[BATIK-304] low quality render border of the path command with filter effect

• Type: Bug
• Status: Closed
• Resolution: Won't Fix
• Affects Version/s: 1.5
• Component/s: GVT Filters
• Environment: Operating System: Linux; Platform: All
• Assignee: Batik Developer's Mailing list
• Reporter: alex madon
• Created: 29/Aug/02 14:08
• Updated: 16/Nov/04 19:05
• Resolved: 16/Nov/04 19:05

Description

Using batik-src-1.5beta4b.zip
the code attached below does not render wel using batik.
It does render well with adobe pluggin for Mozilla.
All tests have been made under Linux
Linux 2.4.18

The problem occurs around the coordinate 100,100:
the red border is a bit thicker at the intersection of the zone on the right
hand side.
This is a very subtil bug but that lokks ugly when I crop the corners only
(actually the corners or the white rectangle) and use them in a HTML table.

This problem occurs in the SVG browser as well as in the rasterizer, so I guess
it should be a filter routine problem.

Thanks
Alex

-------------------------------------------------------------------------------

<?xml version="1.0"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">

<svg width="3cm" height="14cm" viewBox="-20 -20 140 640"
xmlns="http://www.w3.org/2000/svg">
<defs>
<filter id="MyFilter" filterUnits="userSpaceOnUse" x="-20" y="-20" width="140"
height="640">
<feGaussianBlur in="SourceAlpha" stdDeviation="4" result="blur"/>
<feOffset in="blur" dx="4" dy="4" result="offsetBlur"/>
<feSpecularLighting in="blur" surfaceScale="5" specularConstant=".75"
specularExponent="20" lighting-color="#bbbbbb"
result="specOut">
<fePointLight x="-5000" y="-10000" z="20000"/>
</feSpecularLighting>
<feComposite in="specOut" in2="SourceAlpha" operator="in" result="specOut"/>
<feComposite in="SourceGraphic" in2="specOut" operator="arithmetic"
k1="0" k2="1" k3="1" k4="0" result="litPaint"/>
<feMerge>
<feMergeNode in="offsetBlur"/>
<feMergeNode in="litPaint"/>
</feMerge>
</filter>
</defs>

<g filter="url(#MyFilter)" >

<!-- a title and text -->
<path
fill="none"
stroke="#D90000"
stroke-width="10"
d="
M0,120
C0,100 0,100 20,100
L80,100
C100,100 100,100 100,120
M0,120
L0,20
C0,0 0,0 20,0
L80,0
C100,0 100,0 100,20
L100,120
M0,120
L0,180
C0,200 0,200 20,200
L80,200
C100,200 100,200 100,180
L100,100
"/>

<rect
x="0"
y="0"
width="100"
height="100"
fill="#D90000"
stroke="#D90000"
stroke-width="0"
/>

</g>

</svg>