spat_xml: Creates the spatial part of a filter in XML format

In HanOostdijk/HOQCwfs: Web Feature Service (WFS) read-only interface

Creates the spatial part of a filter in XML format

Description

Can be used to create in XML format the spatial part of spatial operators such as Disjoint, Equals, DWithin, Beyond, Intersects, Touches, Crosses, Within, Contains, Overlaps and BBOX .

Usage

spat_xml(
  gemprop,
  feature,
  distance = NULL,
  version = WFS_get_version(),
  spat_fun = "DWithin",
  units = "meters"
)

Arguments

gemprop	Character string with the name of the geometric field
feature	Character with XML description of feature. Description can be result of spat_feature()
distance	Number scalar with distance for DWithin operator. Unit given by argument units
version	Character string with the WFS request version
spat_fun	Character string with the name of the spatial operator
units	Character string indicating the units of the argument distance

Value

Character vector with the created xml fragment

Examples

## Not run: 
spat_xml('geometrie',
      spat_feature('point','EPSG:28992', point_coords),
             50) # filters features within 59 meters of point
spat_xml('geometrie',
       spat_feature('Polygon','EPSG:28992',list(outer_coords,hole_coords)),
      spat_fun='Intersects') # filters features intersecting polygon with hole

## End(Not run)

HanOostdijk/HOQCwfs documentation built on March 6, 2023, 8:18 a.m.