void simple_chart()
//=================
// Display a simple column chart
{
chartenv env;
_pg_defaultchart( &env, _PG_COLUMNCHART, _PG_PLAINBARS );
strcpy( env.maintitle.title, "Column Chart" );
_pg_chart( &env, categories, values, NUM_VALUES );
}
main()
{
chartenv env;
_setvideomode( _VRES16COLOR );
_pg_initchart();
_pg_defaultchart( &env,
_PG_COLUMNCHART, _PG_PLAINBARS );
strcpy( env.maintitle.title, "Column Chart" );
_pg_chart( &env, categories, values, NUM_VALUES );
getch();
_setvideomode( _DEFAULTMODE );
}
void more_charts()
//================
// Display several sample charts on different areas of the screen
{
chartenv env;
// use only left half of screen
_pg_defaultchart( &env, _PG_COLUMNCHART, _PG_PLAINBARS );
strcpy( env.maintitle.title, "Column Chart" );
env.chartwindow.x1 = 0;
env.chartwindow.y1 = 0;
env.chartwindow.x2 = xmid - 1;
env.chartwindow.y2 = ymax - 1;
_pg_chart( &env, categories, values, NUM_VALUES );
// use top right corner
_pg_defaultchart( &env, _PG_BARCHART, _PG_PLAINBARS );
strcpy( env.maintitle.title, "Bar Chart" );
env.chartwindow.x1 = xmid;
env.chartwindow.y1 = 0;
env.chartwindow.x2 = xmax - 1;
env.chartwindow.y2 = ymid - 1;
env.legend.place = _PG_BOTTOM;
_pg_chartms( &env, categories, values, NUM_SERIES,
NUM_VALUES, NUM_VALUES, labels );
// use lower right corner
_pg_defaultchart( &env, _PG_PIECHART, _PG_NOPERCENT );
strcpy( env.maintitle.title, "Pie Chart" );
env.chartwindow.x1 = xmid;
env.chartwindow.y1 = ymid;
env.chartwindow.x2 = xmax - 1;
env.chartwindow.y2 = ymax - 1;
_pg_chartpie( &env, categories,
values, explode, NUM_VALUES );
}
