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Enabling Geocoding Feature

Geocoding feature is used to convert customer/supplier address data into geographical coordinates that can later be used for data visualization on a Map chart. This feature can be used in any HansaWorld data cube for which customer (CUVc) register is imported.

1. Create a TomTom Account

For the geocoding feature to work, you have to create an account with TomTom (https://developer.tomtom.com/user/register) and get a consumer API key for the Search app. Please check the TomTom documentation regarding the number of free API calls per day and the information about purchasing additional credit for the TomTom service.

2. Enable Geocoding (For Enterprise Users)

If you are an Enterprise user, you should enable geocoding according to the following instructions, but if you are a Cloud user, please, contact us at support@flex.bi and we will do it for you.

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• Add the following code to your config/eazybi.toml file:

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  [[regular_jobs]] job = "Geocoding.perform" every = "24h"

  Specify a new regular job Geocoding.perform and the frequency for the execution of this job. In the code example below, a frequency of 24h is set. You can specify a value that corresponds to your needs.
  
  

• Add the following code to the [general] section of your config/eazybi.toml file:
  

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  tomtom_api_key = "<your_tomtom_api_key>" tomtom_base_URL = "api.tomtom.com" tomtom_version_number = "2"

  
  In the code block above, you have to replace <your_tomtom_api_key> with your actual TomTom API key. Also, you have to check if the defined version is the current version of the API.
  
  

• Define the following plan parameters in the Update Account section's Plan parameters box of your flex.bi account:
  

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  enable_geocoding = true min_address_precision = 8 min_address_similarity = 0.85

  You can also use the following plan parameter, to enable debugging mode and log geocoding errors:

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  debug_geocoding = "error"

  
  

• min_address_precision is the minimum geocoding result precision that is required to save the latitude and longitude values. The recommended value is 8, but you can increase it, to make the rules for result acceptance more strict, or decrease it, to make the rules less strict. The precision is a value returned by the TomTom service together with the geocoding results, which specifies how precise are the returned results based on the TomTom algorithm.

• min_address_similarity is the minimum similarity between the original address and the address returned from the geocoding service. The recommended value is 0.85, but you can increase it, to make the similarity rules more strict, or decrease it, to make the rules less strict. The similarity is a value calculated by comparing the address saved in flex.bi and the results returned from the TomTom geocoding service.

If one of the mentioned minimal values are not met by the result received from the TomTom geocoding service, it is deemed to be too imprecise and is not saved in flex.bi. The affected customer/supplier record is assigned a value of -1 for the property Geocoding needed and is skipped during the next geocoding runs, until the customer/supplier information is altered, providing more address details. Also the address and precision returned from the geocoding service is saved in Address Precision and Geocoding address properties, respectively, to help you determine if you should adjust the address information in flex.bi or the minimum precision or similarity parameters, to get better geocoding results. The calculated similarity is saved in the Address similarity property. To learn more about these limits and adjusting your address data for better geocoding results, see How To Use Geocoding for HansaWorld with TomTom Integration?.Troubleshooting section below. 

3. Import Your Data

If you haven't imported any data yet, proceed with data import.

If you have already imported data, make sure that you have imported the customer register (CUVc). If you haven't done that, import this register. After importing customer register, geocoding will be run automatically according to the schedule you set in the step 2.

4. Select Calculated Members For Latitude and Longitude

In this example, we will use the Customer dimension, but you can also do this for the Supplier dimension.

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[Supplier].CurrentMember.getProperty('Lng')

5. Select Measures To Be Shown Your Map Chart

Select all other measures that you want to show on a map.

6. Select OpenStreetMap Or Wikimedia Map

Go to Map tab and select OpenStreetMap or Wikimedia map.

By hovering over a point on the map, you can see the selected measures for this location.

Troubleshooting

If you are getting an errorDeveloper Over Qps, it means that your geocoding request frequency is too high. To reduce request frequency, set a sleep interval between the requests, using the following parameter in the eazybi.toml file. The default value is 2 seconds:

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To include these reports in your flex.bi account, just export report definitions from our Templates library and import them in your account (see instructions in Report Templates Library How to export/import report and dashboard definitions).

Adjusting Minimum Address Precision and Similarity Parameters

If, after comparing the geocoding result stored in the Geocoding address property and customer/supplier address data stored in properties street, city, geocoding_needed, inv_addr2, inv_addr3, inv_addr4, country_code, you feel that the geocoding result is good enough to be stored in the system, you can lower the minimum address precision and similarity limits (see step 2) to match the values in properties Address precession and Address similarity. After changing these values in the Update Account section's Plan parameters box, all you have to do is wait for the next scheduled geocoding run when the latitude and longitude values will be fetched for the particular customer/supplier.

Likewise, if you feel that the geocoding results stored are not precise enough, you can increase the minimum address precision and similarity limits (see step 2).

Improving Customer/Supplier Address Data In HansaWorld

If no geocoding results are returned for a particular customer/supplier or the results are not precise enough, this can be caused by missing, incomplete or wrong address data in HansaWorld. As mentioned before, Geocoding uses all of the following customer/supplier properties: street, city, inv_addr2, inv_addr3, inv_addr4, country_code, so these are the values that you should check and improve if necessary. The following are some basic tips for checking and improving address data in HansaWorld:

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