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Code Issues Projects Releases Wiki Activity

just focus on one intersection...

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This commit is contained in:
Dustin Carlino 2019-01-10 10:06:32 -08:00
parent cb47c4b13d
commit 884c47cc6b
4 changed files with 74 additions and 53 deletions
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3
editor/src/render/intersection.rs
View File

@ -67,7 +67,8 @@ impl Renderable for DrawIntersection {
if opts.debug_mode {
// First and last point are repeated
for (idx, pt) in ctx.map.get_i(self.id).polygon.iter().skip(1).enumerate() {
ctx.canvas.draw_text_at(g, Text::from_line(format!("{}", idx + 1)), *pt);
ctx.canvas
.draw_text_at(g, Text::from_line(format!("{}", idx + 1)), *pt);
}
} else if ctx.canvas.cam_zoom >= MIN_ZOOM_FOR_MARKINGS {
for corner in &self.sidewalk_corners {

4
map_model/src/lane.rs
View File

@ -97,7 +97,9 @@ impl Lane {
}
pub fn dist_along_of_point(&self, pt: Pt2D) -> Option<si::Meter<f64>> {
self.lane_center_pts.dist_along_of_point(pt).map(|(dist, _)| dist)
self.lane_center_pts
.dist_along_of_point(pt)
.map(|(dist, _)| dist)
}
pub fn length(&self) -> si::Meter<f64> {

2
map_model/src/make/half_map.rs
View File

@ -146,7 +146,7 @@ pub fn make_half_map(
panic!("{:?} is orphaned!", i);
}
i.polygon = make::intersections::initial_intersection_polygon(i, &m.roads);
i.polygon = make::intersections::initial_intersection_polygon(i, &mut m.roads);
}
/*timer.start_iter("trim lanes at each intersection", m.intersections.len());

