Beispiel #1
0
static plplot_state_type * plplot_state_alloc( const void * init_arg ) {
  plplot_state_type * state = util_malloc( sizeof * state );
  state->stream     = 0;
  {
    const arg_pack_type * arg_pack = arg_pack_safe_cast_const( init_arg );
    state->filename                = util_alloc_string_copy( arg_pack_iget_const_ptr( arg_pack , 0) );
    state->device                  = util_alloc_string_copy( arg_pack_iget_const_ptr( arg_pack , 1) );
    
    plsstrm(state->stream);
    plsdev(state->device);    /* Can this be NULL?? */
    if (strcmp(state->device , "xwin") != 0)
      plsfnam(state->filename);
  }
  state->logx       = false;
  state->logy       = false;
  state->plbox_xopt = util_alloc_string_copy( PLOT_DEFAULT_PLBOX_XOPT );
  state->plbox_yopt = util_alloc_string_copy( PLOT_DEFAULT_PLBOX_YOPT );
  /** This color initialization must be here - do not really understand what for. */
  plscol0(WHITE, 255, 255, 255);
  plscol0(BLACK, 0, 0, 0);
  plfontld(0);
  //plinit();
  return state;
}
Beispiel #2
0
int
main( int argc, char *argv[] )
{
    PLINT digmax, cur_strm, new_strm;
    char  ver[80];

// plplot initialization

// Parse and process command line arguments

    plMergeOpts( options, "x01c options", notes );
    plparseopts( &argc, argv, PL_PARSE_FULL );

// Get version number, just for kicks

    plgver( ver );
    fprintf( stdout, "PLplot library version: %s\n", ver );

// Initialize plplot
// Divide page into 2x2 plots
// Note: calling plstar replaces separate calls to plssub and plinit
    plstar( 2, 2 );

// Select font set as per input flag

    if ( fontset )
        plfontld( 1 );
    else
        plfontld( 0 );

// Set up the data
// Original case

    xscale = 6.;
    yscale = 1.;
    xoff   = 0.;
    yoff   = 0.;

// Do a plot

    plot1( 0 );

// Set up the data

    xscale = 1.;
    yscale = 0.0014;
    yoff   = 0.0185;

// Do a plot

    digmax = 5;
    plsyax( digmax, 0 );

    plot1( 1 );

    plot2();

    plot3();

    //
    // Show how to save a plot:
    // Open a new device, make it current, copy parameters,
    // and replay the plot buffer
    //

    if ( f_name )   // command line option '-save filename'

    {
        printf( "The current plot was saved in color Postscript under the name `%s'.\n", f_name );
        plgstrm( &cur_strm );    // get current stream
        plmkstrm( &new_strm );   // create a new one

        plsfnam( f_name );       // file name
        plsdev( "psc" );         // device type

        plcpstrm( cur_strm, 0 ); // copy old stream parameters to new stream
        plreplot();              // do the save by replaying the plot buffer
        plend1();                // finish the device

        plsstrm( cur_strm );     // return to previous stream
    }

// Let's get some user input

    if ( locate_mode )
    {
        for (;; )
        {
            if ( !plGetCursor( &gin ) )
                break;
            if ( gin.keysym == PLK_Escape )
                break;

            pltext();
            printf( "subwin = %d, wx = %f,  wy = %f, dx = %f,  dy = %f\n",
                gin.subwindow, gin.wX, gin.wY, gin.dX, gin.dY );
            printf( "keysym = 0x%02x, button = 0x%02x, string = '%s', type = 0x%02x, state = 0x%02x\n",
                gin.keysym, gin.button, gin.string, gin.type, gin.state );
            plgra();
        }
    }

// Don't forget to call plend() to finish off!

    plend();
    exit( 0 );
}
Beispiel #3
0
int
main( int argc, const char *argv[] )
{
    char  text[10];
    int   i, j, k, l;
    PLFLT x, y;

// Parse and process command line arguments

    (void) plparseopts( &argc, argv, PL_PARSE_FULL );

// Initialize plplot

    plinit();

    plfontld( 0 );
    for ( l = 0; l < 20; l++ )
    {
        if ( l == 2 )
            plfontld( 1 );
        pladv( 0 );

        // Set up viewport and window

        plcol0( 2 );
        plvpor( 0.15, 0.95, 0.1, 0.9 );
        plwind( 0.0, 1.0, 0.0, 1.0 );

        // Draw the grid using plbox

        plbox( "bcg", 0.1, 0, "bcg", 0.1, 0 );

        // Write the digits below the frame

        plcol0( 15 );
        for ( i = 0; i <= 9; i++ )
        {
            sprintf( text, "%d", i );
            plmtex( "b", 1.5, ( 0.1 * i + 0.05 ), 0.5, text );
        }

        k = 0;
        for ( i = 0; i <= 9; i++ )
        {
            // Write the digits to the left of the frame

            sprintf( text, "%d", base[l] + 10 * i );
            plmtex( "lv", 1.0, ( 0.95 - 0.1 * i ), 1.0, text );
            for ( j = 0; j <= 9; j++ )
            {
                x = 0.1 * j + 0.05;
                y = 0.95 - 0.1 * i;

                // Display the symbols

                plsym( 1, &x, &y, base[l] + k );
                k = k + 1;
            }
        }

        if ( l < 2 )
            plmtex( "t", 1.5, 0.5, 0.5, "PLplot Example 7 - PLSYM symbols (compact)" );
        else
            plmtex( "t", 1.5, 0.5, 0.5, "PLplot Example 7 - PLSYM symbols (extended)" );
    }
    plend();
    exit( 0 );
}