Life after ArcView 3.3 ... GvSIG

image I have finished giving the first module of GvSIG, to an institution that apart from implementing a system for the use of municipalities, also expects to provide training on free GIS. This institution had developed an application on Avenue but thinking about migrating it to ArcGIS 9 has given me the opportunity to show them free alternatives and finally the issue has been well walked. Of 8 students only one of them knew imageArcGIS 9 consistently, which has resulted in easily adapting GvISG and although they are aware that ESRI is a better known technology and a better positioned brand they have also come to the conclusion that they do not have the money to invest in 10 GisDesktop licenses , 2 from ArcEditor, 1 GisServer and three other extensions ... ah! and 36 licenses for customers of their pilot project.

Here I tell you how you were.

The students

8 users ArcView 3.3, although a fairly old technology is quite irrigated by many institutions ... appreciated for its simplicity and the number of technicians who dominate.

A programmer who manages Java quite well and who has already started working on the construction of extensions for GvSIG stands out from all the students although he had worked more on NetBeans And it seems to him half pulled of the hair do with Eclipse. There was also one who knows how to program on Avenue, two other developers more into web design with good MySQL / PHP management. The other technical experts in detripping an apr.

The teams

One of the computers was with Linux Ubuntu, there everything was wonderful.

5 computers had XP, there was no problem

2 computers had Windows Vista, there were several incidents of Java execution errors, precisely because the installation that had been made was of the portable GvSIG version. The best way is to install connected to the web, because the system looks for the Java Runtime Environment version that best adapts to the system. Generally the errors happened when loading a raster or making a query in sql builder.

But in general the performance was quite good although some of the teams were with the system loaded probably to install and uninstall or for little space on the disk. In these the operation of the program was felt a little slow ... among them my laptop that is already asking to renew after being subjected to different simulations of Golgotha.

The disadvantages of GvSIG over ArcView 3x

When doing a comparative review between what you found to be missing ArcView these were your appreciations:

  • In tables, you can not change the order of the columns with a simple drag
  • When importing data from a csv file, it requires that the symbol that separates the lists be a semicolon (;) which implies having to change this regional configuration in Windows so that when exporting in Excel it goes this way ... and if they are already converted the files is a can. To this it was added that Excel 2007 can no longer export to dbf.
  • The styles of lines and dots seem quite limited compared to those that came with ArcView ... I suppose more styles are downloaded from some side of the web but the manual does not bring this indicated.
  • The options for changing the layout of fields in the tables is somewhat limited
  • It was not possible to bring a grid in the maps, such as the grid of geographic coordinates

The advantages

Although this first module was limited to the handling of views, tables and maps, this is what they liked the most:

  • The options to choose colors at the time of the thematic
  • The creation of transparencies
  • The properties of layers to be able to choose minimum and maximum display zoom
  • Clipping the window as a georeferenced image
  • The option to go to specific coordinate
  • The grouping of layers and the tree option with the plus sign (+)
  • The ability to add projection to the view and not just the project
  • The correct interpretation of special characters such as accents and the ñ
  • Import from a csv
  • The choice of language
  • The options for defining where the source data is
  • The ability to develop, knowing virtually any functionality of GvSIG as a component in Java
  • Export to pdf
  • The creation of frames as a marker in the views

In a couple of weeks I have to give the second module, which involves the construction of data, integration of extensions, SEXTANTE and later it would be the third one in which we would touch on the topic of creating OGC services. For as long as they have been migrating their apr to gvp and integrating functionalities that they did not have with ArcView.

11 Replies to "Life after ArcView 3.3 ... GvSIG"

  1. I'm having problems installing the arcview on w view. So I started looking for alternatives, so I stumbled over the GvSIG. It is possible to work with layers of information about rivers, that is, the handling of segments, lengths, intersections with polygons. And if you handle very large information layers such as all the rivers in South America in a detailed way?

    Thanks, Pia

  2. Hello Manel, I will review your suggestion on one of these days

    a greeting

  3. I would like you to do a similar study with the MiraMon software. I have played something and it seems to me a very interesting software in SIG and, above all, remote sensing ... It is not free code like the gvSig but it is worth trying ...

  4. Have you tried the extension of the GvSig called Sextant of the Junta de Extremadura ............ ??

  5. Well, I have left the topic of topology for the next module, which is data construction since being ArcView3x users they are not very clear about its scope. I also know that the topology is still being tested in GvSIG.

    I'll keep track of the distribution lists

  6. The map grid is one of those things that are waiting on the list of 'feature requests' and that sooner than later will be addressed.

    By the way, it is always advisable to publicize the distribution lists of the project, within the gvSIG website (in communication space), as any questions that arise with daily use can be sent to the community.

  7. The 1216 build, in addition to the symbology, already has some functionality of remote sensing and topology, in case you are interested in having a look. And although, as Jorge says, it is a version for testing and should not be used for work, it is always good to let students know (even the last hour of the course), so they have an idea of ​​what is coming.

    We take note of the disadvantages in order to improve gradually.

  8. Thanks for the data, I'm going to download the Build version, then I'll let you know what you've mentioned.

    Regarding the grid in the maps, is there any extension?

  9. Wow G !, Great article.

    Regarding Vista: there are some known bugs about Vista that are resolved. Not long ago Fran Peñarrubia published a portable version of gvSIG that should work on that OS. I guess you used that but as I do not know for sure I'll hit the link:

    Regarding development: that guy will love Eclipse, believe me ... when he tries to mount gvSIG in Netbeans (more than 700.000 lines of code) he tells you.

    Regarding the CSV: surely you know, anyone who works in topography has touched him, but I prefer to export and then with any good text editor such as notepad ++ or gVim becomes a replacement of all life and ready for gvSIG. Anyway, that part of gvSIG is improving it.

    Regarding the symbology: have you tried any of the latest builds? They are development versions (do not use with data without backup, you understand) and bring the new gvSIG symbology. it will like you. Try the 1216.

    Anyway, I hope you can give many more gvSIG courses and tell us your experiences. They are tremendously interesting!

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