ERF Variable |
Description |
v_sasv_delta
|
Self-adjusting space value
delta. SASV automatically adjusts
the spacing value according to the typical spacing value the algorithm finds
in the layer data, making for a faster spacing check. Statistical
analysis shows that:
How
it works
1. The algorithm randomly picks a small number of
features and checks the spacing between them and their neighbors. 2. It calculates the average value for those spacing
measurments, and creates the typical spacing value. 3. This value is multiplied by the value of the ERF
variable v_sasv_delta . 4. The action than
uses this value for the spacing search. The action does not report spacing
larger than this value, although it is smaller than pp_spacing . The SASV value is reported in the special
category: Self Adjust Spacing Value. It is also reported in the
action summary and action attribute. The SASV algorithm can be disabled by setting the
ERF variable v_use_sasv = No (which is the default
value of this ERF variable). |