So, it appears that Roberto is loading the features (1.5 million) from postgis, and gets an out of memory (he is working on Ubuntu with 8gb). Supposedly it works with Kosmo. Not sure what one can do here? Anyone an idea?
Stefan > El 29-09-2016, a las 07:49, Roberto Carlos Albani Meolans > <robertoalb...@hotmail.com> escribió: > > Gracias por tu ayuda. > > Tengo 8g de ram > > Estoy trabajando con base de datos postgis y trato de leer desde ahi. > > se entiende?? > > Gracias > > > > Roberto Carlos Albani Meolans > > > > De: jump-pilot-devel-requ...@lists.sourceforge.net > <jump-pilot-devel-requ...@lists.sourceforge.net> > Enviado: jueves, 29 de septiembre de 2016 01:00 a.m. > Para: jump-pilot-devel@lists.sourceforge.net > Asunto: Jump-pilot-devel Digest, Vol 123, Issue 41 > > Send Jump-pilot-devel mailing list submissions to > jump-pilot-devel@lists.sourceforge.net > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > Jump-pilot-devel Info Page - SourceForge > lists.sourceforge.net > Your email address: Your name (optional): You may enter a privacy password > below. This provides only mild security, but should prevent others from > messing with ... > > > or, via email, send a message with subject or body 'help' to > jump-pilot-devel-requ...@lists.sourceforge.net > > You can reach the person managing the list at > jump-pilot-devel-ow...@lists.sourceforge.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Jump-pilot-devel digest..." > > > Today's Topics: > > 1. Re: Jump-pilot-devel Digest, Vol 123, Issue 39 (stefan steiniger) > 2. Re: Add SRID and units to Task (manf...@egger-gis.at) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: 28 Sep 2016 21:56:26 -0300 > From: "stefan steiniger" <sst...@geo.uzh.ch> > Subject: Re: [JPP-Devel] Jump-pilot-devel Digest, Vol 123, Issue 39 > To: "OpenJump develop and use" > <jump-pilot-devel@lists.sourceforge.net> > Message-ID: <fdda8b87-16cb-4ede-b2eb-400600ad5...@geo.uzh.ch> > Content-Type: text/plain; charset=windows-1252 > > Hola Roberto, > > buena saber. Entonces tu cambiaste el archivo oj_linux.sh y reiniciaste > OpenJUMP? (si me quieres mandar el archivo directo, pero bien hasta domingo > estar? de viaje). Cuando ram tiene tu PC? > Pero no tengo claro porque eso funciona con Kosmo pero no funciona con > OpenJUMP. Excepto Kosmo no esta leyendo el archivo completo - o viene de una > base de datos Postgis? > > slds, > stefan > > Si no resulta, QGIS es tal vez la mejor alternativa - tambi?n con respeto a > las funciones de cartograf?a y funciones de procesamiento (hay muchos > ?plugins?). > > > On Sep 28, 2016, at 8:31, Roberto Carlos Albani Meolans > <robertoalb...@hotmail.com> wrote: > > > Hola, y muchas gracias por su atencion. > > El problema de memoria sigue. > > Estamos trabajando en un sistema de catastro (Santa Fe, Argentina), donde > > se utiliza genamap como gis y queremos cambiar a so libre, y nos gusto > > mucho OpenJump. > > Hemos probado con Kosmo y este problema de memoria no lo tiene, levanta el > > 1.500.000 registro de parcela y no tiene problema de memoria. Pero la > > decicion de un gis es OpenJump. > > > > La Pc es ubuntu 12.04 a 32 bit. > > > > Gracias, nuevamente > > Roberto Carlos Albani Meolans > > > > > > > > De: jump-pilot-devel-requ...@lists.sourceforge.net > > <jump-pilot-devel-requ...@lists.sourceforge.net> > > Enviado: martes, 27 de septiembre de 2016 07:37 p.m. > > Para: jump-pilot-devel@lists.sourceforge.net > > Asunto: Jump-pilot-devel Digest, Vol 123, Issue 39 > > > > Send Jump-pilot-devel mailing list submissions to > > jump-pilot-devel@lists.sourceforge.net > > > > To subscribe or unsubscribe via the World Wide Web, visit > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > Jump-pilot-devel Info Page - SourceForge > lists.sourceforge.net > Your email address: Your name (optional): You may enter a privacy password > below. This provides only mild security, but should prevent others from > messing with ... > > > > Jump-pilot-devel Info Page - SourceForge > > lists.sourceforge.net > > Your email address: Your name (optional): You may enter a privacy password > > below. This provides only mild security, but should prevent others from > > messing with ... > > > > > > or, via email, send a message with subject or body 'help' to > > jump-pilot-devel-requ...