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Spatial Data Infrastructures for Guatemala

Guatemala ides The Prototype of Spatial Data Infrastructure for Guatemala, which is being prepared by the Secretary General of Planning and Programming of the SEGEPLAN Presidency, is interesting. 

We had seen in the presentation video of Moisés Poyatos and Walter Girón Of SITIMI in the 4th. gvSIG conferences; At the end of the presentation they mentioned that IDEs were a hot topic in Guatemala but to date they had not shown anything publicly. Now they have done it through the gvSIG mailing list and I think it is worth recognizing that it is a great job that is just beginning, although Jean-Roch Lebeau had told me a little about it.

Well, SEGEPLAN pretends within the environment of the new Law of Territorial Ordering To promote the development of Spatial Data Infrastructures in Guatemala, interesting that they are seriously considering Free Software. This Prototype Uses:

  • Postgre (Geographic Module POSTGIS)
  • gvSIG for the generation of spatial services scripts
  • Apache for Web server
  • Mapserver as a Maps server
  • Mapbender as a thin client.
  • And the GEONETWORK Metadata Module Publication is in process.

This is extremely valuable and a good reference for the Central American region where other apps have Short, not only because of what the investment in proprietary software implies, but also because of the taste for OGC standards. To see how the system works:

Enter in the system

He has not yet been baptized with a name that gives him a corporate identity, we assume he will be part of Sinit; because the prototype level is the link address that you now have, http://ide.segeplan.gob.gt/ , There is entered the user and password "ide" and thus has a display of graphical information.

Guatemala ides

Download layers

Here, among the data served, you can choose relief, high-resolution orthophotos and departments. Once the layer is chosen, the available layers can be chosen and below are some tabs for legends, print and search.

Guatemala ides

In the upper icons there are basic functionalities of approach and deployment but there are also other very interesting as the loading of layers wms:Guatemala ides

In the order would be these:

Deployment:

  • Getting closer
  • Walk away
  • Travel
  • Window Zoom
  • Center
  • Displacement
  • Refresh
  • Previous zoom
  • Next zoom

Information:

  • Data search
  • Show coordinates
  • Measure distance

Access wms:

  • Add wms from filtered list **
  • Add wms
  • Adjust wms. **
  • Show info about wms

For now, those marked with an asterisk have a programming error since they refer to a localhost and not to a web server. It also lacks some refinement in the character encoding that does not allow the letter ñ to be seen well in "add".

Others:

  • Help
  • Save file as web map context
  • Upload web map file context
  • Close
  • Manually Modify Deployment Size

Connect from Google Earth

The system provides the opportunity to connect to data either wfs or wms; So that any program that supports standard OGC services could stick to it (GvSIG, ArcGIS, AutoDesk Civil 3D, Bentley Map, manifold CHALK, CadCorpEtc.).

Let's see how, for example, systems such as Google Earth can be pasted into the system:

Guatemala ides

We are going to “add, image overlay”, then we choose the “update” tab and there we choose the “wms parameters” option. We then add a url:

http://www.segeplan.gob.gt/2.0/index.php?option=com_wrapper&view=wrapper&Itemid=260;
REQUEST = GetMap & SERVICE = WMS & LAYERS = Municipalities,
Departments_850, Portfolio_Areas.shp, Water bodies, Headers
Departamentales_800, Rios_200, Roads, Routes
Asfaltadas_850 & STYLES = ,,,,,,, & SRS = EPSG: 42500 & BBOX = 420673.5340388007,
1610754.0839506174,466326.4659611993,1642245.9160493826 & WIDTH =
893 & HEIGHT = 616 & FORMAT = image / png & BGCOLOR = 0xffffff & TRANSPARENT =
TRUE & EXCEPTIONS = application / vnd.ogc.se_inimage

This can be obtained from the different addresses in the mapbender metadata layer, (from the orange button). There are more urls of the other layers available there.

Once deployed that the system allows to choose which layers we want to see and the order

Guatemala ides

And ready:

Guatemala ides

Additionally, I recommend you take a look because there is much more to show in this project.

Golgi Alvarez

Writer, researcher, specialist in Land Management Models. He has participated in the conceptualization and implementation of models such as: National Property Administration System SINAP in Honduras, Management Model of Joint Municipalities in Honduras, Integrated Cadastre-Registry Management Model in Nicaragua, Territory Administration System SAT in Colombia . Editor of the Geofumadas knowledge blog since 2007 and creator of the AulaGEO Academy that includes more than 100 courses on GIS - CAD - BIM - Digital Twins topics.

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7 Comments

  1. What we did to reduce the load of 30 seg to 9 sec approx was to make overview to different scales and not to serve mosaics as we were doing now serve individual orts always with processes of Tilingatte
    +1

  2. Since the beginning of the IDF in Guatemala by the secretariat of planning and programming of the presidency have made several changes, now there is a section of services of maps or WMS, videos of how to connect to these services, and a completely renewed presentation The new IDE has information from various institutions such as MAGA, IGN, INE, etc. All this in http://ide.segeplan.gob.gt

  3. I've been testing it, and it seems to be much faster to display images.

    There are still some inconsistencies in the code table with accents

  4. Best regards

    What we did to reduce the load of 30 seg to 9 sec approx was to make overview to different scales and not serve mosaics as we were doing now serve individual orts always with Tiling processes
    atte

    Walter Giron

  5. Yes, I suppose Tilecache is an output, you should also consult other solutions always in Metacarta as Open Layers.

  6. Very good job and very well your quick test.
    Today I thought of tilecache to speed up orthophotos. (Demo tilecache)
    Does it work only for geoserver or could it be implemented in mapserver?
    In the IDE of Argentina use Landsat and also delay the download.
    Greetings to you

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