Splitting a wing into ribs on iterations.

darren_13

Im not getting any errors but also not getting any results, the idea is to split a wing into ribs and delete the bits in between, however user can specify rib number and thickness etc...

var halfrib=Ribthick/2;

        

        for (var i = intervals; i < Length; i += intervals)//outerloop for each rib

        {

            for (var j = -1; j == 1; j += 2)//inner loop for either side of rib

            {

                

                cPlane(context, id + i + j + "cplane1", { 

                    "entities" : qUnion(qCreatedBy(definition.selectPlane,EntityType.FACE)), 

                    "cplaneType" : CPlaneType.OFFSET, 

                    "offset" : (i+j*halfrib)*meter, 

                    "angle" : 0.0 * degree, 

                    "oppositeDirection" : false, 

                    "flipAlignment" : false, 

                    "width" : 0.15 * meter, 

                    "height" : 0.15 * meter });

                

                    

                splitPart(context, id + i + j + "split1", { 

                    "splitType" : SplitType.PART, 

                    "targets" : qUnion(qCreatedBy(id + "Loft1", EntityType.BODY)), 

                    "tool" : id + i + j + "cplane1", 

                    "keepTools" : false, 

                    "faceTargets" : qUnion([]), 

                    "faceTools" : qUnion([]) });

                

            }

        

        }

Is there a code error or is it possible the plane isn't intersecting the wing?

NeilCooke

Hi Darren, I would recommend using the "op" functions directly where possible - use opSplit if you can. In your example above "tool" should be a query so use qCreatedBy.

darren_13

Ok I did that but same results, is there an 'op' equivalent of cplane I should use that allows me to offset? alternatively I could just use the normal I have and use that to define a position but how would I call that in created by?

something like:

plane1=plane(normal*i+j*halfrib,normal)

qunion(qcreatedby(plane1, EntityType.FACE) but plane1 wouldn't change name on each iteration?

code now reads:

var halfrib=Ribthick/2;

        

        for (var i = intervals; i < Length; i += intervals)//outerloop for each rib

        {

            for (var j = -1; j == 1; j += 2)//inner loop for either side of rib

            {

                

                cPlane(context, id + i + j + "cplane1", { 

                    "entities" : qUnion(qCreatedBy(definition.selectPlane,EntityType.FACE)), 

                    "cplaneType" : CPlaneType.OFFSET, 

                    "offset" : (i+j*halfrib)*meter, 

                    "angle" : 0.0 * degree, 

                    "oppositeDirection" : false, 

                    "flipAlignment" : false, 

                    "width" : 0.15 * meter, 

                    "height" : 0.15 * meter });

                

                opSplitPart(context, id + i + j + "splitPart1", {

                        "targets" : qUnion(qCreatedBy(id + "Loft1", EntityType.BODY)),

                        "tool" : qUnion(qCreatedBy(id + i + j + "cplane1", EntityType.BODY))

                });

                

            }

        

        }

I really do appreciate the help, Darren.

lemon1324

Given that the ribs are all at the same angle, it might be easier to use boolean subtraction:

For each gap between the ribs, generate a rectangular prism that touches each rib face, and is longer than the wing an at least through the full thickness. Then, in a single boolean subtraction, choose all of these prisms as your tools, and the wing as the target.  Similar code is in the Box Joint or Laser Joint examples in the community showcase.