A map chart visualization consists of one or more layers that display different types of information on a map.The following are the types of layers that can be added to a map chart1:
Marker layer: This layer displays data points as markers or pies on the map, based on coordinates (usually latitude and longitude) or geocoding (matching data values to geographic locations). Markers can be colored, sized, and shaped by data columns, and can show tooltips and details on demand. Pies can show the distribution of multiple categories within each data point.
Feature layer: This layer displays geographic features such as countries, regions, states, or custom shapes on the map, based on shapefiles or WKT (well-known text) format. Features can be colored by data columns, and can show tooltips and details on demand. Features can also be used for spatial calculations such as aggregating data by area or finding nearest neighbors.
Image layer: This layer displays a custom image on the map, such as a floor plan, a stadium, or a conference venue. The image can be aligned and scaled to fit the map coordinates, and can be used as a background for other layers.
Map layer: This layer displays the background map that provides the geographic context for the map chart. The map layer can be selected from a list of predefined maps, or customized by adding TMS (tiled map service) or WMS (web map service) layers from external sources.
WMS layer: This layer displays a dynamic image from a web map service (WMS) on the map, such as weather, traffic, or satellite imagery. The WMS layer can be configured by specifying the URL, the layer name, and the style of the web service.
The icon and data options are not valid types of layers in a map chart.Reference:
How to Use the Map Chart
Map Chart Properties -- Layers
GeoAnalytics Resources - WMS and TMS Layers
How To Get Started With Spotfire Map Charts
Creating a map chart
