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|
pub mod spatial;
use anyhow::Result;
use glam::{Affine3A, DAffine3, DVec3};
use indicatif::ProgressIterator;
use log::{debug, info};
use osm_pbf_reader::{Blobs, data::primitives::Primitive};
use rayon::iter::{ParallelBridge, ParallelIterator};
use spatial::{SpatialTree, octtree::Octtree};
use std::{collections::BTreeMap, env::args, f64::consts::PI, fs::File, io::BufWriter};
use weareshared::{
graphics::GraphicsPart,
helper::AABB,
packets::Resource,
resources::{Prefab, RespackEntry, SpatialIndex},
respack::save_full_respack,
store::ResourceStore,
};
fn main() -> Result<()> {
env_logger::init_from_env("LOG");
let inpath = args().nth(1).unwrap();
let outpath = args().nth(2).unwrap();
info!("Indexing node positions...");
let node_positions = Blobs::from_path(&inpath)?
.progress_count(1_500)
.par_bridge()
.map(|e| {
let mut e = e.unwrap();
let e = e.decode().unwrap();
let mut npos = Vec::new();
for p in e.primitives() {
if let Primitive::Node(n) = p {
let lat = n.nano_lat as f64 / 1_000_000_000. / 180. * PI;
let lon = n.nano_lon as f64 / 1_000_000_000. / 180. * PI;
let pos = DVec3::new(lat.sin() * lon.cos(), lon.sin(), lat.cos() * lon.cos());
npos.push((map_nodeid(n.id), pos));
};
}
npos
})
.fold(
|| BTreeMap::new(),
|mut a, b| {
a.extend(b);
a
},
)
.reduce(
|| BTreeMap::new(),
|mut a, b| {
if !a.is_empty() && !b.is_empty() {
debug!("merge {} + {}", a.len(), b.len());
}
a.extend(b);
a
},
);
let mut tree = Octtree::new(DVec3::splat(1.5));
info!("Building tree over node positions...");
for (id, pos) in node_positions.into_iter().progress() {
tree.insert(pos, id);
}
info!("Done, depth={}", tree.depth());
let store = ResourceStore::new_memory();
info!("Exporting resources...");
let (_, root) = export_level(&tree, &store, &mut Vec::new())?;
let entry = Some(store.set(&RespackEntry {
c_spatial_index: vec![root],
..Default::default()
})?);
info!("Done, N={}", store.count()?);
let output = BufWriter::new(File::create(outpath)?);
save_full_respack(output, &store, entry)?;
Ok(())
}
fn export_level(
node: &Octtree,
store: &ResourceStore,
important_features: &mut Vec<DVec3>,
) -> Result<(AABB, Resource<SpatialIndex>)> {
let mut lod_features = Vec::new();
let child = node
.children
.iter()
.flat_map(|e| e.as_slice())
.flatten()
.flatten()
.map(|o| export_level(o, store, &mut lod_features))
.collect::<Result<Vec<_>>>()?;
let prefab = {
let points = if node.elems.is_empty() {
lod_features
} else {
node.elems.iter().map(|(e, _id)| *e).collect()
};
let local_origin = node.center;
let mut g = GraphicsPart::default();
use weareshared::graphics::GraphicsCommand::*;
g.push(StrokeWidth(0.001));
g.push(Stroke(5));
for (i, p) in points.into_iter().enumerate() {
g.push(Point((p - local_origin).as_vec3()));
if i % 8 == 0 {
important_features.push(p);
}
}
Some(store.set(&Prefab {
transform: Some(DAffine3::from_translation(local_origin)),
graphics: vec![(Affine3A::IDENTITY, store.set(&g)?)],
..Default::default()
})?)
};
Ok((
AABB {
min: (node.center - node.size / 2.).as_vec3(),
max: (node.center + node.size / 2.).as_vec3(),
},
store.set(&SpatialIndex {
level: None,
prefab,
child,
})?,
))
}
type NodeID = u64;
fn map_nodeid(id: i64) -> u64 {
// fn xorshift(mut x: u64) -> u64 {
// x ^= x << 13;
// x ^= x >> 7;
// x ^= x << 17;
// x
// }
// xorshift(xorshift(xorshift(id as u64)))
id as u64
}
|
