Mercurial > hg > octave-nkf
annotate scripts/plot/meshgrid.m @ 14846:460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Example: func() => func ()
* dynamic.txi, func.txi, oop.txi, var.txi, embedded.cc, fortdemo.cc,
funcdemo.cc, paramdemo.cc, stringdemo.cc, unwinddemo.cc, Array.cc, Array.h,
CColVector.cc, CDiagMatrix.h, CMatrix.cc, CNDArray.cc, CRowVector.cc,
CSparse.cc, CmplxGEPBAL.cc, EIG.cc, MSparse.cc, MatrixType.cc,
Sparse-op-defs.h, Sparse-perm-op-defs.h, Sparse.cc, Sparse.h,
SparseCmplxCHOL.cc, SparseCmplxCHOL.h, SparseCmplxLU.cc, SparseCmplxQR.cc,
SparseCmplxQR.h, SparseQR.cc, SparseQR.h, SparsedbleCHOL.cc, SparsedbleCHOL.h,
SparsedbleLU.cc, SparsedbleLU.h, base-lu.cc, cmd-hist.cc, dColVector.cc,
dDiagMatrix.h, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, dbleCHOL.cc,
dbleGEPBAL.cc, dim-vector.cc, eigs-base.cc, f2c-main.c, fCColVector.cc,
fCDiagMatrix.h, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fCmplxGEPBAL.cc,
fColVector.cc, fDiagMatrix.h, fEIG.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc,
file-ops.cc, file-stat.cc, floatCHOL.cc, floatGEPBAL.cc, idx-vector.h,
lo-specfun.cc, lo-sysdep.cc, mx-inlines.cc, oct-binmap.h, oct-convn.cc,
oct-md5.cc, oct-mem.h, oct-rand.cc, oct-syscalls.cc, randgamma.c, randmtzig.c,
sparse-base-chol.cc, sparse-base-chol.h, sparse-base-lu.cc, sparse-dmsolve.cc,
tempname.c, curl.m, divergence.m, randi.m, dlmwrite.m, edit.m, getappdata.m,
what.m, getarchdir.m, install.m, installed_packages.m, repackage.m,
unload_packages.m, colorbar.m, figure.m, isosurface.m, legend.m, loglog.m,
plot.m, plot3.m, plotyy.m, polar.m, __errplot__.m, __ghostscript__.m,
__marching_cube__.m, __plt__.m, __scatter__.m, semilogx.m, semilogy.m,
trimesh.m, trisurf.m, demo.m, test.m, datetick.m, __delaunayn__.cc,
__dsearchn__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__lin_interpn__.cc, __magick_read__.cc, __pchip_deriv__.cc, balance.cc,
bsxfun.cc, ccolamd.cc, cellfun.cc, chol.cc, daspk.cc, dasrt.cc, dassl.cc,
dmperm.cc, eig.cc, eigs.cc, fftw.cc, filter.cc, find.cc, kron.cc, lookup.cc,
lsode.cc, matrix_type.cc, md5sum.cc, mgorth.cc, qr.cc, quad.cc, rand.cc,
regexp.cc, symbfact.cc, tril.cc, urlwrite.cc, op-bm-bm.cc, op-cdm-cdm.cc,
op-cell.cc, op-chm.cc, op-cm-cm.cc, op-cm-scm.cc, op-cm-sm.cc, op-cs-scm.cc,
op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc, op-fcdm-fcdm.cc,
op-fcm-fcm.cc, op-fdm-fdm.cc, op-fm-fm.cc, op-int.h, op-m-m.cc, op-m-scm.cc,
op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-range.cc, op-s-scm.cc,
op-s-sm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc,
op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc,
op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-str.cc, op-struct.cc, bitfcns.cc,
data.cc, debug.cc, dynamic-ld.cc, error.cc, gl-render.cc, graphics.cc,
graphics.in.h, load-path.cc, ls-hdf5.cc, ls-mat5.cc, ls-mat5.h,
ls-oct-ascii.cc, ls-oct-ascii.h, mex.cc, mk-errno-list, oct-map.cc, oct-obj.h,
oct-parse.yy, octave-config.in.cc, ov-base-int.cc, ov-base-mat.cc, ov-base.cc,
ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-cell.cc, ov-class.cc,
ov-class.h, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-flt-cx-mat.cc,
ov-flt-re-mat.cc, ov-intx.h, ov-range.h, ov-re-mat.cc, ov-re-sparse.cc,
ov-str-mat.cc, ov-struct.cc, ov-usr-fcn.h, ov.h, pr-output.cc, pt-id.cc,
pt-id.h, pt-mat.cc, pt-select.cc, sparse.cc, symtab.cc, symtab.h, syscalls.cc,
toplev.cc, txt-eng-ft.cc, variables.cc, zfstream.cc, zfstream.h, Dork.m,
getStash.m, myStash.m, Gork.m, Pork.m, myStash.m, getStash.m, myStash.m,
getStash.m, myStash.m, fntests.m: Use Octave coding convention for
cuddled parenthis in function calls with empty argument lists.
