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son ppg [inc] | [nx ny] | [long] [all | four] [tri] [eig] [eigone] [low] [hi] [dob] [auto] [count] [mrf] [fast] [cps] [cpr] [list] |
Description
Specialized command for gridding sonar data or large point sets. The son without the ppg option is covered by the command grp .
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Will remove interior boundaries inside other boundaries in the set of boundary lines.
fast pregriddingfactor
Will speed up gridding using a pregriddingfactor between 1 and 30.
cps surfacename
Check points towards surface in surfacename to get the difference between points and surface. Standard deviation and mean is calculated and saved in [gvar standev] and [gvar mean]. The standard deviation curve is generated in active.
cpr surfacename [def factor | \[lovalue] [hivalue] ]
Check points towards surface in surfacename to get the difference between points and surface. Remove points outside a low and high value which can be factor * standard_deviation using the def argument or directly specified by values lovalue hivalue.
list
Will list the current parameters used in sonar gridding.
Examples
Ex.1: Snap gridding of points
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