Anonymous's avatar
Anonymous
Not applicable
6 years ago

Hi jamesdales,

 

Great work, I love it!!!

I would like to know how you did the revealt trick (Map with Reveal), when you select a point in the map appears the other graph, it is great.

 

 

  • jamesdales's avatar
    jamesdales
    Kudo Kingpin
    6 years ago

    Hi Edwardo

     

    The map has a feature called reveal. What is does is move the bottom of the map upwards when you select something on the map, revealing what's underneath, which can be any other Power BI visuals. It uses Power BI's inbuilt cross highlighting functionaity to filter the visuals underneath to show information related to what you've selected on the map. 

     

    There is a little more information here: https://powerbi.jamesdales.com/how-to-use-icon-map/

     

    James

     

    • Anonymous's avatar
      Anonymous
      Not applicable
      6 years ago

      Hi James,

       

      Thanks a lot for your information, also I want to ask you if you have a method or a threshold to define the numbers of coordinates necessary to create the polygon. I mean, for an specific area why to use 100 geographical coordinatesand not 1000.

       

      Thanks in advance jamesdales 

       

      Eduardo

      • jamesdales's avatar
        jamesdales
        Kudo Kingpin
        6 years ago

        Hi Edwardo

         

        I would always suggest to use the minimum amount of coordinates possible, as the fewer you use, the faster performance will be. There will always be a compromise between showing enough detail vs speed. It's the same with the Power BI shape map.

         

        Also you'll hit the maximum length of a field in PowerQuery which is 32,766 characters, so beyond that you'll need to split the WKT shapes and then concatenate them using DAX in the data model.

         

        James