Problem with opLoft and qUnion([qNthElement(......query

tonvis

Can someone of the team please help me out ?

Working on a Bevelgear FS combining Neil Cooke's Spurgear and ika Hölsö's FS , I got problems with opLoft to use two teethprofiles  as edgequeries from qUnion([qNthElement( .......

Lofting whole sketches is no problem but  I just need a cut-outpart of the sketches:

/* 687

    var vertrices = qUnion([outer_modul, inner_modul]);
    var profileSubqueries = [qCreatedBy(id + "sketch5"), qCreatedBy(id + "sketch6")]; 

    opLoft(context, id + "loft1", {  //@opLoft: LOFT_VERTEX_ADDITIONS error
                "profileSubqueries" : profileSubqueries,
                "vertrices" : vertrices
            });
*/

I has tried everything. It may be very simple but I can't find a solution.

When working in partstudio it is no problem to loft the both faces.

May thanks for your help

tonvis

https://cad.onshape.com/documents/c475ac9c8553aa3d225a3fb5/w/7b2a4fb042e185c7fbd27fa6/e/c2da6a77c5fd6e06ac29ae0c

tonvis

I found the answer 

    //******************************forming teeth *********************************************
    /**  to get the teeth_faces out of all other faces, this is the right way to do it
     *   use qSketchRegion(id) and qUnion([qNthElement(faces, n)])
     *  I was using edges first, but that was the wrong way of doing
     *  with no result
     * */
    // -----------------solves all the faces to select from --------------------------

    var faces = qUnion([qSketchRegion(id + "sketch5"), qSketchRegion(id + "sketch6")]);
    //debug(context, faces); //debug: Query resolves to 2x6 faces


    // ----------------- get the teeth_faces  out of 6 faces -------------------------------
    //var faceQuery0 = qUnion([qNthElement(faces, 0)]);
    var faceQuery1 = qUnion([qNthElement(faces, 1)]); //2 x onder
    //var faceQuery2 = qUnion([qNthElement(faces, 2)]);
    //var faceQuery3 = qUnion([qNthElement(faces, 3)]);
    var faceQuery4 = qUnion([qNthElement(faces, 4)]); //2 x boven
    //var faceQuery5 = qUnion([qNthElement(faces, 5)]);
    //debug(context, faceQuery1);
    //debug(context, faceQuery4);

    /** no problem for loft any longer ! it was really hard  to find the solution */
    opLoft(context, id + "loft1", {
                "profileSubqueries" : [faceQuery1, faceQuery4]
            });

tonvis

NeilCooke

You probably need to be more specific with your query: var profileSubqueries = [qCreatedBy(id + "sketch5"), qCreatedBy(id + "sketch6")]; 

Sketches have edges, faces, vertices, bodies - which ones are you lofting?

tonvis

Hello Neil,

I am aware of your point but that is just my question . Featurescript is not  simple to make the right queries.

On the sketch picture you see the corresponding cut-out for teeth, but I can't get hold on these faces,edges or bodies to obtain a loft

What query do I need ?

Thanks for your quick reaction

tonvis

NeilCooke

try:

var profileSubqueries = [qCreatedBy(id + "sketch5", EntityType.FACE), qCreatedBy(id + "sketch6", EntityType.FACE)];

tonvis

Neil,

Thanks for your answer.

I had tried this before and then I got this total sketch , but I need only loft a vew parts out of it.

If I      // --------------------------------- delete unused edges ------------------------------------------
    opDeleteBodies(context, id + "deleteBodies1", {
                "entities" : delete_edges
            });

All will disapear and I get @opLoft: LOFT_SELECT_PROFILES error.

I hope that you help me out with a solution toget  hold on  :

   var outer_modul = qUnion([ // 2x bottom edges
            edgeQuery_5,
            edgeQuery_6,
            edgeQuery_8,
            edgeQuery_10
        ]);

and 

   var inner_modul = qUnion([ // 2x top edges

            edgeQuery_17,
            edgeQuery_16,
            edgeQuery_19,
            edgeQuery_21
        ]);

They won't listen to me !

tonvis

tonvis

I found the answer 

    //******************************forming teeth *********************************************
    /**  to get the teeth_faces out of all other faces, this is the right way to do it
     *   use qSketchRegion(id) and qUnion([qNthElement(faces, n)])
     *  I was using edges first, but that was the wrong way of doing
     *  with no result
     * */
    // -----------------solves all the faces to select from --------------------------

    var faces = qUnion([qSketchRegion(id + "sketch5"), qSketchRegion(id + "sketch6")]);
    //debug(context, faces); //debug: Query resolves to 2x6 faces


    // ----------------- get the teeth_faces  out of 6 faces -------------------------------
    //var faceQuery0 = qUnion([qNthElement(faces, 0)]);
    var faceQuery1 = qUnion([qNthElement(faces, 1)]); //2 x onder
    //var faceQuery2 = qUnion([qNthElement(faces, 2)]);
    //var faceQuery3 = qUnion([qNthElement(faces, 3)]);
    var faceQuery4 = qUnion([qNthElement(faces, 4)]); //2 x boven
    //var faceQuery5 = qUnion([qNthElement(faces, 5)]);
    //debug(context, faceQuery1);
    //debug(context, faceQuery4);

    /** no problem for loft any longer ! it was really hard  to find the solution */
    opLoft(context, id + "loft1", {
                "profileSubqueries" : [faceQuery1, faceQuery4]
            });

tonvis

Jake_Rosenfeld

@tonvis

It's not really a great idea to rely on qNthElement().

What I would do instead is something specific like:

const face1 = qContainsPoint(qSketchRegion(id + "sketch5"), vector(1, 2, 3) * inch);
const face2 = qContainsPoint(qSketchRegion(id + "sketch6"), vector(3, 2, 1) * inch);

Replacing the position with an actual position that you know exists on that sketch face.