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/*
* This file is part of XForms.
*
* XForms is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1, or
* (at your option) any later version.
*
* XForms is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with XForms; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
/*
* Demo showing the use of xyplot overlay, plot key and
* PostScript output.
*
* This file is part of xforms package
* T.C. Zhao and M. Overmars
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "include/forms.h"
#include <stdlib.h>
#include <math.h>
/**** Forms and Objects ****/
typedef struct
{
FL_FORM * fff;
void * vdata;
long ldata;
FL_OBJECT * xyplot;
} FD_fff;
extern FD_fff * create_form_fff( void );
extern void init_xyplot( FD_fff * );
/***************************************
***************************************/
int
main( int argc,
char * argv[ ] )
{
FD_fff *fd_fff;
fl_initialize( &argc, argv, "FormDemo", 0, 0 );
fd_fff = create_form_fff( );
/* fill-in form initialization code */
init_xyplot( fd_fff );
/* show the first form */
fl_show_form( fd_fff->fff, FL_PLACE_MOUSE | FL_FREE_SIZE, FL_TRANSIENT,
"XYPlot Overlay" );
fl_do_forms( );
if ( fl_object_ps_dump( fd_fff->xyplot, "test.ps" ) >= 0 )
fprintf( stderr, "PostScript output test.ps written\n" );
return 0;
}
/***************************************
***************************************/
void
init_xyplot( FD_fff * fd_fff )
{
int i;
float xx[ 20 ],
yy[ 20 ];
for ( i = 0; i <= 10; i++ )
{
xx[ i ] = i;
yy[ i ] = exp( - ( xx[ i ] - 5 ) * ( xx[ i ] - 5 ) / 8 );
}
fl_set_xyplot_data( fd_fff->xyplot, xx, yy, 8,
"Plot Title", "X-Axis", "Y|Axis");
fl_set_xyplot_ybounds( fd_fff->xyplot, 0, 1.1 );
fl_set_xyplot_xbounds( fd_fff->xyplot, 0, 10 );
fl_add_xyplot_overlay( fd_fff->xyplot, 1, xx, yy, 11, FL_YELLOW );
fl_set_xyplot_overlay_type( fd_fff->xyplot, 1, FL_LINEPOINTS_XYPLOT );
fl_set_xyplot_interpolate( fd_fff->xyplot, 1, 2, 0.1 );
fl_add_xyplot_text( fd_fff->xyplot, 0.5, 1.0, "Gaussian\nDistribution",
FL_ALIGN_RIGHT, FL_WHITE );
fl_set_xyplot_key( fd_fff->xyplot, 0, "Original" );
fl_set_xyplot_key( fd_fff->xyplot, 1, "Overlay" );
fl_set_xyplot_key_position( fd_fff->xyplot, 9.8, 1.08,
FL_ALIGN_LEFT_BOTTOM );
}
/***************************************
***************************************/
FD_fff *
create_form_fff( void )
{
FL_OBJECT *obj;
FD_fff *fdui = fl_calloc( 1, sizeof *fdui );
fdui->fff = fl_bgn_form( FL_NO_BOX, 370, 310 );
fl_add_box( FL_UP_BOX, 0, 0, 370, 310, "" );
fdui->xyplot = obj = fl_add_xyplot( FL_IMPULSE_XYPLOT, 10, 20, 350, 260,
"An XYPlot with overlay" );
fl_set_object_lalign( obj, FL_ALIGN_BOTTOM | FL_ALIGN_INSIDE );
fl_set_object_lsize( obj, FL_NORMAL_SIZE );
fl_set_object_boxtype( obj, FL_DOWN_BOX );
fl_set_object_color( obj, FL_BLACK, FL_GREEN );
obj = fl_add_button( FL_HIDDEN_BUTTON, 10, 10, 350, 290, "" );
fl_set_button_shortcut( obj,"qQ", 0 );
fl_end_form( );
return fdui;
}
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