Graphical User Interface for the Container Loading Problem: [An aproach using JavaScript]

This paper presents a Graphical User Interface for a service used to solve the Container Loading Problem as applied to the logistic industry, commonly encountered in transportation and wholesaling industries. This interface allows users to see how items (boxes) are to be placed in the container. In order to decide where exactly to locate each item, we used two evaluation heuristics based on a fill-by-levels strategy in which the items are storaged into the container. The user must choose the input file with the definition of the problem and the solution with the coordinates for each item inside the container. This information is then used by the GUI to arrange the boxes. However, the solutions given by evaluation heuristics can be modified using the mouse. The users can remove or exchange the items inside the container. Between of the features presented by this interface is the ability to keep track of all solutions that were rejected by the heuristics in its search for the final solution. The GUI was implemented using JavaScript and Three.js, a 3D library. While the heuristics were coded using C/C++.