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BEGIN;
BEGIN
SET client_min_messages TO NOTICE;
SET
/* -- q1 */
SELECT *
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT geom FROM pointsOfInterest WHERE pid = 5),
0.5);
edge_id | fraction | side | distance | geom | edge
---------+----------+------+----------+------+------
5 | 0.8 | l | | |
(1 row)
/* -- q2 */
SELECT edge_id, round(fraction::numeric, 2) AS fraction, side, ST_AsText(geom) AS original_point
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT array_agg(geom) FROM pointsOfInterest),
0.5);
edge_id | fraction | side | original_point
---------+----------+------+----------------
1 | 0.40 | l | POINT(1.8 0.4)
6 | 0.30 | r | POINT(0.3 1.8)
12 | 0.60 | l | POINT(2.6 3.2)
15 | 0.40 | r | POINT(4.2 2.4)
5 | 0.80 | l | POINT(2.9 1.8)
4 | 0.70 | r | POINT(2.2 1.7)
(6 rows)
/* -- q3 */
/* -- o1 */
SELECT *
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT geom FROM pointsOfInterest WHERE pid = 5),
0.5, cap => 2);
edge_id | fraction | side | distance | geom | edge
---------+--------------------+------+---------------------+------+------
5 | 0.8 | l | 0.10000000000000009 | |
8 | 0.8999999999999999 | r | 0.19999999999999996 | |
(2 rows)
/* -- o2 */
SELECT edge_id, round(fraction::numeric, 2) AS fraction, side, round(distance::numeric, 3) AS distance,
ST_AsText(geom) AS new_point,
ST_AsText(edge) AS original_to_new_point
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT geom FROM pointsOfInterest WHERE pid = 5),
0.5, partial => false);
edge_id | fraction | side | distance | new_point | original_to_new_point
---------+----------+------+----------+--------------+---------------------------
5 | 0.80 | l | 0.100 | POINT(3 1.8) | LINESTRING(2.9 1.8,3 1.8)
(1 row)
/* -- o3 */
SELECT edge_id, round(fraction::numeric, 2) AS fraction, side, round(distance::numeric, 3) AS distance,
ST_AsText(geom) AS new_point,
ST_AsText(edge) AS original_to_new_point
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT geom FROM pointsOfInterest WHERE pid = 5),
0.5, cap => 2, partial => false);
edge_id | fraction | side | distance | new_point | original_to_new_point
---------+----------+------+----------+--------------+---------------------------
5 | 0.80 | l | 0.100 | POINT(3 1.8) | LINESTRING(2.9 1.8,3 1.8)
8 | 0.90 | r | 0.200 | POINT(2.9 2) | LINESTRING(2.9 1.8,2.9 2)
(2 rows)
/* -- o4 */
SELECT * FROM pgr_withPoints(
$e$ SELECT * FROM edges $e$,
$p$ SELECT edge_id, round(fraction::numeric, 2) AS fraction, side
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT geom FROM pointsOfInterest WHERE pid = 5),
0.5, cap => 2)
$p$,
1, ARRAY[-1, -2]);
seq | path_seq | end_pid | node | edge | cost | agg_cost
-----+----------+---------+------+------+------+----------
1 | 1 | -2 | 1 | 6 | 1 | 0
2 | 2 | -2 | 3 | 7 | 1 | 1
3 | 3 | -2 | 7 | 8 | 0.9 | 2
4 | 4 | -2 | -2 | -1 | 0 | 2.9
5 | 1 | -1 | 1 | 6 | 1 | 0
6 | 2 | -1 | 3 | 7 | 1 | 1
7 | 3 | -1 | 7 | 8 | 1 | 2
8 | 4 | -1 | 11 | 9 | 1 | 3
9 | 5 | -1 | 16 | 16 | 1 | 4
10 | 6 | -1 | 15 | 3 | 1 | 5
11 | 7 | -1 | 10 | 5 | 0.8 | 6
12 | 8 | -1 | -1 | -1 | 0 | 6.8
(12 rows)
/* -- o5 */
SELECT *
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT geom FROM pointsOfInterest WHERE pid = 5),
0.5,
dryrun => true);
NOTICE:
WITH
edges_sql AS (SELECT id, geom FROM edges),
point_sql AS (SELECT '01010000003333333333330740CDCCCCCCCCCCFC3F'::geometry AS point)
SELECT
id::BIGINT AS edge_id,
ST_LineLocatePoint(geom, point) AS fraction,
CASE WHEN ST_Intersects(ST_Buffer(geom, 0.5, 'side=right endcap=flat'), point)
THEN 'r'
ELSE 'l' END::CHAR AS side,
geom <-> point AS distance,
ST_ClosestPoint(geom, point) AS new_point,
ST_MakeLine(point, ST_ClosestPoint(geom, point)) AS new_line
FROM edges_sql, point_sql
WHERE ST_DWithin(geom, point, 0.5)
ORDER BY geom <-> point LIMIT 1
edge_id | fraction | side | distance | geom | edge
---------+----------+------+----------+------+------
(0 rows)
/* -- o6 */
/* -- m1 */
SELECT edge_id, round(fraction::numeric, 2) AS fraction, side, round(distance::numeric, 3) AS distance,
