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| <!DOCTYPE document PUBLIC "-//APACHE//DTD Documentation V1.3//EN" "http://forrest.apache.org/dtd/document-v13.dtd"> |
| |
| <document> |
| <header> |
| <title>Apache™ FOP Development: SVG Issues</title> |
| <version>$Revision$</version> |
| </header> |
| <body> |
| <p>See also <link href="../trunk/graphics.html#svg">SVG User Documentation</link> for more information.</p> |
| <section> |
| <title>Examples</title> |
| <p> |
| These examples illustrate a number of issues relating to conversion |
| to PDF: |
| </p> |
| <table> |
| <caption>SVG to PDF examples</caption> |
| <tr> |
| <th/> |
| <th>svg file</th> |
| <th>png file</th> |
| <th>pdf result</th> |
| </tr> |
| <tr> |
| <td>images</td> |
| <td><link href="svg/images.svg">images.svg</link></td> |
| <td><link href="svg/images.png">images.png</link></td> |
| <td><link href="svg/images.pdf">images.pdf</link></td> |
| </tr> |
| <tr> |
| <td>svg linking</td> |
| <td><link href="svg/link.svg">link.svg</link></td> |
| <td><link href="svg/link.png">link.png</link></td> |
| <td><link href="svg/link.pdf">link.pdf</link></td> |
| </tr> |
| <tr> |
| <td>gradients and patterns</td> |
| <td><link href="svg/paints.svg">paints.svg</link></td> |
| <td><link href="svg/paints.png">paints.png</link></td> |
| <td><link href="svg/paints.pdf">paints.pdf</link></td> |
| </tr> |
| <tr> |
| <td>various text and effects on text</td> |
| <td><link href="svg/text.svg">text.svg</link></td> |
| <td><link href="svg/text.png">text.png</link></td> |
| <td><link href="svg/text.pdf">text.pdf</link></td> |
| </tr> |
| <tr> |
| <td>transparent objects</td> |
| <td><link href="svg/transparency.svg">transparency.svg</link></td> |
| <td><link href="svg/transparency.png">transparency.png</link></td> |
| <td><link href="svg/transparency.pdf">transparency.pdf</link></td> |
| </tr> |
| </table> |
| <p> |
| As can be seen most of the specific issues are handled. |
| </p> |
| <note> |
| You will need Acrobat 5.0 to see transparency. |
| </note> |
| <table> |
| <caption>XSL:FO to PDF examples</caption> |
| <tr> |
| <th/> |
| <th>fo file</th> |
| <th>pdf result</th> |
| </tr> |
| <tr> |
| <td>embedding svg</td> |
| <td><link href="fo/embedding.fo">embedding.fo</link></td> |
| <td><link href="fo/embedding.fo.pdf">embedding.fo.pdf</link></td> |
| </tr> |
| </table> |
| </section> |
| <section> |
| <title>Developer Notes</title> |
| <p> |
| For most output formats in FOP the SVG is simply drawn into |
| an image with Batik. |
| For PDF there are a set of classes to handle drawing the |
| <link href="http://xml.apache.org/batik/architecture.html">GVT (Graphic Vector Toolkit)</link> |
| into PDF markup. |
| </p> |
| <section> |
| <title>Classes</title> |
| <p> |
| These are the relevant classes, found in the package org.apache.fop.svg : |
| </p> |
| <ul> |
| <li><em>PDFGraphics2D</em> |
| <br/> |
| used for drawing onto a Graphics2D into an existing pdf document, used |
| internally to draw the svg. |
| </li> |
| <li><em>PDFDocumentGraphics2D</em> |
| <br/> |
| used to create a pdf document and inherits from PDFGraphics2D to do the |
| rest of the drawing. Used by the transcoder to create a standalone pdf |
| document from an svg. Can be used independantly the same as any Graphics2D. |
| </li> |
| <li><em>PDFTranscoder</em> |
| <br/> |
| used by Batik to transcode an svg document into a standalone pdf, via |
| PDFDocumentGraphics2D. |
| </li> |
| </ul> |
| </section> |
| <section> |
| <title>Ideas</title> |
| <p> |
| Batik can convert ttf to svg font. |
| This svg font could be converted into a pdf stroked font |
| (type 3 font). |
| </p> |
| </section> |
| </section> |
| </body> |
| </document> |
