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--- news:release_2_12 [2012/03/19 13:08] – announced pipe shell herr
+++ news:release_2_12 [2019/01/29 21:46] (current) – external edit 127.0.0.1
@@ Line 3: / Line 3: @@
 Release date: March 19, 2012.
-Release 2.12 is now available on the [[download:start|Downloads]] page. Here are the most important new features:
+Release 2.12 is now available on the [[download:start|Downloads]] page. Below we list the most important new features.  In addition to that we have a number of minor additions and bug fixes.
-  * new client for integer hull computation
-  * interface to Sketch 3D/TikZ
-  * handling of fans with non-trivial lineality space
-  * unification of template parameters
-  * pipe shell
-  * multitude of minor editions and bugfixes
 ==== Integer hull computation ====
-Two scripts simplify the computation of the convex hull of the lattice (integer) points in a polyhedron. The script will be described in more detail in the tutorial [[tutorial:optimization|polymake and Optimization]].
+Two scripts simplify the computation of the convex hull of the lattice (integer) points in a polyhedron. The script will be described in more detail in the tutorial [[user_guide:tutorials:optimization|polymake and Optimization]].
 ==== Interface to Sketch 3D/TikZ ====
+Polymake is now able to produce and display TikZ pictures via an interface to [[http://www.frontiernet.net/~eugene.ressler/|Sketch 3D]]. Here is a simple example:
+<code>
+sketch(cube(3)->VISUAL);
+sketch(cube(3)->VISUAL, File=>"cube.sk");
+</code>
+With the second command one can export a polytope to a sketch input file.  To get the TikZ code just call sketch.
+The interface can handle most of the basic customization options like colors for facets and vertices as well as thickness, transparency, ... (see also [[user_guide:tutorials:visual_tutorial|Tutorial for Visualization]])
+<code>
+sketch(cube(3)->VISUAL(VertexThickness=>3, FacetColor=>"blue", FacetTransparency=>1));
+</code>
+The visual object now has three more options to customize the viewing parameters for the sketch output.
+<code>
+sketch(cube(3)->VISUAL(ViewPoint=>[1,2,3], ViewDirection=>[0,0,0], ViewUp=>[0,1,1]));
+</code>
+  * ''ViewPoint'' is the point from where one is looking at the object (Default: ''[10,11,9]'').
+  * ''ViewDirection'' is the point to where one is looking (Default: ''[0,0,0]'').
+  * ''ViewUp'' defines which direction should be up (Default: ''[0,1,0]'').
+(see also [[http://www.frontiernet.net/~eugene.ressler/sketch.html#Transform-literals|Sketch 3d documentation]])
 ==== Fans with non-trivial lineality space ====
@@ Line 27: / Line 38: @@
 ==== Pipe shell ====
+polymake can be called from the command line with the option "-".  It then reads commands from stdin and writes the output to stdout.  This is just a fallback if you need to interface to polymake and cannot use the callable library.