118
map_model/src/make/intersections.rs
View File

@ -11,7 +11,7 @@ const DEGENERATE_INTERSECTION_HALF_LENGTH: si::Meter<f64> = si::Meter {
// The polygon should exist entirely within the thick bands around all original roads -- it just
// carves up part of that space, doesn't reach past it.
pub fn initial_intersection_polygon(i: &Intersection, roads: &Vec<Road>) -> Vec<Pt2D> {
pub fn initial_intersection_polygon(i: &Intersection, roads: &mut Vec<Road>) -> Vec<Pt2D> {
// Turn all of the incident roads into two PolyLines (the "forwards" and "backwards" borders of
// the road, if the roads were oriented to both be incoming to the intersection), both ending
// at the intersection (which may be different points for merged intersections!), and the angle
@ -95,57 +95,57 @@ pub fn initial_intersection_polygon(i: &Intersection, roads: &Vec<Road>) -> Vec<
if let Some(pts) = make_new_polygon(roads, i.id, &lines) {
endpoints.extend(pts);
} else {
// Look at adjacent pairs of these polylines...
for idx1 in 0..lines.len() as isize {
let idx2 = idx1 + 1;
// Look at adjacent pairs of these polylines...
for idx1 in 0..lines.len() as isize {
let idx2 = idx1 + 1;
let (id1, _, _, pl1) = wraparound_get(&lines, idx1);
let (id2, _, pl2, _) = wraparound_get(&lines, idx2);
let (id1, _, _, pl1) = wraparound_get(&lines, idx1);
let (id2, _, pl2, _) = wraparound_get(&lines, idx2);
// If the two lines are too close in angle, they'll either not hit or even if they do, it
// won't be right.
let angle_diff = (pl1.last_line().angle().opposite().normalized_degrees()
- pl2.last_line().angle().normalized_degrees())
.abs();
// If the two lines are too close in angle, they'll either not hit or even if they do, it
// won't be right.
let angle_diff = (pl1.last_line().angle().opposite().normalized_degrees()
- pl2.last_line().angle().normalized_degrees())
.abs();
// TODO A tuning challenge. :)
if angle_diff > 15.0 {
// The easy case!
if let Some(hit) = pl1.intersection(&pl2) {
// TODO A tuning challenge. :)
if angle_diff > 15.0 {
// The easy case!
if let Some(hit) = pl1.intersection(&pl2) {
endpoints.push(hit);
continue;
}
}
let mut ok = true;
// Use the next adjacent road, doing line to line segment intersection instead.
let inf_line1 = wraparound_get(&lines, idx1 - 1).3.last_line();
if let Some(hit) = pl1.intersection_infinite_line(inf_line1) {
endpoints.push(hit);
continue;
} else {
endpoints.push(pl1.last_pt());
ok = false;
}
let inf_line2 = wraparound_get(&lines, idx2 + 1).2.last_line();
if let Some(hit) = pl2.intersection_infinite_line(inf_line2) {
endpoints.push(hit);
} else {
endpoints.push(pl2.last_pt());
ok = false;
}
if !ok {
warn!(
"No hit btwn {} and {}, for {} with {} incident roads",
id1,
id2,
i.id,
lines.len()
);
}
}
let mut ok = true;
// Use the next adjacent road, doing line to line segment intersection instead.
let inf_line1 = wraparound_get(&lines, idx1 - 1).3.last_line();
if let Some(hit) = pl1.intersection_infinite_line(inf_line1) {
endpoints.push(hit);
} else {
endpoints.push(pl1.last_pt());
ok = false;
}
let inf_line2 = wraparound_get(&lines, idx2 + 1).2.last_line();
if let Some(hit) = pl2.intersection_infinite_line(inf_line2) {
endpoints.push(hit);
} else {
endpoints.push(pl2.last_pt());
ok = false;
}
if !ok {
warn!(
"No hit btwn {} and {}, for {} with {} incident roads",
id1,
id2,
i.id,
lines.len()
);
}
}
}
}
@ -154,7 +154,15 @@ pub fn initial_intersection_polygon(i: &Intersection, roads: &Vec<Road>) -> Vec<
endpoints
}
fn make_new_polygon(roads: &Vec<Road>, i: IntersectionID, lines: &Vec<(RoadID, Angle, PolyLine, PolyLine)>) -> Option<Vec<Pt2D>> {
fn make_new_polygon(
roads: &mut Vec<Road>,
i: IntersectionID,
lines: &Vec<(RoadID, Angle, PolyLine, PolyLine)>,
) -> Option<Vec<Pt2D>> {
if i != IntersectionID(252) {
return None;
}
let mut endpoints: Vec<Pt2D> = Vec::new();
// Find the two corners of each road
for idx in 0..lines.len() as isize {
@ -164,7 +172,11 @@ fn make_new_polygon(roads: &Vec<Road>, i: IntersectionID, lines: &Vec<(RoadID, A
// road_center ends at the intersection.
// TODO This is redoing some work. :\
let road_center = if roads[id.0].dst_i == i { roads[id.0].center_pts.clone() } else { roads[id.0].center_pts.reversed() };
let road_center = if roads[id.0].dst_i == i {
roads[id.0].center_pts.clone()
} else {
roads[id.0].center_pts.reversed()
};
let new_center1 = {
let hit = fwd_pl.intersection(adj_fwd_pl)?;
@ -194,17 +206,23 @@ fn make_new_polygon(roads: &Vec<Road>, i: IntersectionID, lines: &Vec<(RoadID, A
};
// TODO This is redoing LOTS of work
let r = &roads[id.0];
let r = &mut roads[id.0];
let fwd_width = LANE_THICKNESS * (r.children_forwards.len() as f64);
let back_width = LANE_THICKNESS * (r.children_backwards.len() as f64);
let (width_normal, width_reverse) = if r.src_i == i {
//r.center_pts = shorter_center.reversed();
(back_width, fwd_width)
} else {
//r.center_pts = shorter_center.clone();
(fwd_width, back_width)
};
let pl_normal = shorter_center.shift(width_normal).unwrap();
let pl_reverse = shorter_center.reversed().shift(width_reverse).unwrap().reversed();
let pl_reverse = shorter_center
.reversed()
.shift(width_reverse)
.unwrap()
.reversed();
endpoints.push(pl_normal.last_pt());
endpoints.push(pl_reverse.last_pt());