I understand what a Horizontal Feature Constraint (HFC) does and what the Range does. For example, let's say I have a BSW template point with a HFC looking for BSW. The template point is at 20' Rt. in my template and I have applied a range of 10. That means the point will look for an external reference matching that feature anywhere from 20' to 30' Rt. of the corridor baseline.
I just started doing a review where the Range of this HFC was set to ZERO. I assumed they were just using a horizontal point control for the BSW, but the point control is only vertical. Somehow, the HFC was still working even with a range of zero.
Does a Range set to zero do something I am not aware of? My guess is it just means search out infinitely to the right only.
Does anyone know? I can't seem to find an answer with a quick search.
Thanks
Zach,
Ranges of zero are equal to infinity. Very useful but potentially dangerous as it seems to check left and right simultaneously. So if it finds said feature on the left first, but the intention was to find it out the right it can throw stuff out of whack. Also not recommended from my experience because the lag it can add for the processing time is noticeable.
A value of zero causes the search to find the closest instance of the feature.
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