7.57 SDO_GEOR.getDefaultGreen
Format
SDO_GEOR.getDefaultGreen( georaster IN SDO_GEORASTER ) RETURN NUMBER;
Description
Returns the number of the layer to be used for the green color component (in the RGB color space) for displaying a GeoRaster object.
Usage Notes
The default red, green, and blue values are used for true-color displays, not for pseudocolor or grayscale displays. These values are optional, and they are intended for use only when visualizing multilayer or hyperspectral GeoRaster objects.
You can return the layer numbers for all three color components (RGB) by using the SDO_GEOR.getDefaultColorLayer function.
Examples
The following example returns the layer numbers for the red, blue, and green color components for displaying the GeoRaster objects in the table named GEORASTER_TABLE, whose definition is presented after Example 1-1 in Storage Parameters.
SELECT georid, sdo_geor.getDefaultRed(georaster) red, sdo_geor.getDefaultGreen(georaster) green, sdo_geor.getDefaultBlue(georaster) blue FROM georaster_table; GEORID RED GREEN BLUE ---------- ---------- ---------- ---------- 1 1 2 3 2 3 31 20 13
Parent topic: SDO_GEOR Package Reference