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#[macro_use]
extern crate anyhow;
#[macro_use]
extern crate log;
use std::collections::BTreeMap;
use anyhow::Result;
use serde::{Deserialize, Serialize};
use abstutil::{prettyprint_usize, Timer};
use geom::{GPSBounds, LonLat, Polygon};
#[derive(Serialize, Deserialize)]
pub struct ExtraShapes {
pub shapes: Vec<ExtraShape>,
}
#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct ExtraShape {
pub points: Vec<LonLat>,
pub attributes: BTreeMap<String, String>,
}
pub fn load(
path: String,
gps_bounds: &GPSBounds,
require_all_pts_in_bounds: bool,
timer: &mut Timer,
) -> Result<ExtraShapes> {
timer.start(format!("read {}", path));
let bytes = abstio::slurp_file(&path)?;
let raw_string = std::str::from_utf8(&bytes)?;
let tree = roxmltree::Document::parse(raw_string)?;
timer.stop(format!("read {}", path));
let mut shapes = Vec::new();
let mut skipped_count = 0;
let mut kv = BTreeMap::new();
timer.start("scrape objects");
recurse(
tree.root(),
&mut shapes,
&mut skipped_count,
&mut kv,
gps_bounds,
require_all_pts_in_bounds,
)?;
timer.stop("scrape objects");
info!(
"Got {} shapes from {} and skipped {} shapes",
prettyprint_usize(shapes.len()),
path,
prettyprint_usize(skipped_count)
);
Ok(ExtraShapes { shapes })
}
fn recurse(
node: roxmltree::Node,
shapes: &mut Vec<ExtraShape>,
skipped_count: &mut usize,
kv: &mut BTreeMap<String, String>,
gps_bounds: &GPSBounds,
require_all_pts_in_bounds: bool,
) -> Result<()> {
for child in node.children() {
recurse(
child,
shapes,
skipped_count,
kv,
gps_bounds,
require_all_pts_in_bounds,
)?;
}
if node.tag_name().name() == "SimpleData" {
let key = node.attribute("name").unwrap().to_string();
let value = node
.text()
.map(|x| x.to_string())
.unwrap_or_else(String::new);
kv.insert(key, value);
} else if node.tag_name().name() == "coordinates" {
let mut any_oob = false;
let mut any_ok = false;
let mut pts: Vec<LonLat> = Vec::new();
if let Some(txt) = node.text() {
for pair in txt.trim().split(' ') {
if let Some(pt) = parse_pt(pair) {
pts.push(pt);
if gps_bounds.contains(pt) {
any_ok = true;
} else {
any_oob = true;
}
} else {
bail!("Malformed coordinates: {}", pair);
}
}
}
if any_ok && (!any_oob || !require_all_pts_in_bounds) {
let attributes = std::mem::take(kv);
shapes.push(ExtraShape {
points: pts,
attributes,
});
} else {
*skipped_count += 1;
}
}
Ok(())
}
fn parse_pt(input: &str) -> Option<LonLat> {
let coords: Vec<&str> = input.split(',').collect();
if coords.len() < 2 {
return None;
}
match (coords[0].parse::<f64>(), coords[1].parse::<f64>()) {
(Ok(lon), Ok(lat)) => Some(LonLat::new(lon, lat)),
_ => None,
}
}
impl ExtraShapes {
pub fn load_csv(
path: String,
gps_bounds: &GPSBounds,
timer: &mut Timer,
) -> Result<ExtraShapes> {
timer.start(format!("read {}", path));
let mut shapes = Vec::new();
for rec in csv::Reader::from_path(&path)?.deserialize() {
let mut rec: BTreeMap<String, String> = rec?;
match (
rec.remove("Longitude"),
rec.remove("Latitude"),
rec.remove("geometry"),
) {
(Some(lon), Some(lat), _) => {
if let (Ok(lon), Ok(lat)) = (lon.parse::<f64>(), lat.parse::<f64>()) {
let pt = LonLat::new(lon, lat);
if gps_bounds.contains(pt) {
shapes.push(ExtraShape {
points: vec![pt],
attributes: rec,
});
}
}
}
(None, None, Some(raw)) => {
if let Some(points) = LonLat::parse_wkt_linestring(&raw) {
if gps_bounds.try_convert(&points).is_some() {
shapes.push(ExtraShape {
points,
attributes: rec,
});
}
}
}
_ => {
timer.stop(format!("read {}", path));
bail!(
"{} doesn't have a column called Longitude, Latitude, or geometry",
path
)
}
}
}
timer.stop(format!("read {}", path));
Ok(ExtraShapes { shapes })
}
}
impl ExtraShapes {
pub fn load_geojson_no_clipping(
path: String,
gps_bounds: &GPSBounds,
require_in_bounds: bool,
) -> Result<ExtraShapes> {
let mut shapes = Vec::new();
for (polygon, tags) in
Polygon::from_geojson_bytes(&abstio::slurp_file(path)?, gps_bounds, require_in_bounds)?
{
shapes.push(ExtraShape {
points: gps_bounds.convert_back(polygon.points()),
attributes: tags.into_inner(),
});
}
Ok(ExtraShapes { shapes })
}
}