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son ppg [inc] | [nx ny] | [long] [all | four] [tri] [eig] [eigone] [low] [hi] [dob] [auto] [count] [mrf] [fast] [cps] [cpr] [lst] |
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]. A standard deviation data set is generated in workspace standev.
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.The remaining points are left in active.
lst
Will list the current parameters used in sonar spiral sort gridding.
Examples
Ex.1: Snap gridding of points
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