@lists.sourceforge.net > > > > You can reach the person managing the list at > > jump-pilot-devel-ow...@lists.sourceforge.net > > > > When replying, please edit your Subject line so it is more specific > > than "Re: Contents of Jump-pilot-devel digest..." > > > > > > Today's Topics: > > > > 1. memoria (Roberto Carlos Albani Meolans) > > 2. Re: memoria (edgar.sol...@web.de) > > 3. Re: memoria (stefan steiniger) > > 4. Re: memoria (edgar.sol...@web.de) > > 5. SVN: [5032] > > core/trunk/src/com/vividsolutions/jump/datastore/postgis/ > > PostgisValueConverterFactory.java > > (jump-pilot-...@lists.sourceforge.net) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Mon, 26 Sep 2016 13:52:38 +0000 > > From: Roberto Carlos Albani Meolans <robertoalb...@hotmail.com> > > Subject: [JPP-Devel] memoria > > To: "jump-pilot-devel-requ...@lists.sourceforge.net" > > <jump-pilot-devel-requ...@lists.sourceforge.net>, > > "jump-pilot-devel@lists.sourceforge.net" > > <jump-pilot-devel@lists.sourceforge.net> > > Message-ID: > > > > <by2pr17mb04567c83f7e7d6041d7fe53ab5...@by2pr17mb0456.namprd17.prod.outlook.com> > > > > Content-Type: text/plain; charset="iso-8859-1" > > > > Hola, estoy trabajando con openJump y cuando quiero cargar 1.500.000 > > registro de parcelas tengo problemas de memoria. > > > > > > Exception in thread "AWT-EventQueue-0" Exception in thread "TimerQueue" > > java.lang.OutOfMemoryError: GC overhead limit exceeded > > Exception: java.lang.OutOfMemoryError thrown from the > > UncaughtExceptionHandler in thread "TimerQueue" > > > > at sun.java2d.SunGraphics2D.clone(SunGraphics2D.java:274) > > at sun.java2d.SunGraphics2D.create(SunGraphics2D.java:308) > > at java.awt.Graphics.create(Graphics.java:164) > > at javax.swing.JComponent.paintChildren(JComponent.java:870) > > at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1047) > > at javax.swing.JComponent.paint(JComponent.java:1064) > > at javax.swing.JComponent.paintChildren(JComponent.java:888) > > at javax.swing.JComponent.paint(JComponent.java:1064) > > Exception in thread "AWT-XAWT" Exception in thread "AWT-EventQueue-0" > > java.lang.OutOfMemoryError: GC overhead limit exceeded > > java.lang.OutOfMemoryError: GC overhead limit exceeded > > [INFO] 10:50:02.296 Warning: GC overhead limit exceede > > > > > > que puedo hace?? > > Gracias > > > > > > > > [http://graphics.hotmail.com/emsmilep.gif] Roberto Carlos Albani Meolans > > -------------- next part -------------- > > An HTML attachment was scrubbed... > > > > ------------------------------ > > > > Message: 2 > > Date: Mon, 26 Sep 2016 15:58:08 +0200 > > From: edgar.sol...@web.de > > Subject: Re: [JPP-Devel] memoria > > To: OpenJump develop and use <jump-pilot-devel@lists.sourceforge.net> > > Message-ID: <74277027-8de9-81c6-cc43-0f6f95d70...@web.de> > > Content-Type: text/plain; charset=windows-1252 > > > > On 26.09.2016 15:52, Roberto Carlos Albani Meolans wrote: > > > Hola, estoy trabajando con openJump y cuando quiero cargar 1.500.000 > > > registro de parcelas tengo problemas de memoria. > > > > > > > > > Exception in thread "AWT-EventQueue-0" Exception in thread "TimerQueue" > > > java.lang.OutOfMemoryError: GC overhead limit exceeded > > > Exception: java.lang.OutOfMemoryError thrown from the > > > UncaughtExceptionHandler in thread "TimerQueue" > > > > > > at sun.java2d.SunGraphics2D.clone(SunGraphics2D.java:274) > > > at sun.java2d.SunGraphics2D.create(SunGraphics2D.java:308) > > > at java.awt.Graphics.create(Graphics.java:164) > > > at javax.swing.JComponent.paintChildren(JComponent.java:870) > > > at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1047) > > > at