ST_Raster.getPyramidLevel

Definition

The ST_Raster.getPyramidLevel function returns the maximum pyramid level of a raster. Level 0 is the full-resolution level, or base level.

Syntax

Oracle

getPyramidLevel()

PostgreSQL

getPyramidLevel(raster IN ST_RASTER)

SQL Server

getPyramidLevel()

Returns

Oracle

Number

PostgreSQL

Integer

SQL Server

Integer

Parameters

raster—ST_RASTER object to be tested

Examples

The following queries return the pyramid level for each raster in the table:

Oracle

SELECT image.raster_id, image.getPyramidLevel()
FROM FOO t;

T.IMAGE.RASTER_ID T.IMAGE.GETPYRAMIDLEVEL()
--------------- -----------------------
              2                       2
              3                       2
             23                       0
             24                       0
             42                       0
             43                       0

PostgreSQL

SELECT raster_id(image), getPyramidLevel(image)
FROM foo;

RASTER_ID(IMAGE) GETPYRAMIDLEVEL(IMAGE)
---------------- ----------------------
               2                      2
               3                      2
              23                      0
              24                      0
              42                      0
              43                      0

SQL Server

SELECT image.raster_id, image.getPyramidLevel()
FROM foo;

IMAGE.RASTER_ID IMAGE.GETPYRAMIDLEVEL()
--------------- -----------------------
              2                       2
              3                       2
             23                       0
             24                       0
             42                       0
             43                       0