Using your own data with GeoBases

Introduction

How to use your own data with GeoBases? Well, it depends on your data, mainly it is formatted using CSV or not.

CSV formatted data

If you have a CSV file, this should work:

$ cat file.csv | GeoBase -i delimiter headers indices

With:

• delimiter for, well, the column delimiter
• headers for column names separated by a '/'
• indices for columns used for key generation, also separated by a '/'

In our case:

$ cat file.csv
d1 48.22 2.33
d2 49.33 2.24
$ cat file.csv | GeoBase -i ' ' name/lat/lng name

To add file.csv as a permanent new data source, you have to use the admin mode to modify the YAML configuration file:

$ GeoBase --admin

Just answer the questions!

Not CSV formatted

If your data source is not CSV formatted, fear not. You just have to use the Python API to create the GeoBase. If you can manage to transform your data source into a Python file-like object, you can load it in one line (let's take the same file for example):

from GeoBases import GeoBase

g = GeoBase(data='feed', 
            source=open('file.csv'),
            delimiter=' ',
            headers=['name', 'lat', 'lng'],
            key_fields=['name'])

g.getLocation('d1') # (48.22, 2.33)
g.visualize()

If it is not possible to have a file-like, fear not! You just have to feed the object this way:

from GeoBases import GeoBase

g = GeoBase('feed')

g.set('d1', lat=48.2, lng=2.4)  # this data may come from anywhere
g.get('d1', 'lng') # 2.4
g.visualize()