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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 = drawRect(varargin)
%DRAWRECT Draw rectangle on the current axis.
%
% drawRect(RECT)
% draws the rectangles defined by RECT = [X0 Y0 W H].
% the four corners of rectangle are then :
% (X0, Y0), (X0+W, Y0), (X0, Y0+H), (X0+W, Y0+H).
%
% RECT = [X0 Y0 W H THETA] also specifies orientation for the rectangle.
% Theta is given in degrees.
%
% If RECT is a N-by-4 or N-by-5 array, several rectangles are drawn.
%
% drawRect(..., PARAM, VALUE)
% Specifies one or several parameters name-value pairs, see plot function
% for details.
%
% drawRect(AX, ...)
% Specifies the handle of the axis to draw the rectangle on.
%
% H = drawRect(...)
% Returns handle of the created graphic objects.
%
% See also
% drawOrientedBox, drawBox, rectToPolygon
%
% ------
% Author: David Legland
% E-mail: david.legland@inrae.fr
% Created: 2003-12-10
% Copyright 2003-2023 INRA - TPV URPOI - BIA IMASTE
% extract handle of axis to draw on
[ax, varargin] = parseAxisHandle(varargin{:});
rect = varargin{1};
varargin(1) = [];
% number of rectangles to draw
n = size(rect, 1);
% save hold state
holdState = ishold(ax);
hold(ax, 'on');
% display each rectangle
h = zeros(n, 1);
for i = 1:n
% compute vertex corodinates
poly = rectToPolygon(rect(i, :));
% display resulting polygon
h(i) = drawPolygon(ax, poly, varargin{:});
end
% restore hold state
if ~holdState
hold(ax, 'off');
end
% process output
if nargout > 0
varargout = {h};
end
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