PROJ
Rust bindings for PROJ, v6.2.x
Examples
Convert from NAD 83 US Survey Feet to NAD 83 Meters Using EPSG Codes
use Proj;
extern crate geo_types;
use Point;
let from = "EPSG:2230";
let to = "EPSG:26946";
let ft_to_m = new_known_crs.unwrap;
let result = ft_to_m
.convert
.unwrap;
assert_almost_eq;
assert_almost_eq;
Note that as of v5.0.0, PROJ uses the pipeline
operator, which allows an arbitrary number of steps in a conversion. The example below works as follows:
- define the operation as a
pipeline
operation - define
step
1 as aninv
erse transform, yielding geodetic coordinates - define
step
2 as a forward transform to projected coordinates, yielding metres.
Convert from NAD 83 US Survey Feet to NAD 83 Meters Using the pipeline
Operator
use Proj;
extern crate geo_types;
use Point;
let ft_to_m = new.unwrap;
// The Presidio, approximately
let result = ft_to_m.convert.unwrap;
assert_eq!;
assert_eq!;
Inverse Projection from Stereo70 to Geodetic
use Proj;
extern crate geo_types;
use Point;
// Carry out an inverse projection from Pulkovo 1942(58) / Stereo70 (EPSG 3844)
// into geodetic lon and lat coordinates (in radians)
let stereo70 = new.unwrap;
let rp = stereo70.project.unwrap;
assert_eq!;
Bulk Transformations
The Proj::convert_array()
method is available for bulk conversions. It accepts a mutable slice (or anything that can Deref
to a mutable slice) of Point<T: Float>
elements.
License
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.