/*
        This example demonstrates how to set up, modify, and remove 
        a cutting line for a grid on its Unfold property.
*/
NewScene(null, false);
var g = CreatePrim("Grid", "MeshSurface");
// Apply the Unfold property to the grid and get a pointer to it
UnfoldApply(g);
var u = g.Properties("Unfold");
// Set the cutting line using 7 edges and log it
UnfoldSetCut(u, "grid.edge[14,34,51,68,71,73,75]");
LogCuts(u);
// Add edges 2 and 3 to the current cutting line and log it again
UnfoldAddToCut("grid.Unfold", "grid.edge[2,3]");
LogCuts(u);
// Reset the cutting line 
UnfoldClearCut("grid.Unfold", "grid");
LogCuts(u);
// Launch Unfolding computations (since there's no cutting line 
// there's nothing to do, as you can see from the Texture Editor)
UnfoldUpdate("grid.Unfold");
OpenView("Texture Editor");
// -------------------------
//
//      Expected results
//
// INFO : Unfold cutting line: grid.edge[14,34,51,68,71,73,75]
// INFO : Unfold cutting line: grid.edge[2,3,14,34,51,68,71,73,75]
// INFO : Unfold cutting line: [empty]
// -------------------------
//
//      Helper function
//
function LogCuts( in_prop )
{
        var a = Application;
        UnfoldSelectCut(in_prop);
        if (a.Selection.Count) { 
                a.LogMessage(in_prop.Name + " cutting line: " + a.Selection(0)); 
        } else { 
                a.LogMessage(in_prop.Name + " cutting line: [empty]"); 
        }
        
}