javax.swing.JComponent.paint(JComponent.java:1064) > > > at javax.swing.JComponent.paintChildren(JComponent.java:888) > > > at javax.swing.JComponent.paint(JComponent.java:1064) > > > Exception in thread "AWT-XAWT" Exception in thread "AWT-EventQueue-0" > > > java.lang.OutOfMemoryError: GC overhead limit exceeded > > > java.lang.OutOfMemoryError: GC overhead limit exceeded > > > [INFO] 10:50:02.296 Warning: GC overhead limit exceede > > > > > > > > > que puedo hace?? > > > > hey Roberto, can you write in english by any chance? ..ede > > > > > > > > ------------------------------ > > > > Message: 3 > > Date: 26 Sep 2016 19:23:14 -0300 > > From: "stefan steiniger" <sst...@geo.uzh.ch> > > Subject: Re: [JPP-Devel] memoria > > To: "OpenJump develop and use" > > <jump-pilot-devel@lists.sourceforge.net> > > Message-ID: <3a310f2f-8727-481f-b453-aa63d7a94...@geo.uzh.ch> > > Content-Type: text/plain; charset=windows-1252 > > > > Hola Roberto, > > > > se puede aumentar la memoria en oj_windows.bat o oj_linux.sh en la linea > > #JAVA_MAXMEM=?-Xmx1024M > > hay que borrar el # y en este caso la memoria usado seria 1024MG=1GB cuando > > abres OpenJUMP de nuevo. > > > > slds, > > Stefan > > > > @Edgar, hope its ok when I just respond - although its an english list ;) > > > > On Sep 26, 2016, at 10:58, edgar.sol...@web.de wrote: > > > > > On 26.09.2016 15:52, Roberto Carlos Albani Meolans wrote: > > >> Hola, estoy trabajando con openJump y cuando quiero cargar 1.500.000 > > >> registro de parcelas tengo problemas de memoria. > > >> > > >> > > >> Exception in thread "AWT-EventQueue-0" Exception in thread "TimerQueue" > > >> java.lang.OutOfMemoryError: GC overhead limit exceeded > > >> Exception: java.lang.OutOfMemoryError thrown from the > > >> UncaughtExceptionHandler in thread "TimerQueue" > > >> > > >> at sun.java2d.SunGraphics2D.clone(SunGraphics2D.java:274) > > >> at sun.java2d.SunGraphics2D.create(SunGraphics2D.java:308) > > >> at java.awt.Graphics.create(Graphics.java:164) > > >> at javax.swing.JComponent.paintChildren(JComponent.java:870) > > >> at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1047) > > >> at javax.swing.JComponent.paint(JComponent.java:1064) > > >> at javax.swing.JComponent.paintChildren(JComponent.java:888) > > >> at javax.swing.JComponent.paint(JComponent.java:1064) > > >> Exception in thread "AWT-XAWT" Exception in thread "AWT-EventQueue-0" > > >> java.lang.OutOfMemoryError: GC overhead limit exceeded > > >> java.lang.OutOfMemoryError: GC overhead limit exceeded > > >> [INFO] 10:50:02.296 Warning: GC overhead limit exceede > > >> > > >> > > >> que puedo hace?? > > > > > > hey Roberto, can you write in english by any chance? ..ede > > > > > > ------------------------------------------------------------------------------ > > > _______________________________________________ > > > Jump-pilot-devel mailing list > > > Jump-pilot-devel@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > Jump-pilot-devel Info Page - SourceForge > lists.sourceforge.net > Your email address: Your name (optional): You may enter a privacy password > below. This provides only mild security, but should prevent others from > messing with ... > > > > Jump-pilot-devel Info Page - SourceForge > > lists.sourceforge.net > > Your email address: Your name (optional): You may enter a privacy password > > below. This provides only mild security, but should prevent others from > > messing with ... > > > > > > > > > > > > > > ------------------------------ > > > > Message: 4 > > Date: Tue, 27 Sep 2016 09:48:01 +0200 > > From: edgar.sol...@web.de > > Subject: Re: [JPP-Devel] memoria > > To: jump-pilot-devel@lists.sourceforge.net > > Message-ID: <fcd56a02-815a-91c9-8315-3eb75d16c...