Shape map

[Delgirluk77]

Hi all, I have a dataset covering the northwest of england with the fields postcode, LSOA code, IMD Decile 1 - 10, and referrals count. I want to show a map in powerbi that colours areas based on the IMD Decile 1 - 10, and also show the referrals as dots against the postcodes on the map. Can't get anything to show on the map though, any ideas please?

[lbendlin · Accepted solution]

Did you create the topojson file with the appropriate shapes and attributes?

[Delgirluk77]

No, this is the first time I'm using a shape map. The youtube video i watched didn't mention topojson files. How do i do this please?

[Delgirluk77]

Thank you @lbendlin 

I have now created a Shape map that includes LSOA and IMD Deciles as the colour saturation.  The 2nd part I wanted to do was plot referral count onto the same map to show as a dot for each referral, but it doesn't look like this is possible - anyone have any ideas if this can be done please?

[grognard]

You can get the geojson (not to be confused with topojson) from here by selecting "download" then finding the "geojson" option), you can then drag and drop that map into a tool called mapshaper to convert the geojson to topojson. More in depth instructions are provided on Microsoft Learn.

Once you are done that you can set your map type to "Custom map" and use the "Add a map type" > "Browse" option to find the file the topojson file. if everything works correctly your LSOA codes will coresspond with regions of your map and you will be able to "bin" your data based on location.

This video here goes into more detail.

 

[lbendlin]

Follow @grognard 's suggestion. Make sure not to lose the attributes during the mapshaper conversion.

To overlay non-shapes you may have to use a different chart type like Azure Maps that supports both topo shapes and markers. Otherwise use tooltips.