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mjfulke's avatar
mjfulke
Icon for Microsoft Employee rankMicrosoft Employee
9 years ago

Create Your Own Custom Map for Power BI

Hi, I’m sharing back with community here (I encourage you to do the same as you come across your own useful Power BI tips and recipes)   In this post, I will share how to create a custom map file t...
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mjfulke's avatar
mjfulke
Icon for Microsoft Employee rankMicrosoft Employee
9 years ago

My suggestion is to use mapshaper.org and use the "Simplify" feature.  You will find that by reducing the complexity of your shapes up to as much as 50-60% you can visually get about the same map.  For example, I have a map of all the counties in the U.S. which is approximately 3000 shapes.  The total file size is 1.25 MB.    It's not as much a Power BI problem but a PC/device issue trying to render lots of detailed Polygons.  Use mapshaper to reduce the detail of your shapes and it should render faster.

Capstone's avatar
Capstone
Icon for Resolver I rankResolver I
9 years ago

Thank you. I used the simply option in mapshaper and it certaintly helps render faster.

  • hdunn's avatar
    hdunn
    Frequent Visitor
    9 years ago

    Hi,

    Does your custom map work with slice?

    Helen 

    • mjfulke's avatar
      mjfulke
      Icon for Microsoft Employee rankMicrosoft Employee
      9 years ago

      absolutely works with slicers!

      • hdunn's avatar
        hdunn
        Frequent Visitor
        9 years ago

        Strange. Mine never worked. There is no way to assign the relationship with the map data. Do I need the same physical column names for the location in the data and the json file?