@web.de> > > Content-Type: text/plain; charset=windows-1252 > > > > Stefan, > > > > just didn't want to activate an online translator, in case he's english > > capable. afaics you suggest to manually adjust the maxmem setting. i would > > ask him for the OJ version used, as we have a routine that sets maxmem to > > 90% or so of the available memory since a while. > > > > also using more then 1GB requires a java 64bit runtime.. ede > > > > On 27.09.2016 00:23, stefan steiniger wrote: > > > Hola Roberto, > > > > > > se puede aumentar la memoria en oj_windows.bat o oj_linux.sh en la linea > > > #JAVA_MAXMEM=?-Xmx1024M > > > hay que borrar el # y en este caso la memoria usado seria 1024MG=1GB > > > cuando abres OpenJUMP de nuevo. > > > > > > slds, > > > Stefan > > > > > > @Edgar, hope its ok when I just respond - although its an english list ;) > > > > > > On Sep 26, 2016, at 10:58, edgar.sol...@web.de wrote: > > > > > >> On 26.09.2016 15:52, Roberto Carlos Albani Meolans wrote: > > >>> Hola, estoy trabajando con openJump y cuando quiero cargar 1.500.000 > > >>> registro de parcelas tengo problemas de memoria. > > >>> > > >>> > > >>> Exception in thread "AWT-EventQueue-0" Exception in thread "TimerQueue" > > >>> java.lang.OutOfMemoryError: GC overhead limit exceeded > > >>> Exception: java.lang.OutOfMemoryError thrown from the > > >>> UncaughtExceptionHandler in thread "TimerQueue" > > >>> > > >>> at sun.java2d.SunGraphics2D.clone(SunGraphics2D.java:274) > > >>> at sun.java2d.SunGraphics2D.create(SunGraphics2D.java:308) > > >>> at java.awt.Graphics.create(Graphics.java:164) > > >>> at javax.swing.JComponent.paintChildren(JComponent.java:870) > > >>> at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1047) > > >>> at javax.swing.JComponent.paint(JComponent.java:1064) > > >>> at javax.swing.JComponent.paintChildren(JComponent.java:888) > > >>> at javax.swing.JComponent.paint(JComponent.java:1064) > > >>> Exception in thread "AWT-XAWT" Exception in thread "AWT-EventQueue-0" > > >>> java.lang.OutOfMemoryError: GC overhead limit exceeded > > >>> java.lang.OutOfMemoryError: GC overhead limit exceeded > > >>> [INFO] 10:50:02.296 Warning: GC overhead limit exceede > > >>> > > >>> > > >>> que puedo hace?? > > >> > > >> hey Roberto, can you write in english by any chance? ..ede > > >> > > >> ------------------------------------------------------------------------------ > > >> _______________________________________________ > > >> Jump-pilot-devel mailing list > > >> Jump-pilot-devel@lists.sourceforge.net > > >> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > Jump-pilot-devel Info Page - SourceForge > lists.sourceforge.net > Your email address: Your name (optional): You may enter a privacy password > below. This provides only mild security, but should prevent others from > messing with ... > > > > Jump-pilot-devel Info Page - SourceForge > > lists.sourceforge.net > > Your email address: Your name (optional): You may enter a privacy password > > below. This provides only mild security, but should prevent others from > > messing with ... > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > > _______________________________________________ > > > Jump-pilot-devel mailing list > > > Jump-pilot-devel@lists.sourceforge.net > > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > Jump-pilot-devel Info Page - SourceForge > lists.sourceforge.net > Your email address: Your name (optional): You may enter a privacy password > below. 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This provides only mild security, but should prevent others from > > messing with ... > > > > > > > > > > > > > > > ------------------------------ > > > > Message: 5 > > Date: Tue, 27 Sep 2016 22:37:06 +0000 > > From: jump-pilot-...@lists.sourceforge.net > > Subject: [JPP-Devel] SVN: [5032] > > core/trunk/src/com/vividsolutions/jump/datastore/postgis/ > > PostgisValueConverterFactory.java > > To: jump-pilot-devel@lists.sourceforge.net > > Message-ID: > > > > <mailman.37875.1475015828.6153.jump-pilot-de...