[ucgui] 仪表盘函数

 /*
 仪表盘
 */
 void DrawArcScale(void)
 {
     int x0 = ;
     int y0 = ;
     int i;
     char ac[];
     GUI_SetBkColor(GUI_WHITE);
     GUI_Clear();
     GUI_SetPenSize(  );
     GUI_SetTextMode(GUI_TM_TRANS);
     GUI_SetFont(&GUI_FontComic18B_ASCII);
     GUI_SetColor( GUI_BLACK );
     GUI_DrawArc( x0,y0,, ,-,  );
     //GUI_Delay(1000);
     for (i=; i<= ; i++)
     {
         float a = (-+i*)*3.1415926/;
         int x = -*cos(a)+x0;
         int y = -*sin(a)+y0;
         if (i% == )
         GUI_SetPenSize(  );
         else
         GUI_SetPenSize(  );
         GUI_DrawPoint(x,y);
         if (i% == )
         {
             x = -*cos(a)+x0;
             y = -*sin(a)+y0;
             sprintf(ac, "%d", *i);
             GUI_SetTextAlign(GUI_TA_VCENTER);
             GUI_DispStringHCenterAt(ac,x,y);
         }
     }
 }