Tuesday, 8 July 2014

Using Mozilla Webmaker to create a map of all Gurdwaras (Sikh Temples) in Bradford, UK

I have created a map of all the Gurdwara Sahibs in Bradford. It uses leaflet.js and openstreetmap for the mapping. It was all created in Mozilla Thimble which allows for easier javascript and html editing through an online editor.

Monday, 7 July 2014

Geocoding address data in Excel using google Geocoding API

I had a long list of addresses that I needed to show on a map. I found a great article that showed exactly how to call googles geocoding mapping from Excel.

The only issue I had was that Googles API doesn't like it if too many requests are made too quickly so I created a function to add the geocoding calculation into a column one cell at a time and waiting one second between calls.

Below is the function

Sub Geocoding100()
    Dim I
    For I = 1 To 100
        ActiveCell.FormulaR1C1 = "=GoogleGeocode(RC[-1])"
        ActiveCell.Offset(1, 0).Select
        Application.Wait (Now + TimeValue("00:00:01"))
        Next I
End Sub
I can leave this function running in the background to geocode a list of addresses in excel and I am not hammering Google Geocoding API.

Its a win win situation!