@lists.sourceforge.net> > > Content-Type: text/plain; charset=UTF-8 > > > > Revision: 5032 > > http://sourceforge.net/p/jump-pilot/code/5032 > > Author: michaudm > > Date: 2016-09-27 22:37:05 +0000 (Tue, 27 Sep 2016) > > Log Message: > > ----------- > > Finally remove bytea->geometry mapping for postgis > > > > Modified Paths: > > -------------- > > > > core/trunk/src/com/vividsolutions/jump/datastore/postgis/PostgisValueConverterFactory.java > > > > Modified: > > core/trunk/src/com/vividsolutions/jump/datastore/postgis/PostgisValueConverterFactory.java > > =================================================================== > > --- > > core/trunk/src/com/vividsolutions/jump/datastore/postgis/PostgisValueConverterFactory.java > > 2016-09-25 22:42:47 UTC (rev 5031) > > +++ > > core/trunk/src/com/vividsolutions/jump/datastore/postgis/PostgisValueConverterFactory.java > > 2016-09-27 22:37:05 UTC (rev 5032) > > @@ -24,7 +24,8 @@ > > > > // manages 2 cases: type retrieved from Database metadata (DataStore > > Panel) > > // and from direct Adhoc query (type of the column resultset). > > - if ("bytea".equalsIgnoreCase(dbTypeName) || > > "geometry".equalsIgnoreCase(dbTypeName)) { > > + // Finally, converting bytea to geometry is a bad idea > > + if (/*"bytea".equalsIgnoreCase(dbTypeName) ||*/ > > "geometry".equalsIgnoreCase(dbTypeName)) { > > return WKB_GEOMETRY_MAPPER; > > } > > > > > > > > > > > > ------------------------------ > > > > ------------------------------------------------------------------------------ > > > > > > ------------------------------ > > > > _______________________________________________ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > Jump-pilot-devel Info Page - SourceForge > lists.sourceforge.net > Your email address: Your name (optional): You may enter a privacy password > below. This provides only mild security, but should prevent others from > messing with ... > > > > Jump-pilot-devel Info Page - SourceForge > > lists.sourceforge.net > > Your email address: Your name (optional): You may enter a privacy password > > below. This provides only mild security, but should prevent others from > > messing with ... > > > > > > > > > > End of Jump-pilot-devel Digest, Vol 123, Issue 39 > > ************************************************* > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > ------------------------------ > > Message: 2 > Date: Thu, 29 Sep 2016 00:00:08 -0400 (EDT) > From: "manf...@egger-gis.at" <manf...@egger-gis.at> > Subject: Re: [JPP-Devel] Add SRID and units to Task > To: "OpenJump develop and use" > <jump-pilot-devel@lists.sourceforge.net> > Cc: jump-pilot-devel@lists.sourceforge.net > Message-ID: <1475121608.017232...@webmail.jimdo.com> > Content-Type: text/plain;charset=UTF-8 > > Good morning! > > I published a first version of my tool including registered EPSG-Codes in > geotools 2.6.0. : > > http://www.egger-gis.at/shapefile-projectionfinder/ > > Before i start to develop a OPEN JUMP PLUGIN i want to ask which databases > OPEN JUMP uses for transformations? > > I the last weeks i saw in your email traffic that you included different > sources of projection definitions (EPSG, ESRI, user defs, ...)? > > And is it possible to make different .prj files? You know ESRI can not read > WKT by OGC... > > Best regards, > > Manfred Egger > > Alois-Schrott-Str. 34 > 6020 Innsbruck > Austria > > Web: http://egger-gis.at > > -----Original Message----- > From: "Micha?l Michaud" <m.michael.mich...@orange.fr> > Sent: Thursday, August 4, 2016 5:32pm > To: jump-pilot-devel@lists.sourceforge.net > Subject: Re: [JPP-Devel] Add SRID and units to Task > > Hi Peppe, > > Your explanation is clear. > > I tend to be on the same opinion as Jukka on this topic because I > generally use OpenJUMP as a toolbox, and I generally know exactly what I > want to do with my data. > > But I admit that to visualize heterogeneous data, OpenJUMP has not much > to offer to the user to solve projection problems, and the beginner can > be bothered by the lack of assistance. > > Here are a few recommandation : > > 1 - Projection issues may be tricky. It is magic as long