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DIMENSION

Sintassi

Dimension(g)

Spiegazione

Restituisce le dimensioni del valore geometrico g. Il risultato può essere:

ValoreSignificato
-1geometria vuota
0geometria senza lunghezza o area
1geometria senza area ma lunghezza maggiore di zero
2geometria con area maggiore di zero

Esempi

MariaDB [(none)]> SELECT Dimension(GeomFromText('LineString(1 1,2 2)'));
+------------------------------------------------+
| Dimension(GeomFromText('LineString(1 1,2 2)')) |
+------------------------------------------------+
|                                              1 |
+------------------------------------------------+
1 row in set (0.00 sec)
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