Octave API: Added support for interval arithmetic libraries

Author: oheim

client-api/Octave/DESCRIPTION

@@ -17,6 +17,7 @@ Description: VIBes is a visualization system that aims at providing people
  program to communicate with the viewer in order to draw figures.
 
  This package integrates the VIBes API into Octave. The VIBes application
- is required for operation and must be installed seperately.
+ is required for operation and must be installed seperately. Data types from
+ third-party interval arithmetic libraries for Octave are also supportd.
 Depends: octave (>= 4.0.0)
 License: GPLv3+

client-api/Octave/Makefile

@@ -115,7 +115,7 @@ run: $(INSTALLED_PACKAGE)
 .PHONY: clean
 
 clean:
-	rm -f \
+	rm -rf \
 		"$(PACKAGE)-*.tar" \
 		"$(PACKAGE)-*.tar.gz" \
 		"$(HTML_DIR)" \

client-api/Octave/inst/+vibes/drawBox.m

@@ -19,9 +19,12 @@
 ## -*- texinfo -*-
 ## @documentencoding UTF-8
 ## @deftypefn  {Function File} {} vibes.drawBox (@var{box})
-## Plot a single box with pairs of lower bounds and upper bounds.  The matrix
-## @var{box} must be of size either @option{[2 @var{n}]} or
+## Plot a single box with pairs of lower bounds and upper bounds.
+##
+## The matrix @var{box} must be of size either @option{[2 @var{n}]} or
 ## @option{[@var{n} 2]}, where @var{n} is the number of axes.
+##
+## Alternatively @var{box} may be an interval vector.
 ## @end deftypefn
 ##
 ## @deftypefn  {Function File} {} vibes.drawBox (@var{x_lb}, @var{x_ub}, @var{y_lb}, @var{y_ub})
@@ -42,6 +45,22 @@ function drawBox (varargin)
     print_usage ();
 endif
 
+if (any (isa (varargin{1}, {'infsup', 'intval'})))
+    varargin{1} = horzcat (vec (inf (varargin{1})), ...
+                           vec (sup (varargin{1})));
+    ## Stack multiple intervals into a common box
+    for i = 2 : nargin
+        if (any (isa (varargin{2}, {'infsup', 'intval'})))
+            varargin = {vertcat(varargin{1}, ...
+                                horzcat (vec (inf (varargin{2})), ...
+                                         vec (sup (varargin{2})))), ...
+                        varargin{3:end}};
+        else
+            break
+        endif
+    endfor
+endif
+
 __vibes__ ('drawBox', varargin{:});
 
 endfunction