osm_descriptors: Element descriptors

In osmar: OpenStreetMap and R

Description

For getting OSM data and finding elements in an osmar object one needs to describe the data—here we provide a simple description language.

Usage

  node(object)

  way(object)

  relation(object)

  ## Default S3 method:
 node(object)

  ## Default S3 method:
 way(object)

  ## Default S3 method:
 relation(object)

  attrs(condition)

  tags(condition)

  refs(condition)

  ## S3 method for class 'condition'
 relation(object)

  ## S3 method for class 'condition'
 relation(object)

  ## S3 method for class 'condition'
 relation(object)

Arguments

object	The descriptor; see details
condition	Condition to describe the object

See Also

bbox

Examples

## Description by ID (*.default):
  node(1)
way(1)
relation(1)
## Description by condition (*.condition):
  node(tags(v == "Marienplatz"))
## Description by condition (*.condition):
  way(attrs(id == 17458))

osmar documentation built on May 1, 2019, 7:33 p.m.