Syntax

   @GeometryFormat([REJECTABLE], EXTRACT, <format>, <formatAttribute>, <blobAttribute>)
   @GeometryFormat([REJECTABLE], REPLACE, <format>, <blobAttribute>)

Arguments

   REJECTABLE
      
      Specifies if the function will supply a rejection code and message
      to the invalid feature and output it to the rejected port, or will
      fail upon being supplied invalid features.

      A feature can be rejected for the following reasons:
         - The feature cannot be written to a temporary file
         - The blob attribute can not be read from the file

   <mode>

      EXTRACT: extract the geometry into an attribute.

      REPLACE: replace the geometry with the value in the specified attribute

      Range: (EXTRACT|REPLACE)

   <format>

      The format <blobAttribute> is written to or read from.

      Range: (BMP|GEOTIFF|GIFRASTER|JPEG|JPEG2000|LAS|LAZ|PNGRASTER|SGI|TIFF)

   <blobAttribute>

      The name of the attribute where the binary geometry data blob is to be
      written or read.

      Range: String

   <formatAttribute>

      The name of an attribute which is set to the format name.

      Range: String

Description

   The @GeometryFormat function either serializes the geometry of the feature
   into the Blob Attribute based on the writer format, or deserializes the
   Blob Attribute and replaces the geometry of the feature.

   In EXTRACT mode, the geometry of the feature will be written using the
   selected <format> to a temporary file. The bytes of that file will then be
   copied in the <blobAttribute>. Additionally, <formatAttribute> will be set
   to the specified format.

   In REPLACE mode, the geometry of the feature will be replaced by the
   geometry in <blobAttribute>. The decoding is done according to the
   specified <format>.

   This function may be useful for reading/writing geometries into databases.