Add PL Graph Constructor #20
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…-graphs into bugfix-ci-workflow-update
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We propose pl-graph-constructor, a custom interactive element for PrairieLearn that enables students to construct graphs in a drag-and-drop interface and converts the student-entered graph into a DOT-language form to facilitate autograding.
The element provides the student with an empty canvas in which they will construct a graph. This graph can either be graded using pre- or self-defined methods, or the canvas can serve as a sketching element for the student.
In either case, a student can create nodes simply by clicking on the location at which they want to create the node. Edges can be created by selecting the node at which the edge originates and dragging toward the next node.