Author: jahewson
Date: Thu Apr 9 19:03:08 2015
New Revision: 1672455
URL: http://svn.apache.org/r1672455
Log:
PDFBOX-2753: Improve rendering of filled thin lines
Modified:
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java
Modified:
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java
URL:
http://svn.apache.org/viewvc/pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java?rev=1672455&r1=1672454&r2=1672455&view=diff
==============================================================================
---
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java
(original)
+++
pdfbox/trunk/pdfbox/src/main/java/org/apache/pdfbox/rendering/PageDrawer.java
Thu Apr 9 19:03:08 2015
@@ -36,7 +36,6 @@ import java.awt.image.Raster;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
-
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.pdfbox.contentstream.PDFGraphicsStreamEngine;
@@ -529,8 +528,12 @@ public final class PageDrawer extends PD
// disable anti-aliasing for rectangular paths, this is a workaround
to avoid small stripes
// which occur when solid fills are used to simulate piecewise
gradients, see PDFBOX-2302
- boolean isRectangular = isRectangular(linePath);
- if (isRectangular)
+ // note that we ignore paths with a width/height under 1 as these are
fills used as strokes,
+ // see PDFBOX-1658 for an example
+ Rectangle2D bounds = linePath.getBounds2D();
+ boolean noAntiAlias = isRectangular(linePath) && bounds.getWidth() > 1
&&
+ bounds.getHeight() >
1;
+ if (noAntiAlias)
{
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
@@ -539,7 +542,7 @@ public final class PageDrawer extends PD
graphics.fill(linePath);
linePath.reset();
- if (isRectangular)
+ if (noAntiAlias)
{
// JDK 1.7 has a bug where rendering hints are reset by the above
call to
// the setRenderingHint method, so we re-set all hints, see
PDFBOX-2302
