imageText2PNG

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Module

The imageText2PNG accessor is exported by the urn:org:ten60:util:image module. Import this module to gain access to the accessor.

Syntax

URI

active:imageText2PNG

Argument	Rules	Description
operand	Mandatory Fragment OK	the text source
operator	Mandatory	A text2PNG document with specification of the image to generate

Example Usage

DPML

<instr>
  <type>imageText2PNG</type>
  <operand>mydocument.xml#xpointer(/root/text)</operand>
  <operator>
    <text2PNG>
      <fontface>Serif</fontface>
      <fontsize>20</fontsize>
      <color>888844</color>
      <bgcolor>FFFFFF</bgcolor>
    </text2PNG>
  </operator>
  <target>this:response</target>
</instr>

NetKernel Foundation API

req=context.createSubRequest("active:imageText2PNG");
req.addArgument("operand", [resource representation, aspect, or URI] );
req.addArgument("operator", [resource representation, aspect, or URI] );
result=context.issueSubRequest(req);

Purpose

Generates a PNG bitmap image of the text string contained as the first child of the XML fragment specified as the operand.

The operator provides a text2PNG specification document which specifies font, fontsize, foreground and background colors. New fonts can be added to the fonts/ directory of the util_image module.