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https://git.osgeo.org/gitea/postgis/postgis
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33 lines
2.8 KiB
SQL
33 lines
2.8 KiB
SQL
-- Test NULL raster
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SELECT ST_MapAlgebraFct(NULL, 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure) IS NULL FROM ST_TestRaster(0, 0, -1) rast;
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SELECT ST_MapAlgebraFct(NULL, 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure, NULL) IS NULL FROM ST_TestRaster(0, 0, -1) rast;
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-- Test empty raster
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SELECT ST_IsEmpty(ST_MapAlgebraFct(ST_MakeEmptyRaster(0, 10, 0, 0, 1, 1, 1, 1, -1), 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure));
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SELECT ST_IsEmpty(ST_MapAlgebraFct(ST_MakeEmptyRaster(0, 10, 0, 0, 1, 1, 1, 1, -1), 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure, NULL));
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-- Test hasnoband raster
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SELECT ST_HasNoBand(ST_MapAlgebraFct(ST_MakeEmptyRaster(10, 10, 0, 0, 1, 1, 1, 1, -1), 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure));
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SELECT ST_HasNoBand(ST_MapAlgebraFct(ST_MakeEmptyRaster(10, 10, 0, 0, 1, 1, 1, 1, -1), 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure, NULL));
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-- Test hasnodata value
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(ST_SetBandNoDataValue(rast, NULL), 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure), 1, 1) FROM ST_TestRaster(0, 0, -1) rast;
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(ST_SetBandNoDataValue(rast, NULL), 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure, NULL), 1, 1) FROM ST_TestRaster(0, 0, -1) rast;
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-- Test user function
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(rast, 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure), 1, 1) FROM ST_TestRaster(0, 0, -1) rast;
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(ST_SetBandNoDataValue(rast, NULL), 1, NULL, 'raster_plus_twenty(float, text[])'::regprocedure, NULL), 1, 1) FROM ST_TestRaster(0, 0, -1) rast;
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-- Test pixeltype
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(rast, 1, '4BUI', 'raster_plus_twenty(float, text[])'::regprocedure), 1, 1) FROM ST_TestRaster(0, 0, 100) rast;
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(rast, 1, '4BUId', 'raster_plus_twenty(float, text[])'::regprocedure), 1, 1) FROM ST_TestRaster(0, 0, 100) rast;
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(rast, 1, '2BUI', 'raster_plus_twenty(float, text[])'::regprocedure), 1, 1) FROM ST_TestRaster(0, 0, 101) rast;
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-- Test user callbacks
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SELECT ST_Value(rast, 1, 1) + 13, ST_Value(ST_MapAlgebraFct(rast, 1, NULL, 'raster_plus_arg1(float, text[])'::regprocedure, '13'), 1, 1) FROM ST_TestRaster(0, 0, 200) AS rast;
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SELECT ST_Value(rast, 1, 1) * 21 + 14, ST_Value(ST_MapAlgebraFct(rast, 1, NULL, 'raster_polynomial(float, text[])'::regprocedure, '21', '14'), 1, 1) FROM ST_TestRaster(0, 0, 300) AS rast;
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-- Test null return from a user function = NODATA cell value
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SELECT ST_Value(rast, 1, 1), ST_Value(ST_MapAlgebraFct(rast, 1, NULL, 'raster_nullage(float, text[])'::regprocedure), 1, 1) FROM ST_TestRaster(0, 0, 100) AS rast;
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