as the only > need is visualization, but if the user need to reproject his dataset, he > must be aware of the consequences (reversibility, topology > consistency...). Last time I have been screwed by a projection problem > is with FME. I imported shapefiles with a prj in a project using the > "same" projection. It was supposed to be a no-op (doing nothing), except > that FME did a transformation from projection A (defined by prj > parameters) to projection A (defined by internal FME parameters), which > resulted in an invisible switch of a few micrometers difficult to see, > but which broke the consistency with another layer (which did not follow > the same process). Of course this can be avoided in FME, but this is > just an example to illustrate that without a great care, something > supposed to be magic may become dramatic. > > 2 - From my point of view, one of the most difficult problem is to be > able to recognize that two coordinate reference system with different > origins (different registries, different formats, different libraries, > different definitions) represent the same thing (see the above problem > with FME). I think you already worked on that problem. > > 3 - Your mail explains quite clearly what already exists and where you > want to go. I think that to anticipate difficulties, we can suppose that > a SRID is associated to the task and try to define OpenJUMP behaviour in > different situations : > - default behaviour when creating a new task : asking for a srid or not > ? it is a good thing if OJ can infer information from prj files or other > sources, but I don't like having to answer esoteric questions before I > can start working. > - task without srid : does it take the srid of the first layer imported > ? What if layers without srid are already imported ? > - can we change the srid of a task if layers with srid are already > imported ? > - importing a layer with a different srid : 1) the layer is just tagged > (layer srid mismatch task srid), 2) the layer is automatically > reprojected by the renderer ? 3) the user is invited to reproject the > layer ? 4) There are some options to define OpenJUMP behaviour > - how to deal with layers without projection : can we import them in a > task with a srid ? can we edit them ? Do we set the task projection to > the layer projection automatically ? > - if a reprojected layer is not editable, an interesting option would be > to set the task srid to the selected layer srid (-> makes the selected > layer editable, and reproject other layers) > - etc. > > 4- Implementation : no real opinion. Ede's advice will certainly make > the code more flexible, but also a bit more complex. And how to > represent the coordinate system property ? Another difficult question. > We already have SRID represented by an int at the geometry level (JTS) > and a CoordinateSystem at the FeatureSchema level. IMHO, the first is a > bit too lightweight (cannot handle non EPSG crs). The second is too > lightweight if we want to use it to effectively transform coordinates > (cannot handle much transformations) and too heavyweight if we just use > it as a reference to be used by CTS library (or any other). > > > My 3 cents > > Michael > > > > Le 03/08/2016 ? 15:13, Gmail a ?crit : > > LoopThis thread needs a larger explanation. > > I try to simplify it. > > other GIS like Kosmo or GVSig implemented Coordinate system framework > > following these steps: > > a) first step they add a projection object to the task (usually as EPSG or > > ESRI code). In Kosmo user has to set that. QGIS also allows to set Task > > projection loading that from the first loadedf file (with SRID). > > b) QGIS define the Unit of the task from SRID ( ex. 4326>degree, > > 32632>metre) while GvSig And Kosmo require to set it manually. > > c) a projection object is set to each loaded layer. This is done reading > > layer metadata or manually > > d) if the task and the layer projection object are