This example shows how a LINGO model can be embedded into a web application using its REST API. The model solves the traveling salesman problem with the Dantizg-Fulkerson-Johnson formulation. Great circle distances are used to compute distances between markers on the map.

To add a location to the model, double click the map at the desired location. A marker will appear, along with a new row on the left side table. To edit the name of a location, click on the name cell and enter the new name. Clicking on a marker will display the locations name. Input at most 13 locations. Double clicking a marker will remove it from the map, and the model. Instead of manually adding map markers, a csv file with three columns: name, latitude, and longitude can be uploaded. To do so click the button: Choose File and select a csv file to upload. Then click on the button: Upload, to add the data to the map and model. When the data are ready, click Solve! to find the optimal tour through each location.

To learn how you can use the LINGO REST API with your application, contact info@lindo.com.