| author | Rik <octave@nomad.inbox5.com> |
|---|---|
| date | Sun, 08 Jul 2012 11:28:50 -0700 |
| parents | f3d52523cde1 |
| children | eaab03308c0b |
| rev | line source |
|---|---|
|
14138
72c96de7a403
maint: update copyright notices for 2012
John W. Eaton <jwe@octave.org>
parents:
13263
diff
changeset
|
1 ## Copyright (C) 1996-2012 John W. Eaton |
| 2313 | 2 ## |
| 3 ## This file is part of Octave. | |
| 4 ## | |
| 5 ## Octave is free software; you can redistribute it and/or modify it | |
| 6 ## under the terms of the GNU General Public License as published by | |
| 7016 | 7 ## the Free Software Foundation; either version 3 of the License, or (at |
| 8 ## your option) any later version. | |
| 2313 | 9 ## |
| 10 ## Octave is distributed in the hope that it will be useful, but | |
| 11 ## WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 ## General Public License for more details. | |
| 14 ## | |
| 15 ## You should have received a copy of the GNU General Public License | |
| 7016 | 16 ## along with Octave; see the file COPYING. If not, see |
| 17 ## <http://www.gnu.org/licenses/>. | |
| 1713 | 18 |
| 3407 | 19 ## -*- texinfo -*- |
|
10793
be55736a0783
Grammarcheck the documentation from m-files.
Rik <octave@nomad.inbox5.com>
parents:
9245
diff
changeset
|
20 ## @deftypefn {Function File} {[@var{xx}, @var{yy}, @var{zz}] =} meshgrid (@var{x}, @var{y}, @var{z}) |
| 5378 | 21 ## @deftypefnx {Function File} {[@var{xx}, @var{yy}] =} meshgrid (@var{x}, @var{y}) |
| 3439 | 22 ## @deftypefnx {Function File} {[@var{xx}, @var{yy}] =} meshgrid (@var{x}) |
| 5717 | 23 ## Given vectors of @var{x} and @var{y} and @var{z} coordinates, and |
|
9209
923c7cb7f13f
Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents:
7017
diff
changeset
|
24 ## returning 3 arguments, return three-dimensional arrays corresponding |
| 5717 | 25 ## to the @var{x}, @var{y}, and @var{z} coordinates of a mesh. When |
| 26 ## returning only 2 arguments, return matrices corresponding to the | |
| 27 ## @var{x} and @var{y} coordinates of a mesh. The rows of @var{xx} are | |
| 28 ## copies of @var{x}, and the columns of @var{yy} are copies of @var{y}. | |
| 29 ## If @var{y} is omitted, then it is assumed to be the same as @var{x}, | |
| 30 ## and @var{z} is assumed the same as @var{y}. | |
| 5642 | 31 ## @seealso{mesh, contour} |
| 3407 | 32 ## @end deftypefn |
| 1713 | 33 |
| 2314 | 34 ## Author: jwe |
| 35 | |
| 5378 | 36 function [xx, yy, zz] = meshgrid (x, y, z) |
| 1713 | 37 |
| 5717 | 38 if (nargin == 0 || nargin > 3) |
| 6046 | 39 print_usage (); |
| 5717 | 40 endif |
| 41 | |
| 42 if (nargin < 2) | |
| 1713 | 43 y = x; |
| 44 endif | |
| 5717 | 45 |
| 6813 | 46 ## Use repmat to ensure that the result values have the same type as |
| 47 ## the arguments. | |
| 48 | |
| 5717 | 49 if (nargout < 3) |
| 4030 | 50 if (isvector (x) && isvector (y)) |
| 6813 | 51 xx = repmat (x(:).', length (y), 1); |
| 52 yy = repmat (y(:), 1, length (x)); | |
| 1713 | 53 else |
| 54 error ("meshgrid: arguments must be vectors"); | |
| 55 endif | |
| 56 else | |
| 5717 | 57 if (nargin < 3) |
| 58 z = y; | |
| 59 endif | |
| 60 if (isvector (x) && isvector (y) && isvector (z)) | |
| 61 lenx = length (x); | |
| 62 leny = length (y); | |
