rust-wkb

此crate提供将rust-geo几何类型转换为和从Well Known Binary格式（即ISO 19125）的功能

示例

use geo_types::*;
use wkb::*;

let p: Geometry<f64> = Geometry::Point(Point::new(2., 4.));
let res = geom_to_wkb(&p);
assert_eq!(res, vec![1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 16, 64]);

您还可以从std::io::Read中“读取”一个几何形状

use geo_types::*;
use wkb::*;

let bytes: Vec<u8> = vec![1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 16, 64];
let p: Geometry<f64> = wkb_to_geom(&mut bytes.as_slice()).unwrap();
assert_eq!(p, Geometry::Point(Point::new(2., 4.)));

计划添加适当的*Ext特质。

lib.rs:

此crate提供将rust-geo几何类型转换为和从Well Known Binary格式的功能。

示例

use geo_types::*;
use wkb::*;

let p: Geometry<f64> = Geometry::Point(Point::new(2., 4.));
let res = geom_to_wkb(&p).unwrap();
assert_eq!(res, vec![1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 16, 64]);

您还可以从std::io::Read中“读取”一个几何形状

use std::io::prelude::*;
use std::io::Cursor;
use geo_types::*;
use wkb::*;

let bytes: Vec<u8> = vec![1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 16, 64];
let mut bytes_cursor = Cursor::new(bytes);
let p = bytes_cursor.read_wkb().unwrap();
assert_eq!(p, Geometry::Point(Point::new(2., 4.)));

.write_wkb(Geometry<Into<f64>>)的作用类似

let mut bytes: Vec<u8> = vec![];
bytes.write_wkb(&Geometry::Point(Point::new(2_f64, 4.))).unwrap();
assert_eq!(bytes, vec![1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 16, 64]);