[Rinside-commits] r196 - pkg/inst/examples/qt/qtdensitySVG

[noreply at r-forge.r-project.org]

Author: edd
Date: 2011-03-25 14:06:41 +0100 (Fri, 25 Mar 2011)
New Revision: 196

Modified:
   pkg/inst/examples/qt/qtdensitySVG/README
Log:
expand README for svg variant a tad


Modified: pkg/inst/examples/qt/qtdensitySVG/README
===================================================================
--- pkg/inst/examples/qt/qtdensitySVG/README	2011-03-25 13:00:51 UTC (rev 195)
+++ pkg/inst/examples/qt/qtdensitySVG/README	2011-03-25 13:06:41 UTC (rev 196)
@@ -1,6 +1,6 @@
 
 This directory provides a simple example of using RInside with the Qt
-toolkit.  Usage is standard Qt usage, do
+toolkit---using a SVG renderer.  Usage is standard Qt usage, do
 
     qmake 
 
@@ -15,5 +15,16 @@
 
 tidies things up.
 
+To generate SVG output, this version depends on the cairoDevice package for R
+which you may need to install.  According to its author Michael Lawrence,
+there are two small issues.  The first is that the SVG produced by
+cairoDevice is a littler richer than the subset which Qt can show.  We
+address this by filtering the file before viewing it.  The other is an
+apparent error in the clipping which we cannot do anything about---Michael
+considers it a rendering issue.
+
+All the help by Michael in getting the svg variant to roll is gratefully
+acknowledged.  
+