| 63 lenz = length (z); | |
| 6813 | 64 xx = repmat (repmat (x(:).', leny, 1), [1, 1, lenz]); |
| 65 yy = repmat (repmat (y(:), 1, lenx), [1, 1, lenz]); | |
| 5717 | 66 zz = reshape (repmat (z(:).', lenx*leny, 1)(:), leny, lenx, lenz); |
| 67 else | |
| 6813 | 68 error ("meshgrid: arguments must be vectors"); |
| 5717 | 69 endif |
| 1713 | 70 endif |
| 71 | |
| 72 endfunction | |
|
13263
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
73 |
|
14363
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
74 |
|
13263
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
75 %!test |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
76 %! x = 1:2; |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
77 %! y = 1:3; |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
78 %! z = 1:4; |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
79 %! [XX, YY, ZZ] = meshgrid (x, y, z); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
80 %! assert (size_equal (XX, YY, ZZ)); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
81 %! assert (ndims (XX), 3); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
82 %! assert (size (XX), [3, 2, 4]); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
83 %! assert (XX(1) * YY(1) * ZZ(1), x(1) * y(1) * z(1)); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
84 %! assert (XX(end) * YY(end) * ZZ(end), x(end) * y(end) * z(end)); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
85 |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
86 %!test |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
87 %! x = 1:2; |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
88 %! y = 1:3; |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
89 %! [XX, YY] = meshgrid (x, y); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
90 %! assert (size_equal (XX, YY)); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
91 %! assert (ndims (XX), 2); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
92 %! assert (size (XX), [3, 2]); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
93 %! assert (XX(1) * YY(1), x(1) * y(1)); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
94 %! assert (XX(end) * YY(end), x(end) * y(end)); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
95 |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
96 %!test |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
97 %! x = 1:3; |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
98 %! [XX1, YY1] = meshgrid (x, x); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
99 %! [XX2, YY2] = meshgrid (x); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
100 %! assert (size_equal (XX1, XX2, YY1, YY2)); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
101 %! assert (ndims (XX1), 2); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
102 %! assert (size (XX1), [3, 3]); |
|
a156263b5509
Add tests for meshgrid and ndgrid.
Kai Habel <kai.habel@gmx.de>
parents:
11523
diff
changeset
|
103 %! assert (XX1, XX2); |
|
14363
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
104 %! assert (YY1, YY2); |
|
f3d52523cde1
Use Octave coding conventions in all m-file %!test blocks
Rik <octave@nomad.inbox5.com>
parents:
14138
diff
changeset
|
105 |