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- /* PIE.C: Create sample pie chart. */
- #include <conio.h>
- #include <string.h>
- #include <graph.h>
- #include <pgchart.h>
-
- #define MONTHS 12
-
- typedef enum {FALSE, TRUE} boolean;
-
- float far value[MONTHS] =
- {
- 33.0, 27.0, 42.0, 64.0,106.0,157.0,
- 182.0,217.0,128.0, 62.0, 43.0, 36.0
- };
- char far *category[MONTHS] =
- {
- "Jan", "Feb", "Mar", "Apr",
- "May", "Jun", "Jly", "Aug",
- "Sep", "Oct", "Nov", "Dec"
- };
- short far explode[MONTHS] = {0};
-
- main()
- {
- chartenv env;
- int mode = _VRES16COLOR;
-
- /* Set highest video mode available */
- while(!_setvideomode( mode ))
- mode--;
- if(mode == _TEXTMONO)
- return( 0 );
-
- /* Initialize chart library and a default pie chart */
- _pg_initchart();
- _pg_defaultchart( &env, _PG_PIECHART, _PG_PERCENT );
-
- /* Add titles and some chart options */
- strcpy( env.maintitle.title, "Good Neighbor Grocery" );
- env.maintitle.titlecolor = 6;
- env.maintitle.justify = _PG_RIGHT;
- strcpy( env.subtitle.title, "Orange Juice Sales" );
- env.subtitle.titlecolor = 6;
- env.subtitle.justify = _PG_RIGHT;
- env.chartwindow.border = FALSE;
-
- /* Parameters for call to _pg_chartpie are:
- *
- * env - Environment variable
- * category - Category labels
- * value - Data to chart
- * explode - Separated pieces
- * MONTHS - Number of data values
- */
-
- if(_pg_chartpie( &env, category, value,
- explode, MONTHS ))
- {
- _setvideomode( _DEFAULTMODE );
- _outtext( "Error: can't draw chart" );
- }
- else
- {
- getch();
- _setvideomode( _DEFAULTMODE );
- }
- return( 0 );
- }
-