Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / geometry-1.5.0 / geom2d / drawShape.m

diff --git a/octave_packages/geometry-1.5.0/geom2d/drawShape.m b/octave_packages/geometry-1.5.0/geom2d/drawShape.m
new file mode 100644 (file)
index 0000000..13a42f1
--- /dev/null
+++ b/octave_packages/geometry-1.5.0/geom2d/drawShape.m
@@ -0,0 +1,110 @@
+%% Copyright (c) 2011, INRA
+%% 2005-2011, David Legland <david.legland@grignon.inra.fr>
+%% 2011 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
+%%
+%% All rights reserved.
+%% (simplified BSD License)
+%%
+%% Redistribution and use in source and binary forms, with or without
+%% modification, are permitted provided that the following conditions are met:
+%%
+%% 1. Redistributions of source code must retain the above copyright notice, this
+%%    list of conditions and the following disclaimer.
+%%     
+%% 2. Redistributions in binary form must reproduce the above copyright notice, 
+%%    this list of conditions and the following disclaimer in the documentation
+%%    and/or other materials provided with the distribution.
+%%
+%% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+%% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+%% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+%% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+%% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+%% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+%% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+%% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+%% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+%% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+%% POSSIBILITY OF SUCH DAMAGE.
+%%
+%% The views and conclusions contained in the software and documentation are
+%% those of the authors and should not be interpreted as representing official
+%% policies, either expressed or implied, of copyright holder.
+
+%% -*- texinfo -*-
+%% @deftypefn {Function File} drawShape (@var{type}, @var{param})
+%% @deftypefnx {Function File} drawShape (@dots{}, @var{option})
+%%  Draw various types of shapes (circles, polygons...).
+%%
+%%   drawShape(TYPE, PARAM)
+%%   Draw the shape of type TYPE, specified by given parameter PARAM. TYPE
+%%   can be one of 'circle', 'ellipse', 'rect', 'polygon', 'curve'
+%%   PARAM depend on the type. For example, if TYPE is 'circle', PARAM will
+%%   contain [x0 y0 R].
+%%
+%%   Examples :
+%%   @example
+%%   drawShape('circle', [20 10 30]);
+%%   Draw circle centered on [20 10] with radius 10.
+%%   drawShape('rect', [20 20 40 10 pi/3]);
+%%   Draw rectangle centered on [20 20] with length 40 and width 10, and
+%%   oriented pi/3 wrt axis Ox.
+%% @end example
+%%
+%%   drawShape(..., OPTION)
+%%   also specifies drawing options. OPTION can be 'draw' (default) or
+%%   'fill'.
+%% @end deftypefn
+function varargout = drawShape(type, param, varargin)
+
+  if ~iscell(type)
+      type = {type};
+  end
+  if ~iscell(param)
+      tmp = cell(1, size(param, 1));
+      for i=1:size(param, 1)
+          tmp{i} = param(i,:);
+      end
+      param = tmp;
+  end
+
+  option = 'draw';
+  if ~isempty(varargin)
+      var = varargin{1};
+      if strcmpi(var, 'fill')
+          option = 'fill';
+      end
+  end
+
+      
+  % transform each shape into a polygon
+  shape = cell(1,length(type));
+  for i=1:length(type)    
+      if strcmpi(type{i}, 'circle')
+          shape{i} = circleAsPolygon(param{i}, 128);
+      elseif strcmpi(type{i}, 'rect')
+          shape{i} = rectAsPolygon(param{i});
+      elseif strcmpi(type{i}, 'polygon')
+          shape{i} = param{i};        
+      end
+  end
+
+
+  hold on;
+  h = zeros(length(shape), 1);
+  if strcmp(option, 'draw')
+      for i=1:length(shape)
+          h(i) = drawPolygon(shape{i});
+      end
+  else
+      for i=1:length(shape)
+          h(i) = fillPolygon(shape{i});
+      end
+  end
+
+  if nargout>0
+      varargout{1}=h;
+  end
+
+endfunction
+