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 ArcGIS 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.
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.
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
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.