X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=NEWS;h=efab6eb8ad30eaa34ed4be16f677484b830e7b0c;hp=febb6184a294cd3cd0b2a69395de8062718b5be7;hb=91725acad298d2f93a9060d9ceceeccbbe595782;hpb=a278779cdf2ded56b89fc404d6914bff7ad7dcbd

diff --git a/NEWS b/NEWS
index febb618..efab6eb 100644
--- a/NEWS
+++ b/NEWS
@@ -1,9 +1,95 @@
 RRDTOOL NEWS
 ============
+Major Changes between 1.0.x and 1.2.x
 
+Graphing
+--------
 
-In this file I am noting the Major changes to rrdtool
-for details check the cvs ChangeLog
+* rewritten graphics generation based on libart.
+  - antialiased output
+  - alpha transparency support
+  - truetype fonts
+ 
+* additional graphics formats: EPS, PDF, SVG
+
+* extended multipart documentation
+
+* VDEF support; define and use variables.  Find, and use, the
+  maximum rate seen by rrdtool; compute and show the average
+
+* Sliding window (trend) analysis
+  Compute a smoother average, for instance over the last 6 CDPs
+
+* percentile (95th or other)
+  Remove peaks, 95 percent of all rates are at or below the
+  returned value
+
+Logging
+-------
+* a second logging interface: rrdtool updatev
+  Verbose updating of the database; show CPDs being created
+
+* Aberrant Behavior Detection with Holt-Winters Forecasting
+  Compare current data with expected data, detect and log when
+  the rates are outside expected levels
+
+* COMPUTE datatype for artificial datasources calculating their
+  input using RPN math and data from the other datasources.
+ 
+Behind the Scenes
+-----------------
+* In order to support Holt-Winters and Calculated Datasources,
+  the rrdtool dataformat has changed. While the new version of rrdtool can
+  read files created with rrdtool 1.0.x. It is not possible to read files
+  created by rrdtool-1.2.x with rrdtool-1.0.x
+
+* External libraries are not included with rrdtool anymore. This is in line
+  with todays trend of using shared libraries everywhere. With the exception
+  of the cgi library most things required by rrdtool will be found on every recent
+  system.
+
+* Memory Mapped IO support for faster logging.
+
+---------------
+
+  Configure and Makefiles and accordingly.
+
+2002/03/26 Peter Speck <speck@ruc.dk>
+  Contribution of an svg output routine for the new gfx graphing part
+
+2002/03/23 Alex van den Bogaerdt <alex@ergens.op.Het.Net>
+  Several visible changes made to rrd_graph
+  * Pie chart support workable
+  * Elements that are not used do not take up space on the img
+  * Hack for the missing rotated text (see --vertical-label)
+  * Tiny boxes in front of labels now scale with the text
+
+2002/01/15 Tobias Oetiker <tobi@oetiker.ch>
+  The BIG graph update
+  * Replace libgd with libart
+  * Added freetype
+  * Updated zlib and libpng
+  * rrd_gfx.c intrduced as libart wrapper
+  * LINE takes now a float as argument
+  * RRDtool uses truetype for fonts
+  * thanks to libart there is now full alpha transparenc
+    and antialiasing.
+  * the new option --font lets customize the font
+    and size for various graph elements
+  * Updated to -> libtool 1.4.2 automake 2.12 autoconf 2.52
+  * new --zoom commandline option for zoom ans shrinking
+  ---- Still missing is rotatet text for the yaxis description
+  ---- Still missing is tab support in the text rendere
+  ---- Still missing is autoconf support for a default truetype font
+
+2001/07/26 Alex van den Bogaerdt <alex@ergens.op.Het.Net>
+  Added TOTAL to the VDEF functions.
+
+2001/07/19 Alex van den Bogaerdt <alex@ergens.op.Het.Net>
+  VDEF support.  This is a variable containing one value
+  and a time component.  This type of variable can hold
+  the result of a function over a complete time series
+  of data (DEF or CDEF) such as the maximum seen, and when.
 
 2001/03/10 Jake Brutlag <jakeb@corp.webtv.net>
   Support for COMPUTE data sources (CDEF data sources). Removes the RPN
@@ -11,18 +97,17 @@ for details check the cvs ChangeLog
   rrd_rpncalc.c. Changes to core files rrd_create and rrd_update. Some
   clean-up of aberrant behavior stuff, including a bug fix. 
   Documentation update (rrdcreate.pod, rrdupdate.pod). Change xml format.
- 
   
 2001/03/07 Tobias Oetiker <oetiker@ee.ethz.ch> 
   Integrated complete rewrite
   of rrdgraph documentation by Alex van den Bogaerdt
-  <alex@slot.hollandcasino.nl>. This also contains info on his planned
+  <alex@ergens.op.Het.Net>. This also contains info on his planned
   changes to the rrdgraph module
 
 2001/03/02 Tobias Oetiker <oetiker@ee.ethz.ch>
   Added Aberrant Patch from Jake Brutlag <jakeb@microsoft.com>
   From now one, new rrd files use version tag 0002. They can
-  NOT be read by the old 1.0.x rrdtools. 
+  NOT be read by the old 1.0.x RRDtools. 
  
   Jake:
   Aberrant Behavior Detection support. A brief overview added to