One can paint a map in Power BI with multiple data layers, such as population density maps and sales performance maps, achieved by many features in the inbuilt system or creativity. Using these built-in map visuals (for example, Map, Filled Map, or Azure Maps) or custom visuals from Power BI Marketplace enables layering more data onto a single map.
Importing Multiple Data Layers
Below are the steps for importing multiple data layers:
Base Map Selection: Choose a map visual like Azure Maps, which supports advanced customization.
Layering data: Apply different data fields for latitude, longitude, or region-specific values to present population densities and sales metrics.
For instance:
o Demonstrate population density using a heatmap layer.
Present sales performance using bubble sizes or color-coded symbols.
o Custom Tooltips: To provide other information like demographic info or particular sales figures by hovering the pointer over a particular map point or region.
Theming and Legends: Adjust map styles such as color gradient, transparency, or legend labels to clear the differences in the data layers.
Custom Maps in Power BI
This feature in Power BI enables the use of shape files and GeoJSON files to create custom maps, including custom shape maps.
Custom shapes (such as districts or building shapes) can be imported through the shape map visual feature. Upload GeoJSON files to create a unique region that cannot be found in the standard maps.
Create thematic maps to show areas of case studies, like areas mapped for retail or delivery mapping.
Third-party Map Inclusion: Then, include other mapping solutions, such as Mapbox or ArcGIS, to create advanced visualizations, such as additional elevational data or three-dimensional visual effects, within your generated map.
Make Maps More Interactive
Dynamic Filter: Make layers toggle-able. Slicer between population density and sales metrics, for example.
Conditional Formatting: Dynamic color and iconography based on thresholds (e.g., low sales areas are red, and high-density zones are green).
Drill-Through Options: Activate a drill-through to show specific data when clicking on a particular region of the map.
Carefully designed custom maps can provide insights by interpreting multiple data layers in an easily understood and visually appealing manner.
