What's the simplest way to make equidistant circles in PostGIS/QGIS? (my software versions are Postgres 9.3, PostGIS is 2.1, QGIS 2.10)
I'm trying to make it naively. I create buffers around my city from 1,000 km to 10,000 km in PostGIS, but the circles get broken.
WITH series AS (SELECT generate_series(1, 10, 1) AS i)SELECT st_buffer('point(82.9216 55.0292)'::geography, i * 1000000) buff, i AS idFROM series;This is what I see in QGIS. Circles break actually far away from north pole.
أكثر...
I'm trying to make it naively. I create buffers around my city from 1,000 km to 10,000 km in PostGIS, but the circles get broken.
WITH series AS (SELECT generate_series(1, 10, 1) AS i)SELECT st_buffer('point(82.9216 55.0292)'::geography, i * 1000000) buff, i AS idFROM series;This is what I see in QGIS. Circles break actually far away from north pole.
أكثر...