When you hover over a Linemap chart, a popup box appears that contains the column information for the highlighted area. You can copy this information to the clipboard. If the column information includes a URL, you can click the URL to open it in a browser.
This example uses a dataset that maps geological fault lines in the United States of America, similar to datasets available at the Koordinates.com site. Set the Geo field to mapd_geo.
You can use length to determine the width of the lines to make longer faults stand out. You can also use a text label for the color, which provides a legend and a guide to the type of faults displayed.
You can fine tune the graph further with enhancements such as changing the map theme, reducing the number of lines, changing the size domain and range, and adding values to the pop-up box.
Loading Linestring Data for Linemap
You can load your own linestring data to create Linemap charts. Linestring coordinates must be:
Expressed as longitude latitude
Between -180 to 180 (longitude), -90 to 90 (latitude)
North and East coordinates are positive numbers, South and West are negative numbers.
For example, you can import this CSV file with coordinates for Los Angeles to New York, San Francisco to Miami.