rvertnet (version 0.8.4)

spatialsearch: Find records within some distance of a point given latitude and longitude.

Description

Searches by decimal latitude and longitude to return any occurrence record within the input distance (radius) of the input point.

Usage

spatialsearch(
  lat,
  long,
  radius,
  limit = 1000,
  compact = TRUE,
  messages = TRUE,
  ...
)

Value

A list with two slots:

• meta: a named list of metadata for the search results

• data: a data frame of search results, columns vary

Arguments

lat

(numeric) Latitude of the central point, in decimal degrees required.

long

(numeric) Longitude of the central point, in decimal degrees required.

radius

(numeric) Radius to search, in meters. There is no default value for this parameter. required.

limit

(integer) Limit on the number of records returned. If >1000 results, we use a cursor internally, but you should still get up to the results you asked for. See also bigsearch() to get larger result sets in a text file via email.

compact

(logical) Return a compact data frame. default: TRUE

messages

(logical) Print progress and information messages. Default: TRUE

...

Curl arguments passed on to crul::HttpClient

Details

spatialsearch() finds all records of any taxa having decimal lat/long coordinates within a given radius (in meters) of your coordinates.

References

https://github.com/VertNet/webapp/wiki/The-API-search-function

Examples

if (FALSE) {
res <- spatialsearch(lat = 33.529, long = -105.694, radius = 2000,
  limit = 10)

# Pass in curl options for curl debugging
out <- spatialsearch(lat = 33.529, long = -105.694, radius = 2000,
  limit = 10, verbose = TRUE)
}