opExtrude "endTranslationalOffset" issue

EvanReese

I'm working on a feature with an extrude and I'd like to imitate all of the end bound options of the native extrude feature. It's all working right except when I try to add an offset to an endBound entity. If I add any value but 0*inch to the endTranslationalOffset I get @opExtrude: EXTRUDE_FAILED. What might I be missing? Here's what the operation looks like:

opExtrude(context, id + "pocketExtrude", { "entities" : pocketExtrudeFaces, "direction" : pocketDirection, "endBound" : thisEndBoundType, "endBoundEntity" : thisEndBoundEntity, "endTranslationalOffset" : offsetDistance, "endDepth" : pocketDepth });

EvanReese

As I understand it, flipping the offset direction is handled before the opExtrude by just making the offset value negative. The documentation says, "The translational offset between the extrude end cap and the end bound entity. The direction vector for this is the same as direction: negative values pull the end cap away from the bound entity when endDepth is positive."

Your questions did prompted me to look again at the full list of entries though for opExtrude again it seems that I needed to add

"isStartBoundOpposite" : false,

which is working now. I'm not sure what this field is doing in my case, since I don't even have a start direction or bound or anything.

S1mon

At least in the native one, the direction sometimes seems counter-intuitive when there's an offset. I wonder if something as simple as flipping the direction might help? Isn't there also another direction when there's an offset involved?

EvanReese

As I understand it, flipping the offset direction is handled before the opExtrude by just making the offset value negative. The documentation says, "The translational offset between the extrude end cap and the end bound entity. The direction vector for this is the same as direction: negative values pull the end cap away from the bound entity when endDepth is positive."

Your questions did prompted me to look again at the full list of entries though for opExtrude again it seems that I needed to add

"isStartBoundOpposite" : false,

which is working now. I'm not sure what this field is doing in my case, since I don't even have a start direction or bound or anything.