How do I get the endpoints of a curve?

joshtargo

I want to have point1 and point2 default to the endpoints of the already selected curve. but if someone picks new points explicitly, it will use those chosen points.

I am editing a fork of transformCopy.fs

    annotation { "Name" : "Entities to transform or copy",
                 "Filter" : (EntityType.BODY || (BodyType.MATE_CONNECTOR && InContextObject.NO)) && AllowMeshGeometry.YES && SketchObject.NO,
                 "UIHint" : UIHint.PREVENT_CREATING_NEW_MATE_CONNECTORS }
    definition.entities is Query;



later:……



      const endpoints = evaluateQuery(context, definition.scaleEndpoints);
      
      // Calculate the chord vector from the two selected points
      const point1 = evVertexPoint(context, { "vertex" : endpoints[0] });
      const point2 = evVertexPoint(context, { "vertex" : endpoints[1] });

Caden_Armstrong

Since you are already creating code that takes in two vertices, you could find them from an edge using
qAdjacent(yourEdgeQuery, AdjacencyType.VERTEX, EntityType.VERTEX);
An edge will always have only 2 adjacent vertices that are its endpoint.

Jacob_Corder

also evEdgeTangentLines with parameters [0,1] will give you the points at the end. the array is of lines so it is startPoint = tl[0].origin. endPoint = tl[1].origin