thermokarst/gpx-web-utils
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maint: merge individual tracks

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This commit is contained in:
Matthew Ryan Dillon 2021-11-21 13:55:59 -07:00
parent cff09659f9
commit abadb2ec7d
2 changed files with 23 additions and 6 deletions
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8
README.md
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@ -1,3 +1,11 @@
# gpx-web-utils # gpx-web-utils
![ci](https://github.com/thermokarst/gpx-web-utils/workflows/ci/badge.svg) ![ci](https://github.com/thermokarst/gpx-web-utils/workflows/ci/badge.svg)
## quickstart
1. install [wasm-pack](https://rustwasm.github.io/wasm-pack/installer/)
2. `wasm-pack build`
3. `cd www`
4. `npm install`
5. `npm run start`

21
src/utils.rs
View file

@ -9,15 +9,24 @@ pub fn translate_js_to_rust(files: js_sys::Array) -> Vec<String> {
} }
pub fn join_gpx_files(files: Vec<String>) -> gpx::Gpx { pub fn join_gpx_files(files: Vec<String>) -> gpx::Gpx {
let mut merged: gpx::Gpx = Default::default(); let mut merged_gpx: gpx::Gpx = Default::default();
let mut merged_track: gpx::Track = gpx::Track::new();
for file in files.iter() { for file in files.iter() {
let buffer = std::io::BufReader::new(file.as_bytes()); let buffer = std::io::BufReader::new(file.as_bytes());
let mut parsed_gpx: gpx::Gpx = gpx::read(buffer).expect("invalid gpx"); let mut parsed_gpx: gpx::Gpx = gpx::read(buffer).expect("invalid gpx");
merged.tracks.append(&mut parsed_gpx.tracks); // consolidate all track segements into one single track.
merged.waypoints.append(&mut parsed_gpx.waypoints); for track in parsed_gpx.tracks {
for segment in track.segments {
merged_track.segments.push(segment);
} }
}
merged_gpx.waypoints.append(&mut parsed_gpx.waypoints);
}
merged_gpx.tracks.push(merged_track);
let link = gpx::Link { let link = gpx::Link {
href: String::from("https://gpx.thermokar.st"), href: String::from("https://gpx.thermokar.st"),
@ -32,10 +41,10 @@ pub fn join_gpx_files(files: Vec<String>) -> gpx::Gpx {
author: Some(author), author: Some(author),
..Default::default() ..Default::default()
}; };
merged.metadata = Some(metadata); merged_gpx.metadata = Some(metadata);
merged.version = gpx::GpxVersion::Gpx11; merged_gpx.version = gpx::GpxVersion::Gpx11;
merged merged_gpx
} }
pub fn write_gpx_to_buffer(gpx: gpx::Gpx) -> Vec<u8> { pub fn write_gpx_to_buffer(gpx: gpx::Gpx) -> Vec<u8> {