We're continuing to get closer to a useful geographical interface for visualizing collections. Using the AIM25-CALM service that Rory's created, we're able to call relevant collections based on time and latitude/longitude filters. From the programming side, Rory created a test interface to experiment with what kind of data we would get with various calls to the service (fig 1).
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| [Fig 1]. Early tests of map showing collections returned from AIM25-CALM service. |
One of the things that we've been experimenting with is the granularity, which defines how many levels of detail exist for a placename. For instance: country/province/city/ or country/state/county/city/. These administrative districts vary by country, but helps us lower the signal to noise ratio. As you can see in Figure 2, the level 4 granularity returns more specific information in France than it does in the United Kingdom.
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| [Fig 2]. Experimenting with maximum granularity yields more results in France than the UK. |
As we move forward with this, we'll be further testing the returns of the service, and refining the user interface to integrate into the Historypin environment.
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