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Results tagged with random
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user 12768
Having no specific pattern, purpose, or objective
6
votes
1
answer
2k
views
Is there any random data generator supporting geometry in PostGIS?
I found few random data generators for PostgreSQL (such as this one), but none supporting PostGIS geometry type, other than point. … I have some idea how to do it (random starting direction or random angle from previous node + random distance from quasi-centroid). …
- 1,517
8
votes
Is there any random data generator supporting geometry in PostGIS?
()*(x_max - x_min) + x_min,
random()*(y_max - y_min) + y_min
), srid
)
);
END
$func$ LANGUAGE plpgsql VOLATILE;
I don't need the position to be extra accurate, so I use approximate … , but now we are safe from endless loop
dist := random() * max_dist;
SELECT array_append( nodes, ST_Translate( qcen, sin(angle)*dist, cos(angle)*dist ) ) INTO nodes;
angle := angle + random …
- 1,517