ExtractCRSFromLocalPrj: LidarIndexR - Retrieve a projection file and read CRS...

In bmcgaughey1/LidarIndexR: Provides functions to build index files for lidar projects

LidarIndexR – Retrieve a projection file and read CRS information

Description

Retrieves only the projection file related to a shapefile (same name as fileName but with .prj extensions) and then reads CRS information from the projection file.

Usage

ExtractCRSFromLocalPrj(basePath, folderName, fileName, quiet = FALSE, ...)

Arguments

basePath	Path for a folder on a remote host. Trailing slash should not be included.
folderName	Folder name on the basePath containing the shapefile.
fileName	A string containing the name of a single file. The projection file with the same name (but extension of .prj) will be retrieved. The projection file is then read to provide CRS information.
quiet	Boolean to control display of status information. If TRUE, information is not displayed. Otherwise, status information is displayed.
...	Arguments passed to RCurl::getURL().

Value

String (invisible) containing a valid input value for st_crs().

Examples

## Not run: 
FetchAndExtractCRSFromPrj("ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/",
    "Staged/Hydrography/NHD/HU4/HighResolution/Shape/",
    "NHD_H_0101_HU4_Shape.prj",
    ".")

## End(Not run)

bmcgaughey1/LidarIndexR documentation built on April 14, 2025, 6:07 p.m.