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112 lines
3.7 KiB
112 lines
3.7 KiB
/***************************************************************************
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kmesh.cc
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-------------------
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begin : Sun Jun 25 2000
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copyright : (C) 2000 by Kamil Dobkowski
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email : kamildobk@friko.onet.pl
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <octave/oct.h>
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#include <iostream.h>
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#include <errno.h>
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#include "octave-common.h"
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DEFUN_DLD (kmesh, args, ,
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" usage: kmesh(z)\n"
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" kmesh(x,y,z)\n"
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"\n"
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"See also: ksetapp, ksetaxes, kadd, kremove, kremoveall, kaddaxes, kremoveaxes, kplot, kimage, kcontour, ksetmatrix" )
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{
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octave_value_list result(1, octave_value(-1.0));
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int nargin = args.length();
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if ( nargin != 1 && nargin != 3 ) {
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error("wrong number of arguments");
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return result;
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}
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int socket_fd = plot_connect( appNumber(), NULL, NULL );
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if ( socket_fd == -1 && errno < sys_nerr && errno >= 0 ) {
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error( sys_errlist[errno] );
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return result;
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}
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int dataset_number = -1;
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//plot_remove_all_datasets( socket_fd, axesNumber() );
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if ( nargin == 1 ) {
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// Simple surface
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Matrix m = args(0).matrix_value();
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dataset_number = plot_add_dataset( socket_fd, axesNumber(), PlotSurface );
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setMatrix( socket_fd, dataset_number, 0, m );
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}
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else
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if ( nargin == 3 ) {
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Matrix x = args(0).matrix_value();
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Matrix y = args(1).matrix_value();
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Matrix z = args(2).matrix_value();
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int rows = z.rows();
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int cols = z.cols();
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if ( x.rows() == rows && x.cols() == cols && y.rows() == rows && y.cols() == cols ) {
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dataset_number = plot_add_dataset( socket_fd, axesNumber(), PlotFigure );
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// Figure
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setMatrix( socket_fd, dataset_number, 0, x );
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setMatrix( socket_fd, dataset_number, 1, y );
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setMatrix( socket_fd, dataset_number, 2, z );
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} else {
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// Surface
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// normalize x to row vector
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if ( x.cols() == 1 ) { Matrix temp = x.transpose(); x = Matrix(); x = temp; }
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else
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if ( x.rows() > 1 && x.cols() > 1 ) {
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error(" x must be a vector !" );
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plot_disconnect( socket_fd );
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return result;
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}
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// normalize y to column vector
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if ( y.rows() == 1 ) { Matrix temp = y.transpose(); y = Matrix(); y = temp; }
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else
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if ( y.rows() > 1 && y.cols() > 1 ) {
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error(" y must be a vector !" );
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plot_disconnect( socket_fd );
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return result;
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}
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if ( rows != y.rows() ) {
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error(" rows (z) must be the same as length (y)");
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plot_disconnect( socket_fd );
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return result;
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}
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if ( cols != x.cols() ) {
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error("colums (z) must be the same as length (x)");
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plot_disconnect( socket_fd );
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return result;
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}
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dataset_number = plot_add_dataset( socket_fd, axesNumber(), PlotSurface );
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setMatrix( socket_fd, dataset_number, 0, x );
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setMatrix( socket_fd, dataset_number, 1, y );
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setMatrix( socket_fd, dataset_number, 2, z );
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}
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}
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plot_disconnect( socket_fd );
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return octave_value_list(1, octave_value((double )dataset_number) );
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}
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