Querying the Vicmap/Vicplan Web File Services (WFS) Catalogue

Functions used to query Vicmap data through the vicmap_promise class. This includes generic methods adapted from dplyr such as filter, select and collect

vicmap_query()

Establish Vicmap Query

head(<vicmap_promise>)

Return the first n rows of the data

select(<vicmap_promise>)

Select Columns

filter(<vicmap_promise>)

Filter Data

EQUALS() DISJOINT() INTERSECTS() TOUCHES() CROSSES() WITHIN() CONTAINS() OVERLAPS() RELATE() BBOX() DWITHIN() BEYOND()

CQL Geometry Predicates

show_query(<vicmap_promise>)

Show The Query

collect(<vicmap_promise>)

Return Data

print(<vicmap_promise>)

Print a Snapshot of the Data

CQL()

CQL escaping

Vicmap Options and Utilities

Vicmap package options for querying data and functions that return potentially useful data for such as column names, number of rows or layers available.

listLayers()

List Available WFS Layers

geom_col_name() feature_cols() get_col_df()

Get Column Information

feature_hits()

The Number of Rows of the Promised Data

vicmap_options() check_chunk_limit()

options

check_geoserver()

Check Geoserver Response

data_citation() data_dictionary() get_metadata()

Layer Metadata