aRTlayer-getSetMetric {aRT}R Documentation

Set Metrics

Description

Return the result of a metric evolving set operations (union, intersection, difference and xor).

Usage

## S4 method for signature 'aRTlayer':
getSetMetric(object, metric, ids=c("1","2","3"))

Arguments

object Object of class aRTlayer.
metric A set metric among:
ids The ids which to be used in the operation. Metrics difference and xor use only two ids.

Author(s)

Pedro Ribeiro de Andrade Neto

See Also

See aRTlayer-class to the description of this class.

Examples

## Not run: 
## difference between two geometries
getSetMetric(layer, "difference", ids=c("1", "2"))

## union of all geometries of the layer
getSetMetric(layer, "union", ids=getGeometry(layer)$id)
## End(Not run)
[Package aRT version 0.4-0 Index]