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comparison scripts/plot/surface.m @ 7110:0e63f1126f01

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[project @ 2007-11-06 22:36:22 by jwe]
author jwe
date Tue, 06 Nov 2007 22:36:22 +0000
parents 5436efbf35e3
children a67d30883ee0
comparison
equal deleted inserted replaced
7109:5436efbf35e3 7110:0e63f1126f01
1
2 ## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004, 1 ## Copyright (C) 1993, 1994, 1995, 1996, 1997, 1999, 2000, 2002, 2004,
3 ## 2005, 2006, 2007 John W. Eaton 2 ## 2005, 2006, 2007 John W. Eaton
4 ## 3 ##
5 ## This file is part of Octave. 4 ## This file is part of Octave.
6 ## 5 ##
32 31
33 ## Author: jwe 32 ## Author: jwe
34 33
35 function h = surface (x, y, z, c) 34 function h = surface (x, y, z, c)
36 35
37 ax = gca(); 36 ax = gca ();
38 37
39 if (nargin == 1) 38 if (nargin == 1)
40 c = z = x; 39 c = z = x;
41 if (ismatrix (z)) 40 if (ismatrix (z))
42 [nr, nc] = size (z); 41 [nr, nc] = size (z);
44 y = (1:nr)'; 43 y = (1:nr)';
45 else 44 else
46 error ("surface: argument must be a matrix"); 45 error ("surface: argument must be a matrix");
47 endif 46 endif
48 elseif (nargin == 3) 47 elseif (nargin == 3)
48 c = z;
49 if (isvector (x) && isvector (y) && ismatrix (z)) 49 if (isvector (x) && isvector (y) && ismatrix (z))
50 if (rows (z) == length (y) && columns (z) == length (x)) 50 if (rows (z) == length (y) && columns (z) == length (x))
51 x = x(:)'; 51 x = x(:)';
52 y = y(:); 52 y = y(:);
53 else 53 else
54 msg = "surface: rows (z) must be the same as length (y) and"; 54 error ("surface: rows (z) must be the same as length (y) and columns (z) must be the same as length (x)");
55 msg = sprintf ("%s\ncolumns (z) must be the same as length (x)", msg);
56 error (msg);
57 endif 55 endif
58 elseif (ismatrix (x) && ismatrix (y) && ismatrix (z)) 56 elseif (ismatrix (x) && ismatrix (y) && ismatrix (z))
59 if (! (size_equal (x, y) && size_equal (x, z))) 57 if (! (size_equal (x, y) && size_equal (x, z)))
60 error ("surface: x, y, and z must have same dimensions"); 58 error ("surface: x, y, and z must have same dimensions");
61 endif 59 endif
62 c = z;
63 else 60 else
64 error ("surface: x and y must be vectors and z must be a matrix"); 61 error ("surface: x and y must be vectors and z must be a matrix");
65 endif 62 endif
66 elseif (nargin == 4) 63 elseif (nargin == 4)
67 if !(size_equal (z, c)) 64 if (! size_equal (z, c))
68 error ("surface: z and c must have same size"); 65 error ("surface: z and c must have same size");
69 endif 66 endif
70 if (isvector (x) && isvector (y) && ismatrix (z)) 67 if (isvector (x) && isvector (y) && ismatrix (z))
71 if (rows (z) == length (y) && columns (z) == length (x)) 68 if (rows (z) == length (y) && columns (z) == length (x))
72 x = x(:)'; 69 x = x(:)';
73 y = y(:); 70 y = y(:);
74 else 71 else
75 msg = "surface: rows (z) must be the same as length (y) and"; 72 error ("surface: rows (z) must be the same as length (y) and columns (z) must be the same as length (x)"
76 msg = sprintf ("%s\ncolumns (z) must be the same as length (x)", msg);
77 error (msg);
78 endif 73 endif
79 elseif (ismatrix (x) && ismatrix (y) && ismatrix (z)) 74 elseif (ismatrix (x) && ismatrix (y) && ismatrix (z))
80 if (! (size_equal (x, y) && size_equal (x, z))) 75 if (! (size_equal (x, y) && size_equal (x, z)))
81 error ("surface: x, y, and z must have same dimensions"); 76 error ("surface: x, y, and z must have same dimensions");
82 endif 77 endif
85 endif 80 endif
86 else 81 else
87 print_usage (); 82 print_usage ();
88 endif 83 endif
89 84
90 ## make a default surface object 85 ## Make a default surface object.
91 tmp = __go_surface__ (ax, "xdata", x, "ydata", y, "zdata", z, "cdata", c); 86 tmp = __go_surface__ (ax, "xdata", x, "ydata", y, "zdata", z, "cdata", c);
92 87
93 set (ax, "view", [0, 90], "box", "off"); 88 set (ax, "view", [0, 90], "box", "off");
94 set (tmp, "FaceColor","flat"); 89 set (tmp, "facecolor","flat");
95 90
96 if (nargout > 0) 91 if (nargout > 0)
97 h = tmp; 92 h = tmp;
98 endif 93 endif
99 94