trim_GDM_domain: Trim GDM model domain

In peterbat1/RandR.webtool.dataPrep: Tools to prepare data for the R&R Webtool

Trim GDM model domain

Description

Trim a GDM model domain polygon with a special zone polygon layer

Usage

trim_GDM_domain(
  thisDomainFile = NULL,
  specialZoneFile = NULL,
  makePlot = FALSE
)

Arguments

makePlot	Logical. Make a plot of trimmed domain file on the standard plot device. Default is FALSE.
thisDomain	Character. Path to a geoJSON-format spatial polygon defining the confidence bounds od "domain" for an R&R GDM
thisZone	Character. Path to an ESRI shapefile holding a polygon layer representing "special" zones to be excluded from the confidence bounds of the GDM pointed to by thisDomain

Details

This function is designed to excise one or more polygons from the GDM bounds polygon pointed to by thisDomain. These polygons represent areas for which it is inappropriate to produce an output from the webtool, and could include:

• The range of a threatened sub-taxon;

• One or more regions of strongly differentiated populations not formally described but suggesting the need to sample carefully; or,

• Areas of known or inferred ploidy.

The intention is that if a user clicks inside one of the special regions, then an explanatory or warning popup or other message medium will be displayed.

It is assumed that if there are multiple polygons to be excised, the polygon set has been merge into one multi-polygon shapefile using the companion function combineZones or in a GIS such as ArcMap or QGIS.

peterbat1/RandR.webtool.dataPrep documentation built on June 11, 2025, 8:30 p.m.