How to Use the Map Chart
A map chart is normally built by several different layers.
Each layer can be configured separately with regards to coloring, labels
and appearance. The order of the visible layers (and the transparency
of each layer) determines what will be visible in the final map chart.
For example, place transparent layers containing labels at the top.
The key to positioning different layers relative to each
other is in most cases based on geocoding,
and the geocoding is in turn based on a column
matching between the data table containing the data of interest and
a geocoding hierarchy. If any issues should arise, it is often the column
matching that needs to be reviewed.
Since the column matching allows you to view data from
multiple
data tables in one visualization, you can use data from one data table
to display information in a layer based on a different data table. For
example, if you create a feature layer based on a geocoding data table
to show different regions in your country, you can use your own sales
data table to color the regions.
To create a new map chart
On the authoring bar, click
to open the
Visualization types flyout.
Drag the Map
chart visualization to the wanted position on the analysis
page.
Response: A default map chart is created. You can
change the default layers in the Options
– Map Chart dialog.
Right-click the visualization
to display the pop-up menu and select Properties.
Response: The Map
Chart Properties dialog is displayed.
Go to the Layers
page to modify the layers available.
Comment: You can double-click a layer to open the
Settings for that layer.
To create a new layer
Create a map chart and go
to the Layers page in the Map Chart Properties,
as specified above.
Click Add
and select the layer type of interest.
Comment: You can add a Marker Layer, Feature Layer,
Map Layer, Image Layer, or WMS Layer. Marker layers and Feature layers
can either be based on a data table in the analysis or on a geocoding
hierarchy from the library. Map Layers are either reference layers
retrieved from the standard default map layers, or layers retrieved
from any Tile Map Service (TMS layers).
Tip: You can reuse settings
from an existing layer in the analysis. Click Duplicate
to duplicate the selected layer, or to add a copy of a layer from
another map chart in the analysis.
Use the Settings
dialog for each of the new layers to define what to show.
To get the geographical coordinates for a location
On the map chart, right-click
the location you want the geographical coordinates for.
Response: In the opened menu, the latitude and
longitude for the location are displayed to the right of Copy
map coordinates.
Tip: You can
copy the latitude and longitude by clicking the Copy
map coordinates item, and then paste the values into a document.