Hi all,
I finally tracked the problem down that, as I just found out now, exists
since Sextante 0.3.
I wrote that I am trying to use a Sextante Algorithm within an OpenJUMP
plugin class. Here, somewhere on the way, when the output is to be
created, I got a null pointer for SextanteGUI.getOutputFactory() in the
IDE. However, I did not get this null pointer when I use the same
algorithm/OJ Plugin in OpenJUMP PLUS when Sextante is loaded.
So what happens is that Sextante needs to be initialized using
Sextante.initialze() and SextanteGUI.initialize(), with the latter
containing the information on the OutputFactory. The initialisation for
SextanteGUI fails in the IDE, because during class initialization we find:
public final static ImageIcon SEXTANTE_ICON = new ImageIcon(
SextanteGUI.class.getClassLoader().getResource(
"images/module2.png"));
and this image file is nowhere existing in my IDE (as Eclipse may use
different class loader; which Victor suggested in 2009 [1]).
Hence, not the solution, but the workaround is to load Sextante with
OpenJUMP as jar files (one for Sextante and one for Sextante GUI), since
they contain the said image.
So, my suggestion would be to remove that line or do some try/catch
statement.
On my way to tracking this down, I wrote a OJSextanteApiInitialiser
class that also helps to see if Sextante was already initialised
earlier. I will upload this to OJs SVN repository with the copy of the
bindings. I also made a getter re-addition to the both OpenJUMPXXLayer
classes, since the interface classes lost with the newer Sextante
version the access to the filename/path (which I need to delete
intermediate processing results).
I will do more testing in the next days, so hopefully we have Sextante
1.0 and OJ synchronized soonish. The changes weren't as big as I was
thinking - but maybe I missed things???
cheers,
stefan
[1]
http://www.mail-archive.com/sextante-users@lists.forge.osor.eu/msg00109.html
Am 27.10.12 18:17, schrieb Stefan Steiniger:
> so.. the error for the vector data (postprocess()) and the raster data
> (.create()) are both due to SextanteGUI.getOutputFactory() returning null.
> Now the question is "why?" ...
>
> And even more so, why does it work in my compiled OJ PLUS but not from
> within the IDE...
>
> I guess I will ask the Sextante list directly.
>
> cheers,
> stefan
>
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