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How to find the closest polygons to a point

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0

I am trying to the find the four closest building polygons to a junction point layer. I understand how to obtain this for a single point but am unsure of how to specify the four closest polygons for every point in my layer.

CODE:

drop table if exists corner_buildings;
create table corner_buildings as
select buildings.geom as buildgeom, nodes.geom as nodegeom
from buildings, nodes
where nodes.objectid=1 AND st_Dwithin(buildings.geom, nodes.geom, 200)
order by st_distance(buildings.geom, nodes.geom) Limit 4;

postgis postgresql sql

share

edited 3 mins ago

Daykray

asked 9 mins ago

DaykrayDaykray

846

add a comment | 

0

I am trying to the find the four closest building polygons to a junction point layer. I understand how to obtain this for a single point but am unsure of how to specify the four closest polygons for every point in my layer.

CODE:

drop table if exists corner_buildings;
create table corner_buildings as
select buildings.geom as buildgeom, nodes.geom as nodegeom
from buildings, nodes
where nodes.objectid=1 AND st_Dwithin(buildings.geom, nodes.geom, 200)
order by st_distance(buildings.geom, nodes.geom) Limit 4;

postgis postgresql sql

share

edited 3 mins ago

Daykray

asked 9 mins ago

DaykrayDaykray

846

add a comment | 

I am trying to the find the four closest building polygons to a junction point layer. I understand how to obtain this for a single point but am unsure of how to specify the four closest polygons for every point in my layer.

CODE:

drop table if exists corner_buildings;
create table corner_buildings as
select buildings.geom as buildgeom, nodes.geom as nodegeom
from buildings, nodes
where nodes.objectid=1 AND st_Dwithin(buildings.geom, nodes.geom, 200)
order by st_distance(buildings.geom, nodes.geom) Limit 4;

postgis postgresql sql

share

edited 3 mins ago

Daykray

asked 9 mins ago

DaykrayDaykray

846

share

edited 3 mins ago

Daykray

asked 9 mins ago

DaykrayDaykray

846

share

edited 3 mins ago

Daykray

asked 9 mins ago

DaykrayDaykray

846

asked 9 mins ago

DaykrayDaykray

846

asked 9 mins ago

DaykrayDaykray

846