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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 = fillPolygon3d(varargin)
%FILLPOLYGON3D Fill a 3D polygon specified by a list of vertex coords.
%
% fillPolygon3d(COORD, COLOR)
% packs coordinates in a single [N*3] array.
% COORD can also be a cell array of polygon, in this case each polygon is
% drawn using the same color.
%
% fillPolygon3d(PX, PY, PZ, COLOR)
% specifies coordinates in separate numeric vectors (either row or
% columns)
%
% fillPolygon3d(..., PARAM, VALUE)
% allows to specify some drawing parameter/value pairs as for the plot
% function.
%
% H = fillPolygon3d(...)
% also returns a handle to the list of created patch objects.
%
% Example
% t = linspace(0, 2*pi, 100)';
% xt = 10 * cos(t);
% yt = 5 * sin(t);
% zt = zeros(100,1);
% poly = [xt yt zt];
% figure; hold on; axis equal; fillPolygon3d(poly, 'c');
% drawPolygon3d(poly, 'linewidth', 2, 'color', 'k');
%
% See also
% polygons3d, drawPolygon3d, drawPolyline3d
%
% ------
% Author: David Legland
% E-mail: david.legland@inrae.fr
% Created: 2007-01-05
% Copyright 2007-2023 INRA - BIA PV Nantes - MIAJ Jouy-en-Josas
% Check if axes handle is specified
if isAxisHandle(varargin{1})
hAx = varargin{1};
varargin(1) = [];
else
hAx = gca;
end
% check case we want to draw several curves, stored in a cell array
var1 = varargin{1};
if iscell(var1)
hold on;
h = [];
for i = 1:length(var1(:))
h = [h; fillPolygon3d(hAx, var1{i}, varargin{2:end})]; %#ok<AGROW>
end
if nargout>0
varargout{1}=h;
end
return;
end
% extract vertex coordinates
if min(size(var1)) == 1
% if first argument is a vector (either row or column), then assumes
% first argument contains x coords, second argument contains y coords
% and third one the z coords
px = var1;
if length(varargin) < 3
error('geom3d:fillPolygon3d:Wrong number of arguments in fillPolygon3d');
end
py = varargin{2};
pz = varargin{3};
varargin = varargin(4:end);
else
% first argument contains all three coordinates
px = var1(:, 1);
py = var1(:, 2);
pz = var1(:, 3);
varargin = varargin(2:end);
end
% extract color information
if isempty(varargin)
color = 'c';
else
color = varargin{1};
varargin = varargin(2:end);
end
% fill the polygon
h = fill3(hAx, px, py, pz, color, varargin{:});
if nargout>0
varargout{1}=h;
end
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