\begin{ccRefClass}{GraphicsViewPolylineInput} \ccDefinition An object of type \ccRefName\ creates a list of points. A new vertex is inserted every time the left mouse button is pressed. The list of points is emitted on a right click. You can use the \ccc{Escape} key if you want to remove your last entered point in the polygon. The tool can serve at the same time for entering a single point, a polyline with a given number of points, and for open and closed polylines. \ccInclude{CGAL/IO/GraphicsViewPolylineInput.h} \ccParameters The template parameter of \ccc{GraphicsViewPolylineInput} must be a \cgal\ \ccc{Kernel}. \ccInheritsFrom \ccc{GraphicsViewInput} \ccGlue \ccCreation \ccCreationVariable{in} \ccSetTwoColumns{GraphicsViewPolylineInput}{} \ccConstructor{GraphicsViewPolylineInput(QGraphicsScene* s, int n = 0, bool closed = true);} {\ccc{s} is the scene where we want to draw the polyline. \ccc{n} is the number of points of the polyline to generate. If \ccc{c} is equal to 0, the default value, the number of points of the polyline is not limited. When \ccc{closed} is \ccc{true} the function displays a polygon.} \end{ccRefClass}