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// Bar chart demo.
//
import std.string;
import plplot;
//--------------------------------------------------------------------------
// main
//
// Does a simple bar chart, using color fill. If color fill is
// unavailable, pattern fill is used instead (automatic).
//--------------------------------------------------------------------------
int main( char[][] args )
{
string text;
// Parse and process command line arguments
plparseopts( args, PL_PARSE_FULL );
// Initialize plplot
plinit();
pladv( 0 );
plvsta();
plwind( 1980.0, 1990.0, 0.0, 35.0 );
plbox( "bc", 1.0, 0, "bcnv", 10.0, 0 );
plcol0( 2 );
pllab( "Year", "Widget Sales (millions)", "#frPLplot Example 12" );
PLFLT[] pos = [ 0.0, 0.25, 0.5, 0.75, 1.0 ];
PLFLT[] red = [ 0.0, 0.25, 0.5, 1.0, 1.0 ];
PLFLT[] green = [ 1.0, 0.5, 0.5, 0.5, 1.0 ];
PLFLT[] blue = [ 1.0, 1.0, 0.5, 0.25, 0.0 ];
plscmap1l( 1, pos, red, green, blue );
PLFLT[] y0 = [ 5.0, 15.0, 12.0, 24.0, 28.0, 30.0, 20.0, 8.0, 12.0, 3.0 ];
for ( size_t i = 0; i < 10; i++ )
{
plcol1( i / 9.0 );
plpsty( 0 );
plfbox( ( 1980. + i ), y0[i] );
text = format( "%.0f", y0[i] );
plptex( ( 1980. + i + .5 ), ( y0[i] + 1. ), 1.0, 0.0, .5, text );
text = format( "%d", 1980 + i );
plmtex( "b", 1.0, ( ( i + 1 ) * .1 - .05 ), 0.5, text );
}
// Don't forget to call plend() to finish off!
plend();
return 0;
}
void plfbox( PLFLT x0, PLFLT y0 )
{
PLFLT[4] x = [x0, x0, x0 + 1.0, x0 + 1.0];;
PLFLT[4] y = [0.0, y0, y0, 0.0];
plfill( x, y );
plcol0( 1 );
pllsty( 1 );
plline( x, y );
}
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