transform_xy {gdalraster} | R Documentation |
Transform geospatial x/y coordinates
Description
transform_xy()
transforms geospatial x/y coordinates to a new projection.
Usage
transform_xy(pts, srs_from, srs_to)
Arguments
pts |
A two-column data frame or numeric matrix containing geospatial x/y coordinates. |
srs_from |
Character string in OGC WKT format specifying the
spatial reference system for |
srs_to |
Character string in OGC WKT format specifying the output spatial reference system. |
Value
Numeric array of geospatial x/y coordinates in the projection
specified by srs_to
.
See Also
epsg_to_wkt()
, srs_to_wkt()
, inv_project()
Examples
pt_file <- system.file("extdata/storml_pts.csv", package="gdalraster")
pts <- read.csv(pt_file)
print(pts)
## id, x, y in NAD83 / UTM zone 12N
## transform to NAD83 / CONUS Albers
transform_xy(pts = pts[,-1],
srs_from = epsg_to_wkt(26912),
srs_to = epsg_to_wkt(5070))
[Package gdalraster version 1.11.1 Index]