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ED_LRR
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Update main.rs and process.py 

process.py:
- Add hint for file download when input files are missing

main.rs
- Add multi-hop-routing
- Add searching for source and destination by name
This commit is contained in:
Daniel S. 2019-06-09 04:08:31 +02:00
parent 662a0be0e3
commit 8e8587a335
3 changed files with 123 additions and 51 deletions
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3
download.sh
View File

@ -1,3 +0,0 @@
#!/usr/bin/bash
rm systemsWithCoordinates.json bodies.json *.aria2
wget https://www.edsm.net/dump/systemsWithCoordinates.json https://www.edsm.net/dump/bodies.json

10
process.py → dumps/process.py
View File

@ -7,6 +7,7 @@ import sys
import csv
import sqlite3
import pandas as pd
from urllib.parse import urljoin
def is_scoopable(entry):
@ -89,8 +90,15 @@ def process_file(fn, show_progbar=False):
yield line
if not (
os.path.isfile("bodies.json") and os.path.isfile("systemsWithCoordinates.json")
):
exit(
"Please download bodies.json and systemsWithCoordinates.json from https://www.edsm.net/en/nightly-dumps/"
)
if not os.path.isfile("stars.jl"):
print("Filtering for Neutron Stars")
print("Filtering for Stars")
with open("stars.jl", "w") as neut:
for body in process_file("bodies.json", True):
T = body.get("type") or ""