different a > > transformation should be set. Those software use ( for vector) proj4 > > libraries. In this step Qgis and newer gvsig allows on fly reprojection. > > e) this transformation is taken into account only by layer renderes on the > > workbench. Which changes geometry before drawing it. > > This transformation is saved into project file and taken into account > > whenever the project file is loaded. > > f) Note that Kosmo (and probably Gvsig) doesn't allow any spatial operation > > on reprojected layers. The only way to modify them is to save them > > reprojected. > > > > Recently I did few modifications on shape file reading in order to expand > > capability to set layer SRId when reading file. Layer properties plugins > > already have this capability for both raster and vector ( included > > geotif*). Together with database and wfs capability to record layer srid we > > probably get almost point C of my list. > > > > My idea is to work on point A and B, integrating parts if my measure plugin > > in to OJ core in order to have measurements\zoom when task projection is > > geographic or possibility that oj display meter or feet unit on > > measurements \ scale bar. > > The other points can be faced in the future, including in fly reprojection. > > > > My project: > > 1) Oj already as a srid registry embedded that I added when I defined srid > > detection capability from auxiliary files. It is a simple list of > > projection, a series of lines with only srid number and a proj. description > > ( ex <32632>;<WGS 84 UTM zone 32>), build using proj4 registries and excel. > > I could expand each line with unit ( ex <32632>;<WGS 84 UTM zone > > 32>;<metre>) > > 2) expand Task class with srid code and unit. User can define manually . > > 3) modify measure /zoom plugins according units, meter, foot, degree ( in > > this last case I would limit only to wgs84 ) using classes fro my measure > > plugin. > > > > Peppe > > > > > > > > > > > > * > > > > > > > > Inviato con AquaMail per Android > > http://www.aqua-mail.com > > > > > > Il 03 agosto 2016 12:32:48 edgar.sol...@web.de ha scritto: > > > >> hey Peppe, > >> > >> On 03.08.2016 11:11, Giuseppe Aruta wrote: > >>> Hi all, > >>> The title explains what is my idea. In a possible future we can extend OJ > >>> projection capabilities. And the 1st step I would explore is to add SRID > >>> code to a task (to centralize possible transformations) > >> can you elaborate? > >> > >>> and unit of measurements (retriving from SRID, which will affect other > >>> plugins/tools like measure tools, measure area/length, display scales etc, > >>> especially for Geographic coordinate systems). > >> same here. > >> > >>> I gave a look at Task class , should I implement (srid and unit) as > >>> properties into the associate xml file? Does it breaks compatibility? > >> ..ede > >> > >> ------------------------------------------------------------------------------ > >> _______________________________________________ > >> Jump-pilot-devel mailing list > >> Jump-pilot-devel@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > > Jump-pilot-devel mailing list > > Jump-pilot-devel@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > ------------------------------------------------------------------------------ > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > > > > > ------------------------------ > > ------------------------------------------------------------------------------ > > > ------------------------------ > > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel > > > End of Jump-pilot-devel Digest, Vol 123, Issue 41 > ************************************************* > > > ------------------------------------------------------------------------------ > _______________________________________________ > Jump-pilot-devel mailing list > Jump-pilot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/jump-pilot-devel
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