Geocoord (geocoord)

Description

Generates a geocoord from a string as long as it is a valid representation of one of the two supported coordinate systems:

• Latlon - Based on latitude and longitude and represented as sexagesimal coordinates, using degrees, minutes, seconds, and position (for example 40°24'46.3"N 3°41'43.8"W).

• Geohash - Hash representation of coordinates, called geohash (for example ezjmguvj).

How does it work in the search window?

Select Create column in the search window toolbar, then select the Geocoord operation. You only need to specify one argument:

The data type of the new column values is geocoord.

Example

The examples in this article use values in a data table generated from the following CSV file.

If you want to try the example by yourself, download the file and upload it to your domain by clicking Data upload in the navigation pane. Name the new table my.upload.geolocation.data and select Current date as Date parsing type. Learn more about uploading data in Uploading log files.

After receiving the confirmation message, you can access the table from the finder, selecting my → upload → geolocation → data. When you upload data from a file, all the information is included in a single column called message. To split the values into different columns, you can use the Split (split) operation. Click Query code editor in the search window toolbar and paste the following LINQ query to save time:

from my.upload.geolocation.data
select split(message, ";", 1) as geohash_strings

Our geohash_strings column contains strings that we want to transform into geocoord data type.

Click Create column and select the Geocoord operation. Then, select geohash_strings as the Coords string argument. Click Create Column.

The result is a new column (geocoords) containing the same geohash strings but with the geocoord data type.

How does it work in LINQ?

Use the operator select... as...  and add the operation syntax to create the new column. The syntax is as follows:

• geocoord(string)

Example

Note that you must have uploaded the following CSV file to your Devo domain as explained above to try out this example.

Copy the following LINQ script and try the above example on the my.upload.geolocation.data table.

from my.upload.geolocation.data
select split(message, ";", 1) as geohash_strings
select geocoord(geohash_strings) as geocoords