Tilman,

I've traced the code, and see where it is stroking the pattern onto a 
TilingPaint object in response to the PDF 'B' operator.  However, I don't see 
any code that adds the generated bitmap to the DOM.  Consequently, it never 
gets written to the output SVG.

I"m using the default ImageHandlerBase64Encoder which is supposed to store the 
base64 encoded images directly in the SVG output/

What am I missing?

Rich Stafford
Chief Scientist
eQuorum Corporation

At 12:26 PM 1/6/2023, Tilman Hausherr wrote:
>Hi,
>
>This is in TilingPaint.java  and PageDrawer.java . It's one of the tricky 
>parts in the code. No we can't draw them as vectors.
>
>Tilman
>
>On 06.01.2023 17:57, Rich Stafford wrote:
>>Which PDFBox module handles the patterns?  Is there anyway to have PDFBox 
>>draw the patterns as vectors?
>>
>>Rich
>>
>>At 11:40 AM 1/6/2023, Tilman Hausherr wrote:
>>>Hi,
>>>
>>>I can confirm the effect with my own conversion code (which may or may not 
>>>be the same). I looked at the SVG and there's one thing missing: PDFBox 
>>>converts patterns to bitmaps and then uses TexturePaint. So there should be 
>>>some binary content in the SVG but there isn't. Could it be that there is 
>>>some option that should be set?
>>>
>>>Btw the PDF has some errors, like 0 255 0 sc  (or rg), this should be 0 1 
>>>0 sc (or rg). But this isn't the cause.
>>>
>>>Tilman
>>>
>>>On 06.01.2023 14:51, Rich Stafford wrote:
>>>>Tilman:
>>>>
>>>>Thanks for your quick response.  I've upgraded to PDFBox 2.0.27, with the 
>>>>same results.
>>>>
>>>>The PDF file can be downloaded here:
>>>>
>>>>https://s3.amazonaws.com/webdl.equorum.com/misc/size2013.pdf
>>>>
>>>><https://s3.amazonaws.com/webdl.equorum.com/misc/size2013.pdf>Thanks for 
>>>>any assistance.  I'm going to start tracing thru Batik source code for 
>>>>the SVG error.
>>>>
>>>>Rich Stafford
>>>>Chief Scientist
>>>>eQuorum Corporation
>>>>***
>>>>At 01:28 PM 1/5/2023, Tilman Hausherr wrote:
>>>>>Hi,
>>>>>
>>>>>Please try with 2.0.27 and upload the PDF somewhere, it didn't get through.
>>>>>
>>>>>Tilman
>>>>>
>>>>>On 05.01.2023 16:28, Rich Stafford wrote:
>>>>>>I am having an issue using PDFBox (pdfbox-app-2.0.21.jar) and 
>>>>>>SVGGraphics2d (batik-1ll-1.16.jar) to generate SVG output from a small 
>>>>>>PDF file.
>>>>>>
>>>>>>This file has about 9 vector lines, and a rectangle filled with 
>>>>>>horizontal lines.ÂÂ  Using the PDFBox PDFRenderer to JPG, I get the 
>>>>>>appropriate fill for the rectangle:
>>>>>>
>>>>>>screen capture:
>>>>>>Emacs!
>>>>>>
>>>>>>However, using the PDFBox PDFRenderer with SVGGraphics2d, I get a black 
>>>>>>filled rectangle.
>>>>>>
>>>>>>screen capture:
>>>>>>Emacs!
>>>>>>
>>>>>>The generator code fragment is as follows:
>>>>>>
>>>>>>// setup instance of org.w3c.dom.Document
>>>>>>DOMImplementation oDom= GenericDOMImplementation./getDOMImplementation/();
>>>>>>String sSvgOrg= " http://www.w3.org/2000/svg";;
>>>>>>Document oSvgDoc= oDom.createDocument(sSvgOrg, "svg", *null*);
>>>>>>SVGGeneratorContext oCtx= SVGGeneratorContext./createDefault/(oSvgDoc);
>>>>>>oCtx.setEmbeddedFontsOn(*true* );
>>>>>>
>>>>>>// setup renderer object
>>>>>>PDFRenderer oRender= *new* PDFRenderer( oDoc);
>>>>>>
>>>>>>// loop for all pages in the PDF
>>>>>>*for* ( *int* nPageNdx= 0; nPageNdx< oDoc.getNumberOfPages(); nPageNdx++ )
>>>>>>{
>>>>>>// setup output file
>>>>>>*if* ( sOutputMode.equalsIgnoreCase("svg") )
>>>>>>{// svg
>>>>>>String sSvgPageSpec= GenericUtil./PathMake/(sDestPath, "page-"+ 
>>>>>>nPageNdx+".svg");
>>>>>>( *new* File( sSvgPageSpec)).createNewFile();
>>>>>>// setup instance of SVG Generator
>>>>>>SVGGraphics2D oSvgGen= *new* SVGGraphics2D( oCtx, *false*);
>>>>>>// render the page to SVG
>>>>>>oRender .renderPageToGraphics( nPageNdx, oSvgGen);
>>>>>>// write to file
>>>>>>OutputStream oOutStream= *new* FileOutputStream( *new* File(sSvgPageSpec) 
>>>>>>);
>>>>>>Writer oOutWriter= *new* OutputStreamWriter( oOutStream, "UTF-8");
>>>>>>oSvgGen .stream( oOutWriter, *true*);
>>>>>>*continue* ;
>>>>>>}
>>>>>>*if* ( sOutputMode.equalsIgnoreCase("jpg") )
>>>>>>{// jpg output
>>>>>>String sJpgPageSpec= GenericUtil./PathMake/(sDestPath, "page-"+ 
>>>>>>nPageNdx+".jpg");
>>>>>>File oFileJpg= *new* File(sJpgPageSpec);
>>>>>>BufferedImage image= oRender.renderImageWithDPI(nPageNdx, 
>>>>>>GenericUtil./parseInt/(sDpi, 300));
>>>>>>Â Â Â Â ImageIO./write/(image, "JPEG", oFileJpg);
>Jpg);
>>>>>>continue;
>>>>>>}
>>>>>>}
>>>>>>
>>>>>>I've attached the input PDF file as well.
>>>>>>
>>>>>>Thoughts?
>>>>>>
>>>>>>Rich Stafford
>>>>>>Chief Scientist
>>>>>>eQuorum Corporation
>>>>>>
>>>>>>
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