imageRotate

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Module

The imageRotate accessor is exported by the urn:org:ten60:util:image module. Import this module to gain access to the accessor.

Syntax

URI

active:imageRotate

Argument	Rules	Description
operand	Mandatory	the Java bitmap image
operator	Mandatory	A format document with the rotation to apply

Example Usage

DPML

<instr>
  <type>imageRotate</type>
  <operand>var:myimage</operand>
  <operator>
    <imageRotate>
      <angle>100</angle>
    </imageRotate>
  </operator>
  <target>this:response</target>
</instr>

NetKernel Foundation API

req=context.createSubRequest("active:imageRotate");
req.addArgument("operand", [resource representation, aspect, or URI] );
req.addArgument("operator", [resource representation, aspect, or URI] );
result=context.issueSubRequest(req);

Purpose

Rotates an image with the format specified by the operator. If necessary the image will be resized to accomodate the rotation.

The operator document specifies the rotation angle in degrees (+ve or -ve integer value). Its syntax is

<imageRotate>
  <angle>100</angle>
</imageRotate>

imageRotate accepts and returns an ImageAspect resource which holds a Java AWT bitmap image and can be pipelined into any other image tool.