case, you can just
replace the relevant code in the examples you're interested in to:
gerbv_user_transformation_t identityTransform =
{0,0,1,1,0,FALSE,FALSE,FALSE};
thisTransform = &identityTransform;
/* export the first (and only) image in the project, which will be the
one we just loaded */
gerbv_export_rs274x_file_from_image ("example1-output.gbx",
mainProject->file[0]->image, thisTransform);
Another possible culprit may be multiple libgerbv libraries on your
system. You can find out the library location by using:
ldd /usr/local/bin/gerbv (or wherever the gerbv binary is installed)
If you have also installed gerbv using a package on your system (ubuntu,
fedora, etc), this may be causing multiple libraries to exist. To fix
this, and make the examples use the version you are installing, do this:
2. If you installed gerbv to "/usr/local" (the default), many
distributions don't correctly point pkgconfig to this target.
To fix this, add the following to your ~/.bashrc file:
export
PKG_CONFIG_PATH=/usr/local/lib/pkgconfig/:/usr/lib/pkgconfig/
Hope this helps--
Julian
On 06/22/2010 02:09 AM, a m wrote:
Any idea about the segfaults? They seem to happen in the
gerbv_export_rs274x_file_from_image () call.
thanks
On Fri, Jun 11, 2010 at 6:50 PM, a m <makha...@gmail.com
<mailto:makha...@gmail.com>> wrote:
That was quick. I did a [git pull] to grab the changes, ran
[make], and [make install].
All of the examples now compile for me. However, all of the
previously broken ones (1,2,4,5) now give me segmentation faults.
thanks,
aM
On Fri, Jun 11, 2010 at 4:03 PM, Julian Lamb <thepurl...@gmail.com
<mailto:thepurl...@gmail.com>> wrote:
aM,
Thanks for spotting this problem...I guess I missed
updating the example files when we changed the API
previously. I went ahead and fixed it all in git, so please
update your tree and check out the changes. Basically, pass
NULL in for the transform and the function will just use the
default identity transform. I think I checked all 6 of the
examples and they should work now. Let me know if you find
otherwise, and feel free to ask any questions regarding
libgerbv...we're glad to help!
Cheers--
Julian
On 06/11/2010 02:55 AM, a m wrote:
Julian,
Thanks for the prompt reply. Ive finally installed all the
dependencies and was able to build it from source.
I ran into problems with examples 1, 2, 4, 5. All the same
thing:
example5.c:56: error: too few arguments to function
‘gerbv_export_rs274x_file_from_image’
looks like a transform is missing. Whatś a quick way to get
this working?
Thanks again, it looks like this library will be perfect.
aM
On Tue, Jun 8, 2010 at 5:37 PM, Julian Lamb
<thepurl...@gmail.com <mailto:thepurl...@gmail.com>> wrote:
Hi aM,
It depends on how in-depth you want to go. We have
split out "libgerbv" as a separate library you're welcome
to use in your own applications. If you download the
gerbv source from git (see webpage on how to do this),
look at the /doc/example-code/ directory for a bunch of
examples on making some command line apps using
libgerbv. The rendering code is also accessible with
libgerv, so you can make fully functional GUI apps with
it too.
If you want to just use the regular gerbv program and
add some specialized functions of your own, that would be
another option. Go to /src/interface.c to add any
buttons or menu entries you want to add, and then place
the callbacks for those buttons in the /src/callback.c
file. You can then put whatever code you want in those
callback stubs. There's an example in /doc/example-code
on how to draw rectangles. For zooming to specific
levels, you'll probably just want to look at the
functions in callbacks.c on how to do that.
Hack away!
Julian
On 06/08/2010 01:36 AM, a m wrote:
Hello,
Im wondering how it would be possible for me to zoom in
on a certain region or a drawing that is specified by
typing in (x, y, width, height) parameters. Another use
case would be to draw a box or circle based on the above
parameters.
Where would i start to be able to do something like this?
In general, how scriptable is gerbv? how can i start
hacking?
thanks,
aM
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