Querying the edges of a given face

tom_auger

Featurescript question: I have a query containing a single face, which I want to use as my axis for a circularPattern. However, the axis parameter (as far as I can tell) requires an edge not a face. How can I "convert" that face to an edge query such that i can use that as the axis?

NeilCooke

1. You can use either. You will probably get a slightly better performance using opPattern, but it will be negligible.

2. Use qAdjacent(face, AdjacencyType.EDGE, EntityType.EDGE); 

NeilCooke

evAxis will accept a cylindrical face

NeilCooke

Sorry I see you want to use circularPattern (I recommend using opPattern and calculating your own transforms using rotationAround). The axis parameter will probably take a cylinder, though never tried it. 

tom_auger

NeilCooke said:

Sorry I see you want to use circularPattern (I recommend using opPattern and calculating your own transforms using rotationAround). The axis parameter will probably take a cylinder, though never tried it. 

Thanks Neil for your answer. This leads me to two questions:

1. I was a bit daunted by trying to calculate my own transforms and circularPattern is working out brilliantly. What is the reason you are suggesting opPattern? More performant? More flexibility / control? 

2. The item that I wish to use as my axis is the same item that I"m having the user select as the pattern source (i.e.: the original 2D face to be extruded and then patterned). Thus it's starting its life out as a face, hence me wanting to figure out a way to query its edges (did I phrase that right?). I suppose I could use the generated extruded body as the "cylinder" in question, but as a point of learning, I'd like to understand how to get from a query containing a face to a query containing the edge(s) of that face.

NeilCooke

1. You can use either. You will probably get a slightly better performance using opPattern, but it will be negligible.

2. Use qAdjacent(face, AdjacencyType.EDGE, EntityType.EDGE); 

tom_auger

NeilCooke said:

2. Use qAdjacent(face, AdjacencyType.EDGE, EntityType.EDGE); 

Cool I was wondering about that one. The way I read the description was that it would only select "neighbours" which I took to mean edges belonging to OTHER faces, but of course, they would also be part of the "seed" face too, so that makes sense.

I"m trying it and while I'm not getting an error exactly, I'm not getting the results I expected. Let me sit with this for a bit and if I continue to have issues I'll post another question.

@NeilCooke !!