1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
## Copyright (C) 2004-2011 David Legland <david.legland@grignon.inra.fr>
## Copyright (C) 2004-2011 INRA - CEPIA Nantes - MIAJ (Jouy-en-Josas)
## Copyright (C) 2012 Adapted to Octave by Juan Pablo Carbajal <carbajal@ifi.uzh.ch>
## 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.
## -*- texinfo -*-
## @deftypefn {Function File} {@var{h} =} drawPolynomialCurve (@var{bnd}, @var{xcoef}, @var{ycoef})
## @deftypefnx {Function File} {@var{h} =} drawPolynomialCurve (@var{bnd}, @var{coefs})
## @deftypefnx {Function File} {@var{h} =} drawPolynomialCurve (@dots{}, @var{npts})
## Draw a polynomial curve approximation
## @end deftypefn
function varargout = drawPolynomialCurve(tBounds, varargin)
## Extract input parameters
% polynomial coefficients for each coordinate
var = varargin{1};
if iscell(var)
xCoef = var{1};
yCoef = var{2};
varargin(1) = [];
elseif size(var, 1)==1
xCoef = varargin{1};
yCoef = varargin{2};
varargin(1:2) = [];
else
xCoef = var(1,:);
yCoef = var(2,:);
varargin(1) = [];
end
nPts = 120;
if ~isempty(varargin)
nPts = varargin{1};
end
# parametrization bounds
t0 = tBounds(1);
t1 = tBounds(end);
## Drawing the polyline approximation
# generate vector of absissa
t = linspace (t0, t1, nPts+1)';
# compute corresponding positions
pts = polynomialCurvePoint (t, xCoef, yCoef);
# draw the resulting curve
h = drawPolyline (pts);
if nargout > 0
varargout{1} = h;
end
endfunction
|