ST_AsText(geom) AS geom_is_original, edge
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT array_agg(geom) FROM pointsOfInterest),
0.5, cap => 2);
edge_id | fraction | side | distance | geom_is_original | edge
---------+----------+------+----------+------------------+------
1 | 0.40 | l | 0.200 | POINT(1.8 0.4) |
6 | 0.30 | r | 0.200 | POINT(0.3 1.8) |
12 | 0.60 | l | 0.200 | POINT(2.6 3.2) |
11 | 1.00 | l | 0.447 | POINT(2.6 3.2) |
15 | 0.40 | r | 0.200 | POINT(4.2 2.4) |
9 | 1.00 | l | 0.447 | POINT(4.2 2.4) |
5 | 0.80 | l | 0.100 | POINT(2.9 1.8) |
8 | 0.90 | r | 0.200 | POINT(2.9 1.8) |
4 | 0.70 | r | 0.200 | POINT(2.2 1.7) |
8 | 0.20 | r | 0.300 | POINT(2.2 1.7) |
(10 rows)
/* -- m2 */
SELECT edge_id, round(fraction::numeric, 2) AS fraction, side, round(distance::numeric, 3) AS distance,
ST_AsText(geom) AS geom_is_original,
ST_AsText(edge) AS original_to_new_point
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT array_agg(geom) FROM pointsOfInterest),
0.5, partial => false);
edge_id | fraction | side | distance | geom_is_original | original_to_new_point
---------+----------+------+----------+------------------+---------------------------
1 | 0.40 | l | 0.200 | POINT(1.8 0.4) | LINESTRING(1.8 0.4,2 0.4)
6 | 0.30 | r | 0.200 | POINT(0.3 1.8) | LINESTRING(0.3 1.8,0.3 2)
12 | 0.60 | l | 0.200 | POINT(2.6 3.2) | LINESTRING(2.6 3.2,2.6 3)
15 | 0.40 | r | 0.200 | POINT(4.2 2.4) | LINESTRING(4.2 2.4,4 2.4)
5 | 0.80 | l | 0.100 | POINT(2.9 1.8) | LINESTRING(2.9 1.8,3 1.8)
4 | 0.70 | r | 0.200 | POINT(2.2 1.7) | LINESTRING(2.2 1.7,2 1.7)
(6 rows)
/* -- m3 */
SELECT edge_id, round(fraction::numeric, 2) AS fraction, side, round(distance::numeric, 3) AS distance,
ST_AsText(geom) AS geom_is_original,
ST_AsText(edge) AS original_to_new_point
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT array_agg(geom) FROM pointsOfInterest),
0.5, cap => 2, partial => false);
edge_id | fraction | side | distance | geom_is_original | original_to_new_point
---------+----------+------+----------+------------------+---------------------------
1 | 0.40 | l | 0.200 | POINT(1.8 0.4) | LINESTRING(1.8 0.4,2 0.4)
6 | 0.30 | r | 0.200 | POINT(0.3 1.8) | LINESTRING(0.3 1.8,0.3 2)
12 | 0.60 | l | 0.200 | POINT(2.6 3.2) | LINESTRING(2.6 3.2,2.6 3)
11 | 1.00 | l | 0.447 | POINT(2.6 3.2) | LINESTRING(2.6 3.2,3 3)
15 | 0.40 | r | 0.200 | POINT(4.2 2.4) | LINESTRING(4.2 2.4,4 2.4)
9 | 1.00 | l | 0.447 | POINT(4.2 2.4) | LINESTRING(4.2 2.4,4 2)
5 | 0.80 | l | 0.100 | POINT(2.9 1.8) | LINESTRING(2.9 1.8,3 1.8)
8 | 0.90 | r | 0.200 | POINT(2.9 1.8) | LINESTRING(2.9 1.8,2.9 2)
4 | 0.70 | r | 0.200 | POINT(2.2 1.7) | LINESTRING(2.2 1.7,2 1.7)
8 | 0.20 | r | 0.300 | POINT(2.2 1.7) | LINESTRING(2.2 1.7,2.2 2)
(10 rows)
/* -- m4 */
SELECT *
FROM pgr_findCloseEdges(
$$SELECT id, geom FROM edges$$,
(SELECT array_agg(geom) FROM pointsOfInterest),
0.5,
dryrun => true);
NOTICE:
WITH
edges_sql AS (SELECT id, geom FROM edges),
point_sql AS (SELECT unnest('{0101000000CDCCCCCCCCCCFC3F9A9999999999D93F:0101000000333333333333D33FCDCCCCCCCCCCFC3F:0101000000CDCCCCCCCCCC04409A99999999990940:0101000000CDCCCCCCCCCC10403333333333330340:01010000003333333333330740CDCCCCCCCCCCFC3F:01010000009A99999999990140333333333333FB3F}'::geometry[]) AS point),
results AS (
SELECT
id::BIGINT AS edge_id,
ST_LineLocatePoint(geom, point) AS fraction,
CASE WHEN ST_Intersects(ST_Buffer(geom, 0.5, 'side=right endcap=flat'), point)
THEN 'r'
ELSE 'l' END::CHAR AS side,
geom <-> point AS distance,
point,
ST_MakeLine(point, ST_ClosestPoint(geom, point)) AS new_line
FROM edges_sql, point_sql
WHERE ST_DWithin(geom, point, 0.5)
ORDER BY geom <-> point),
prepare_cap AS (
SELECT row_number() OVER (PARTITION BY point ORDER BY point, distance) AS rn, *
FROM results)
SELECT edge_id, fraction, side, distance, point, new_line
FROM prepare_cap
WHERE rn <= 1
edge_id | fraction | side | distance | geom | edge
---------+----------+------+----------+------+------
(0 rows)
/* -- m5 */
ROLLBACK;
ROLLBACK
|
