[FOP-3058] AFP-Renderer does not honour fill-rule 'nonzero' of SVG path.

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.95, 2.7
• Component/s: image/svg, renderer/afp
• Assignee: Unassigned
• Reporter: JYR
• Created: 07/Mar/22 10:21
• Updated: 07/Mar/22 21:02

Description

Hi there,

We have just isolated an interesting bug in the AFP renderer.

We are embedding some SVG graphics in a FO file and the AFP renderer does not seem to take the "fill-rule" attribute into account.
It seems to ignore the fill-rule 'nonzero' of our path and defaults to 'evenodd'.

The PDF renderer does honour this fill-rule, but not the AFP renderer.

We have isolated this issue in a test project. Just unpack TestWithSVGPath-1.7z. All the necessary files are provided.

This is the correct output of the PDF renderer

This is the output of the AFP renderer.

FOP integration:

• We are calling FOP via java.exe.
• FOP is configured with an xconf file.

Expected:

• The AFP-Renderer shall honour the 'fill-rule' attribute of the SVG path.
• If the 'fill-rule' attribute is not specified, the AFP-Renderer shall default to 'nonzero'.

Extract of FO-File

<fo:instream-foreign-object>
	<svg width="46mm" height="46mm" version="1.1" viewBox="0 0 130.394 130.394" xmlns="http://www.w3.org/2000/svg">
		<g font-family="Helvetica,Arial,&quot;Liberation Sans&quot;" transform="translate(0 130.394)">
			<!-- Red background -->
			<path fill="red" shape-rendering="crispEdges" d="
								M56.693,-73.701 
								h17.008
								v17.008h
								-17.008
								z"/>
			<!-- Green cross, vertical block first, then horizontal -->
			<path fill="green" fill-rule="nonzero" shape-rendering="crispEdges" d="
								M63.543,-70.709
								h 3.307
								v 11.024
								h -3.307
								z
								m-3.858,3.858
								h11.024
								v3.307
								h-11.024
								z
								"/>
			<!-- 2 Rectangles as workaround for Bug in AFP-Renderer -->
			<!-- <rect x="59.685" y="-66.85" width="11.024" height="3.307" fill="powderblue"/> -->
			<!-- <rect x="63.543" y="-70.709" height="11.024" width="3.307" fill="powderblue"/> -->
		</g>
	</svg>
</fo:instream-foreign-object>

We spotted this bug with FOP version 0.95, but it still occurs with FOP 2.7.