Hi
sorry if I resume the topic.
I would like to have also the opinion of Alberto, Ede, Jukka, Stefan and
possible other members about it.
- Add OpenKLEM plugin into OpenJUMP PLUS distribution (no depency required)
-
Thanks again
Peppe
2018-08-25 9:35 GMT+02:00 Giuseppe Aruta <giuseppe.ar...@gmail.com>:
> Hi Michael
> thanks for the answer
> Yes. I your right. I was wrong to make a comparision. Indeed my idea was
> to only to demostrate that OpenKLEM can be
> a good integration of Sextante.
>
> Sextante still is a valid set of tools for raster analysis. The problems
> are only to some tools which are bugged
> (strangely only with OpenJUMP, neither Kosmo nor GvSIG - the same Sextante
> version)
>
> Regarding OpenKLEM tools,.
> A good 50% are generic raster tools that should be used together/before
> any analysis (raster calculator, vector to raster, hystogram, etc)
> We have them in Sextante but, as I wrote, some of them in Sextante are
> buggy and some in OpenKLEM are more evident and easy to use
>
> Regarding raster capability.
> Both OpenKLEM and Sextante rely on RasterImageLayer and use the same
> corresponding low level jars.
> The difference comes from the wrappers of the raster data to a grid model
> and the algorithms for analysis:
> Sextante uses wrappers and algorithms located into the distribution
> (sextante.jar
> and sextante-algorithms.jar) (*)
> OpenKLEM has its own raster wrappers and algorithms (**)
>
> Best regards
>
>
>
> (*) Stefan did a good job to port Sextante raster wrapper structure in OJ
> (OpenJUMPSextanteRasterLayer).
> It should be refine in some point.
> For Instance an year ago some users observed a shift of the point
> coordinates of the profile tool integrated into OJ base (which was using
> OpenJUMPSextanteRasterLayer ). The plugin had to be rewritten in order to
> use RasterImageLayer class
> (**) OpenKLEM wrappers/algorithms development traces back from the
> experience of raster tools in AdbToolbox, a project derived from OpenJUMP,
> which is still sponsorized by the Italian m inistry of the environment
> http://www.pcn.minambiente.it/mattm/adb-toolbox/ (in Italian)
>
> 2018-08-24 23:36 GMT+02:00 Michaël Michaud <m.michael.mich...@orange.fr>:
>
>> Hi Peppe,
>>
>> It is very promising. OpenKLEM seems a good extension for OpenJUMP.
>>
>> Also it is nice that you could reduce dependencies. I think that a
>> separate extension could be OK as it offers quite specialized methods
>> (compared to my usage), but as we do not have an easy plugin mechanism to
>> add extensions through the GUI, I'm fine if you include it in the PLUS
>> distro.
>>
>> Not sure I understand correctly the comparison with Sextante : do you
>> suggest to replace Sextante ? Or is it just to demonstrate that OpenKLEM
>> adds new useful capabilities compared to Sextant.
>>
>> I'm a bit lost when it comes to raster capabilities. Does OpenKLEM relies
>> on the same low-level libraries as Sextante (jai ? common-imaging ? imageio
>> ?), does it rely on the same raster driver as Sextante (RasterImageLayer ?)
>> or does it has its own ?
>>
>> Thanks,
>>
>> Michaël
>>
>>
>>
>> Le 24/08/2018 à 18:40, Giuseppe Aruta a écrit :
>>
>> Hi Jumpers
>> OpenKLEM is a set of tools for basic raster and hydrological analysis
>> http://ojwiki.soldin.de/index.php?title=Plugins_for_OpenJUMP
>> #Raster_Analysis.
>>
>> One of our member, Alberto De Luca, has been involved on OpenKLEM
>> development. The software is used by Prof. Roberto Rossi in his course Gis
>> Applications in Hydrogeology (University of Padua -
>> https://didattica.unipd.it/off/2017/LM/AV/AG0062/000ZZ/AG01122459/N0).
>>
>> In the last 2 months, in agreement with Alberto and Roberto, I reworked
>> OpenKLEM source code to reduce the depencies of OpenKLEM to external
>> libraries (mostly OpenDocumet ones). And to make a copy of working OpenKLEM
>> smaller in size and connected only to OpenJUMP plus libraries.
>>
>> This reduced OpenKLEM setup from 8 files(2 core files + 6 OpenDocuments
>> onse)-7 Mb to 2 core files-1 Mb.
>>
>> My proposal in this mail is to integrate OpenKLEM to OpenJUMP PLUS.
>>
>> These are the advantages and integration with OpenJUMP. And a comparison
>> Sextante:
>>
>> 1) Raster instrumentation enrichment
>> the hydrographic analysis tools in OpenKLEM increases the offer of
>> Sextante's raster instrumentation
>>
>> 2) Basic raster tools:
>> Sextante has a more extensive set of basic raster instrumentation. But
>> some of these have unresolved bugs (due to scarce users). Such as the
>> "Sextante> Basic Hydrological Analysis> Sink Fill" tool. The equivalent
>> OpenKLEM tools seem to work properly.
>>
>> 3) Availability of the source code.
>> OpenKLEM: The raster wrappers used in OpenKLEM are integrated into one of
>> the two installation files. The source code is available for any changes
>> / inspections.
>> Sextante: The source code of the wrapper and gui of Sextante
>> (sextante.jar and sextante-gui.jar) integrated in OpenJUMP (ver 1, I
>> believe) is not available (unless Stefan still saves a copy). GvSigCE
>> has a recent version (2014) of Sextante still subject to developmen untill
>> 2017t. I tried to recompile t it for OJ and found more dependencies to
>> GvGIG libraries. I suspect that by now the two Sextante (OJ and GvSIGCE
>> are fork)
>>
>> 4) Users
>> Sextante. Apart from me I do not know other users who regularly use
>> Sextante
>> OpenKLEM. It is used in an annual university course in Padua
>>
>>
>> Documentation: There are some papers and thesys about the usage of
>> Kinematik Local Excess Model (KLEM, the hydrographic model used by
>> OpenKLEM). In Italian.
>> I can resume the basics and try to make a brief documentation about the
>> tools, in English.
>>
>> Source code. I can integrate OpenKLEM source code into OpenJUMP repository
>>
>> Copyright: GNU General Public License. Alberto, you can correct me ;)
>>
>> In this folder you can find OpenKLEM, its source code and the instruction
>> to setup:
>> https://sourceforge.net/projects/opensit/files/Openjump/OpenKLEM/
>>
>> I hope I have been brief and exhaustive. Waiting for your opinions
>>
>> Best regards
>>
>> Peppe
>>
>>
>>
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