[Plplot-cvs] SF.net SVN: plplot:[9775] trunk/README.release

[<ai...@us...>]

Revision: 9775
          http://plplot.svn.sourceforge.net/plplot/?rev=9775&view=rev
Author:   airwin
Date:     2009-03-26 19:56:31 +0000 (Thu, 26 Mar 2009)

Log Message:
-----------
Add release notes about enabling text clipping by default for the cairo
devices.

Modified Paths:
--------------
    trunk/README.release

Modified: trunk/README.release
===================================================================
--- trunk/README.release	2009-03-26 01:52:28 UTC (rev 9774)
+++ trunk/README.release	2009-03-26 19:56:31 UTC (rev 9775)
@@ -59,6 +59,7 @@
 
 1.1 libnistcd (a.k.a. libcd) now built internally for -dev cgm
 1.2 get-drv-info now changed to test-drv-info
+1.3 Text clipping now enabled by default for the cairo devices
 
 2. Changes relative to PLplot 5.8.0 (the previous stable release)
 
@@ -89,6 +90,7 @@
 2.24 Documentation updates
 2.25 libnistcd (a.k.a. libcd) now built internally for -dev cgm
 2.26 get-drv-info now changed to test-drv-info
+2.27 Text clipping now enabled by default for the cairo devices
 
 1. Changes relative to PLplot 5.9.2 (the previous development release)
 
@@ -135,6 +137,18 @@
 *.rc file with the one configured by cmake to be sure the dynamic device
 has been built correctly.
 
+1.3 Text clipping now enabled by default for the cairo devices
+
+When correct text clipping was first implemented for cairo devices, it was
+discovered that the libcairo library of that era (2007-08) did that clipping
+quite inefficiently so text clipping was disabled by default.  Recent tests
+of text clipping for the cairo devices using libcairo 1.6.4 (released in
+2008-04) shows text clipping is quite efficient now.  Therefore, it is now
+enabled by default.  If you notice a significant slowdown for some libcairo
+version prior to 1.6.4 you can use the option -drvopt text_clipping=0 for
+your cairo device plots (and accept the improperly clipped text results that
+might occur with that option).  Better yet, use libcairo 1.6.4 or later.
+
 2. Changes relative to PLplot 5.8.0 (the previous stable release)
 
 2.1 All autotools-related files have now been removed
@@ -475,3 +489,15 @@
 *.rc file with the one configured by cmake to be sure the dynamic device
 has been built correctly.
 
+2.27 Text clipping now enabled by default for the cairo devices
+
+When correct text clipping was first implemented for cairo devices, it was
+discovered that the libcairo library of that era (2007-08) did that clipping
+quite inefficiently so text clipping was disabled by default.  Recent tests
+of text clipping for the cairo devices using libcairo 1.6.4 (released in
+2008-04) shows text clipping is quite efficient now.  Therefore, it is now
+enabled by default.  If you notice a significant slowdown for some libcairo
+version prior to 1.6.4 you can use the option -drvopt text_clipping=0 for
+your cairo device plots (and accept the improperly clipped text results that
+might occur with that option).  Better yet, use libcairo 1.6.4 or later.
+


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.