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## Copyright (C) 2024 David Legland
## All rights reserved.
##
## 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 AUTHOR 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 the copyright holders.
function varargout = drawShape(varargin)
%DRAWSHAPE 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:
% 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.
%
%
% drawShape(..., OPTION)
% also specifies drawing options. OPTION can be 'draw' (default) or
% 'fill'.
%
% ------
% Author: David Legland
% E-mail: david.legland@inrae.fr
% Created: 2005-04-07
% Copyright 2005-2023 INRA - TPV URPOI - BIA IMASTE
% extract handle of axis to draw on
if isAxisHandle(varargin{1})
ax = varargin{1};
varargin(1) = [];
else
ax = gca;
end
% extract type and representation of shape
type = varargin{1};
param = varargin{2};
varargin(1:2) = [];
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
% compute drawing options
option = 'draw';
if ~isempty(varargin)
var = varargin{1};
if strcmpi(var, 'fill')
option = 'fill';
varargin(1) = [];
elseif strcmpi(var, 'draw')
option = 'draw';
varargin(1) = [];
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} = circleToPolygon(param{i}, 128);
elseif strcmpi(type{i}, 'rect')
shape{i} = rectToPolygon(param{i});
elseif strcmpi(type{i}, 'polygon')
shape{i} = param{i};
end
end
% draw or fill each shape as polygon
hold on;
h = zeros(length(shape), 1);
if strcmp(option, 'draw')
for i = 1:length(shape)
h(i) = drawPolygon(ax, shape{i}, varargin{:});
end
else
for i = 1:length(shape)
h(i) = fillPolygon(ax, shape{i}, varargin{:});
end
end
% format output
if nargout > 0
varargout = {h};
end
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