Finally the tabular data can be JOINED to the spatial features in QGIS.Each group investigated four plazas in Granada, most groups collected information manually, all this data must be converted into a single. Therefore, the recommended use of KML as a data entry tool is to store UNIQUE IDENTIFIERS in the "Name" field, and one textual attribute in the "Description" field.Īny additional attributes or variables related to specific Placemarks should be stored in a separate spreadsheet, using one UNIQUE IDENTIFIER for each row. To sum up, the import of KML into QGIS is very simple, but the import will not be able to parse out multiple attributes saved into the "Description" field. Jump ahead to the JOINS module for complete guide to Joins in QGIS. go to the Shapefile layer PROPERTIES - JOINS tab, and run the join, using the KML.Name field as the Unique Identifier for the Join. open the tabular data in QGIS using Add Vector Layerģ. If we were to store other attributes and variables related to these spatial features in a table (Calc, CSV, etc), we could join them using the following steps Ģ. KML is considered a regular Vector format, so go to ADD VECTOR DATA and browse to your KML file, then change the encoding to UTF-8 and after you click BROWSE change the file format (on the lower right) to either Keyhole Markup, or All Files, in order to see your. Later in this module, we will make use of the NAME and DESCRIPTION fields in a way that makes them actually functional when importing into GIS.īut first, let's simply open the Pyramids file in QGIS to take a look at it. NAME, which is a simple string, and DESCRIPTION, which is also a text string, but is wrapped within CDATA section. It turns out that parsing this CDATA, without having an exact schema of the contents is not trivial.Įssentially these are the only free-text fields containing attributes related to the placemrk. Opening the KML file with GOOGLE EARTH shows the typical placemark symbols (pushpins) scattered along the Nile Riverįrom this example, we can see that the section is fairly straightforward, but that the is problematic because it includes a great deal of or or other elements within the CDATA section.
In this module we will demonstrate the basic use of KML in QGIS and a few tricks that will make it possible to store attributes (in a separate spreadsheet) and join them to the correct spatial features.Ī quick search for KML of Egypt found some layers of Egyptian Pyramids. However, there are some particular aspects of the KML notation that make it less than optimal for data entry, especially for the annotation of spatial features (aka "placemarks") with attributes, as we expect to do in GIS.
#Upload kml to csv free
Since KML files can be created using the free (and relatively easy to use) Google Earth software, it has become quite popular.
The KML technology was purchased by Google in 2004, and became the main format used by the Google Earth application. In our exercise, we will prefer the KML format, which we can view and manipulate as needed. KMZ is a compressed version of the KML to save disk space and transfer time. KML is a "flat text" format which can be read and edited with an ordinary text editor. KML and KMZ files ( Keyhole Markup Language) are stored in an XML notation designed for visualizing and annotating geographic information.
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