getpoints: getpoints selects any lat-long records within a view
In haddonm/abspatial: A set of functions to assist mapping Abalone Spatial data

Description Usage Arguments Value Examples

given a particular view (that is the leftlong, the rightlong, the uplat, and the downlat - as a vector of 4) getpoints will select those records from a data.frame being explored. This prepares the data for summarizing effort, catch, divers, etc.

1	getpoints(view, dat, Long = "long", Lat = "lat")

`view`	the leftlong, rightlong, uplat, and the downlat as a vector of 4 which identifies the window onto Tasmania being considered.
`dat`	a data.frame usually obtained from getlatlong applied to a SpatialPolygonsDataFrame. But it could be any that had a long and a lat field within it.
`Long`	the name of the longitude column in the data.frame. defaults to long
`Lat`	the name of the latitude column in the data.frame. defaults to lat

a data.frame containing the specific records associated with the lat-long records within the area of the view.

## Not run: 
 # ab <- readRDS(paste0(datadir,"G1Ha_2018_10_23.rds"))#get spatial obj
 # abdat <- getlatlong(ab)     # convert to data.frame + lat long

## End(Not run)

haddonm/abspatial documentation built on June 7, 2019, 9:54 a.m.