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At least a start to the inverse: when hovering on the route, show the position along the elevation line plot. #743

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This commit is contained in:
Dustin Carlino 2021-09-01 13:33:37 -07:00
parent ba6f9f4a14
commit e419ad4788
1 changed files with 28 additions and 1 deletions
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29
game/src/ungap/route.rs
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@ -1,6 +1,6 @@
use std::collections::HashSet;
use geom::{Circle, Distance, Duration, PolyLine};
use geom::{Circle, Distance, Duration, FindClosest, PolyLine};
use map_model::{Path, PathStep, NORMAL_LANE_THICKNESS};
use sim::{TripEndpoint, TripMode};
use widgetry::{
@ -96,6 +96,8 @@ struct RouteResults {
// It's tempting to glue together all of the paths. But since some waypoints might force the
// path to double back on itself, rendering the path as a single PolyLine would break.
paths: Vec<(Path, Option<PolyLine>)>,
// Match each polyline to the index in paths
closest_path_segment: FindClosest<usize>,
hover_on_line_plot: Option<(Distance, Drawable)>,
draw_route: Drawable,
@ -118,6 +120,7 @@ impl RouteResults {
let mut current_dist = Distance::ZERO;
let mut paths = Vec::new();
let mut closest_path_segment = FindClosest::new(map.get_bounds());
for pair in waypoints.windows(2) {
if let Some(path) = TripEndpoint::path_req(pair[0], pair[1], TripMode::Bike, map)
@ -155,6 +158,7 @@ impl RouteResults {
let maybe_pl = path.trace(map);
if let Some(ref pl) = maybe_pl {
batch.push(Color::CYAN, pl.make_polygons(5.0 * NORMAL_LANE_THICKNESS));
closest_path_segment.add(paths.len(), pl.points());
}
paths.push((path, maybe_pl));
}
@ -239,6 +243,7 @@ impl RouteResults {
draw_route,
panel,
paths,
closest_path_segment,
hover_on_line_plot: None,
}
}
@ -276,6 +281,28 @@ impl RouteResults {
(dist, batch.upload(ctx))
});
}
if let Some(pt) = ctx.canvas.get_cursor_in_map_space() {
if let Some((idx, pt)) = self
.closest_path_segment
.closest_pt(pt, 10.0 * NORMAL_LANE_THICKNESS)
{
// Find the total distance along the route
let mut dist = Distance::ZERO;
for (path, _) in &self.paths[0..idx] {
dist += path.total_length();
}
if let Some(ref pl) = self.paths[idx].1 {
if let Some((dist_here, _)) = pl.dist_along_of_point(pt) {
// TODO We know we're dist + dist_here along the entire route. The LinePlot
// would need to store the original Series to look up elevation for us. So
// I guess we can do it ourselves here, then send in the X and Y and make
// it map that to its own screen-space...
println!("We're {} along the route...", dist + dist_here);
}
}
}
}
}
fn draw(&self, g: &mut GfxCtx) {