GeoAgro GIS FAQs

From Wikiagro.com
Revision as of 17:43, 7 August 2014 by Mt (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search


How do I copy a structure to a different PC?

If you want to copy a new or modified structure from your current PC to another, you have two alternatives:

  1. Creating a new project backup (.GIS file) which can be restored in the other PC.
  2. Creating a layer backup (.LAY file) which can also be restored in the other PC

What are structure files?

Structure files are files which hold the GeoAgro GIS structure data. Using these files, you may transport and share structures between different GeoAgro GIS installations, and with several users.

Some tools in GeoAgro GIS may require the availability of a particular structure. If such structure were modified or deleted, those tools won't work properly, but you can restore them using a structure file. You may check the GeoAgro GIS structure file in this link

Structure files are recognized by the .str extension in their filename.

Can you distinguish one, two or more items using symbology?

Yes. This would apply, for instance, if you wanted to mark zones based on their productivity, whether it's "HIGH", "MEDIUM" or "LOW" and differentiate them based on this criteria.

Bear in mind that:

  1. If none of the available attributes are useful for the classification you want to apply, you need to add attributes appropiate for the intended criteria. For instance, you may enter specific values in the AUX columns available in the structure, or edit the structure if needed.
  2. Define your symbology based on those attributes. Having done this, every time you enter a value associated with your symbology in that particular attribute, it will be automatically displayed according to the chosen symbology.

Which image formats does GeoAgro GIS support?

When trying to import satellite imagery (or any type), please take into account what image formats are supported in GeoAgro GIS.

The following table shows the image formats supported by GeoAgro GIS, and whether they need to have an additional world file. A world file is a text file that contains specially formatted coordinate information about where the image is in relation to the surface of the earth. 


Image format Supported by GeoAgro GIS World File needed World File format
PNG YES YES PGW
TIF YES YES TFW
SID YES YES SDW
ECW YES NO
JP2 YES NO
BIL YES YES BLW
JPG, JPEG YES YES JGW


Note Note: Please keep in mind that the formats that work best in GAGIS are ECW and TIF (with no compression), this means that the system will be more responsive with this type of images

Warning Warning: The images should not be projected, that is, in Geographic Coordinate System - Datum WGS84.

Why can't I connect my Garmin Nuvi or my gps-enabled mobile phone to GeoAgro GIS?

GeoAgro GIS works with GPS devices which support the NMEA standard, which is the widest-spread standard for GPS device communication (more info about this in Wikipedia)

It also supports the Garmin communication protocol for most Garmin devices.

  • Garmin Nuvis do not support that standard protocol and, as a result, can't work with GeoAgro GIS. Please be aware that these devices are designed for navigation purposes mostly, and not for measuring.
  • Similarly, other GPS devices such as smartphones or PDAs which do not support this protocol are currently not supported by GeoAgro GIS.

I was working with a project, then I created a subproject within. Once I opened the subproject, some layers disappeared. How can I see them again?

If a subproject's within a project, you will be able to see the subproject's layers when you open the main project. However, you won't be able to see the project's layers within the subproject. If you want to view all your layers, open your main project.

Related articles

Projects panel

I have added names for the features in a layer, using one of that layer' features in a layer. However, I can't see the names of each feature in my map. How can I show them?

To have those names show in a map, you need to set up the symbology to use that particular field you used to name those features. To access the Symbology tab, select the layer you want to modify and click on the Edit Cartography tool. A window will pop up with two tabs as shown in this picture . Click on "Symbology" to access the tab. To see how label the polygons with an attribute, read this article.

Related articles