161
src/main.rs
View File

@ -2,11 +2,8 @@ extern crate csv;
extern crate serde;
#[macro_use]
extern crate serde_derive;
extern crate fnv;
extern crate humantime;
// extern crate rayon;
// use rayon::prelude::*;
use fnv::{FnvHashMap, FnvHashSet};
use humantime::format_duration;
use rstar::{PointDistance, RTree, RTreeObject, AABB};
@ -25,7 +22,7 @@ struct Record {
y: f32,
z: f32,
}
#[derive(Debug)]
#[derive(Debug, Clone)]
struct System {
id: i64,
star_type: String,
@ -33,7 +30,7 @@ struct System {
mult: f32,
}
#[derive(Debug)]
#[derive(Debug, Clone, Copy)]
struct Point {
id: i64,
x: f32,
@ -41,6 +38,14 @@ struct Point {
z: f32,
}
fn dist(p1: &[f32; 3], p2: &[f32; 3]) -> f32 {
let dx = p1[0] - p2[0];
let dy = p1[1] - p2[1];
let dz = p1[2] - p2[2];
return (dx * dx + dy * dy + dz * dz).sqrt();
}
impl Point {
pub fn dist2(&self, p: &[f32; 3]) -> f32 {
let dx = self.x - p[0];
@ -87,12 +92,11 @@ impl PointDistance for Point {
struct Router {
tree: RTree<Point>,
systems: FnvHashMap<i64, System>,
range: f32,
scoopable: FnvHashSet<i64>,
}
impl Router {
pub fn new(path: &str, range: f32) -> Self {
pub fn new(path: &str) -> Self {
let mut scoopable = FnvHashSet::default();
let mut systems: FnvHashMap<i64, System> = FnvHashMap::default();
let mut reader = csv::ReaderBuilder::new()
@ -134,7 +138,6 @@ impl Router {
return Self {
tree: RTree::<Point>::bulk_load(points),
systems,
range,
scoopable,
};
}
@ -175,17 +178,88 @@ impl Router {
};
return 1.0;
}
fn neighbours(&self, sys: &Point) -> impl Iterator<Item = &Point> {
return self.points_in_sphere(&[sys.x, sys.y, sys.z], self.mult(sys.id) * self.range);
fn neighbours(&self, sys: &Point, r: f32) -> impl Iterator<Item = &Point> {
return self.points_in_sphere(&[sys.x, sys.y, sys.z], self.mult(sys.id) * r);
}
fn valid(&self, sys: &Point) -> bool {
return self.scoopable.contains(&sys.id);
}
pub fn route(&mut self, src: &[f32; 3], dst: &[f32; 3]) -> Option<Vec<(&System, &Point)>> {
pub fn name_multiroute(&self, waypoints: &[&str], range: f32) -> Vec<(&System, &Point)> {
let mut coords = Vec::new();
for p in waypoints {
let p = self.name_to_point(p);
let s = [p.x, p.y, p.z];
coords.push(s);
}
return self.multiroute(coords.as_slice(), range);
}
pub fn multiroute(&self, waypoints: &[[f32; 3]], range: f32) -> Vec<(&System, &Point)> {
let mut route = Vec::new();
for pair in waypoints.windows(2) {
match pair {
&[src, dst] => {
let block = self.route(&src, &dst, range);
if route.is_empty() {
route.extend(block.iter());
} else {
route.extend(block.iter().skip(1));
}
}
_ => panic!("Invalid routing parameters!"),
}
}
return route;
}
fn sys_to_point(&self, id: i64) -> Option<&Point> {
for p in &self.tree {
if p.id == id {
return Some(p);
}
}
return None;
}
fn name_to_point(&self, name: &str) -> &Point {
for sys in self.systems.values() {
if sys.name == name {
return self.sys_to_point(sys.id).unwrap();
}
}
eprintln!("Sytem not found: {}", name);
std::process::exit(1);
}
pub fn route_by_name(&self, src: &str, dst: &str, range: f32) -> Vec<(&System, &Point)> {
let start_sys = self.name_to_point(src);
let goal_sys = self.name_to_point(dst);
return self.route(
&[start_sys.x, start_sys.y, start_sys.z],
&[goal_sys.x, goal_sys.y, goal_sys.z],
range,
);
}
pub fn route(&self, src: &[f32; 3], dst: &[f32; 3], range: f32) -> Vec<(&System, &Point)> {
let start_sys = self.closest(src);
let goal_sys = self.closest(dst);
{
let d = dist(src, dst);
let start_sys_name = self.systems.get(&start_sys.id).unwrap().name.clone();
let goal_sys_name = self.systems.get(&goal_sys.id).unwrap().name.clone();
println!(
"Computing route from {} to {}...",
start_sys_name, goal_sys_name
);
println!(
"Jump Range: {} Ly, Distance: {} Ly, Theoretical Jumps: {}",
range,
d,
d / range
);
}
let total = self.tree.size() as f32;
let mut prev = FnvHashMap::default();
let mut seen = FnvHashSet::default();
@ -197,42 +271,41 @@ impl Router {
queue.push_front((0, &start_sys));
seen.insert(start_sys.id);
while !queue.is_empty() {
print!(
"[{}] Depth: {}, Queue: {}, Seen: {} ({:.02}%) \r",
format_duration(t_start.elapsed()),
depth,
queue.len(),
seen.len(),
((seen.len() * 100) as f32) / total
);
std::io::stdout().flush().unwrap();
while let Some((d, sys)) = queue.pop_front() {
if d != depth {
depth = d;
print!(
"\r[{}] Depth: {}, Queue: {}, Seen: {} ({:.2}%) ",
format_duration(t_start.elapsed()),
d,
queue.len(),
prev.len(),
((prev.len() as f32) / total) * 100.0
);
std::io::stdout().flush().unwrap();
}
if sys.id == goal_sys.id {
found = true;
break;
}
let nbs = self
.neighbours(&sys)
.filter(|&nb| (self.valid(nb) || (nb.id == goal_sys.id)));
for nb in nbs {
if seen.insert(nb.id) {
prev.insert(nb.id, sys.id);
queue_next.push_back((d + 1, nb));
}
}
queue_next.extend(
self.neighbours(&sys, range)
.filter(|&nb| (self.valid(nb) || (nb.id == goal_sys.id)))
.filter(|&nb| seen.insert(nb.id))
.map(|nb| {
prev.insert(nb.id, sys.id);
return (d + 1, nb);
}),
);
}
std::mem::swap(&mut queue, &mut queue_next);
depth += 1;
}
println!();
if !found {
return None;
return Vec::new();
}
let points = self.preload_points();
let mut v: Vec<(&System, &Point)> = Vec::new();
let mut prev_sys_id = goal_sys.id;
let prev = prev;
loop {
if let Some(sys) = self.systems.get(&prev_sys_id) {
v.push((sys, points[&sys.id]));
@ -247,36 +320,30 @@ impl Router {
}
}
v.reverse();
return Some(v);
return v;
}
}
fn main() {
let path = r#"D:\devel\files\python\EDSM\stars.csv"#;
let t_load = Instant::now();
let mut router: Router = Router::new(path, 48.0);
let router: Router = Router::new(path);
println!("Done in {}!", format_duration(t_load.elapsed()));
let t_route = Instant::now();
let route = router.route(
&[-65.21875, 7.75, -111.03125], // Ix
&[-1111.5625, -134.21875, 65269.75], // Beagle Point
// &[-7095.375, 401.25, 2396.8125], // V1357 Cygni,
); // Ix -> BP 537
let route = match route {
Some(r) => r,
None => Vec::new(),
};
let route = router.name_multiroute(&["Ix", "Colonia", "Sol"], 48.0);
println!(
"Done in {} ({} Jumps)!\n",
format_duration(t_route.elapsed()),
route.len()
route.len(),
);
let mut total: f32 = 0.0;
for ((sys1, p1), (_, p2)) in route.iter().zip(route.iter().skip(1)) {
let dist = p1.distp(p2);
total += dist;
println!("{} [{}]: {:.2} Ly", sys1.name, sys1.star_type, dist);
println!(
"{} [{}] ({},{},{}): {:.2} Ly",
sys1.name, sys1.star_type, p1.x, p1.y, p1.z, dist
);
}
let sys = route.iter().last().unwrap().0;
println!("{} [{}]: {:.2} Ly\n", sys.name, sys.star_type, 0.0);