/**********************************?LCD12864曲線顯示*******************************************/
/*********作者：王勝文。QQ：95201972??email：nunk@163.com?希望與大家交流2007。08。03**********/

#include
#include
#include
#include
//#include
#define?Graphic_Clear?0x01???//檫除點
#define?Graphic_Not?0x02?????//反相點
#define?Graphic_Draw?0x03	?//畫點

uchar?j=0i=0;
uchar?r=32;
/***********************在LCD上任意坐標畫點********************************/

void?DrawPoint（uchar?Xuchar?Yuchar?Type）?
{?									//X，Y化點的坐標Type畫點的類型：反相點，檫除點，畫點
????????????????????????????????????????????????????
???uchar?DX?=?（Y?>>?3）;???????????????//計算出屬于哪個字節?
???uchar?BX?=?Y?-?（DX?<???uchar?TempData?=?0;?
????
????
???if?（X?>?63）?
???{?
????chip_select=2;
??????X?-=?64;?
???}?
???else?
???{?
??????chip_select=1;?
???}?

???SetPage（DX）;?????????????//設行地址
???SetColumn（X）;?			//設列地址
????
???TempData?=?ReadData（）;???//讀出所畫點所在字節的內容
????
???switch?（Type）????????????//對該字節進行相應操作
???{?
???????case?Graphic_Clear:
??????????					TempData?&=?~（1<?????????					break;?
??????case?Graphic_Not:
?????????					TempData?^=?（1?<??????????					break;?
??????case?Graphic_Draw:?
??????????					TempData?|=?（1?<							break;
	??default:				break;
???}?
????
???SetPage（DX）;????????????//設置行地址
???SetColumn（X）;??			//設置列地址
???WriteData（TempData）;?	//把修改后的字節送回LCD，達到畫點目的
}?

/********插值法畫任意兩點之間直線的函數，函數中只用加減法，程序運行效率很高**********/

DrawLine（uchar?x1uchar?y1uchar?x2uchar?y2）
{???????????????????????????//x1y1起點坐標；x2y2終點坐標；
????uchar?xy;?
????uchar?d_xd_y;?????	
????char?err=0;
????uchar?temp=0;

????if（y2????d_y=y2-y1;
????if?（d_y==0）
????????{
????????if?（x1>x2）?{x=x1;x1=x2;x2=x;}
????????for?（?x=x1;x<=x2;x++?）?DrawPoint（xy1Graphic_Draw）;
????????}
????else
????????{
????if（x2>=x1）{temp=1;d_x=x2-x1;}else?d_x=x1-x2;
????x=x1;y=y1;DrawPoint（xyGraphic_Draw）;
????if（temp&&（d_y<=d_x））
????????while（x!=x2）
????????????{if（err<0）{x=x+1;err=err+（y2-y）;}
????????????else?{x=x+1;y=y+1;err=err+（y2-y）-（x2-x）;}
????????????DrawPoint（xyGraphic_Draw）;
????????????}
????else?if（temp&&（d_y>d_x））
????????while（y!=y2）
????????????{d_x=x2-x;d_y=y2-y;?
????????????if（err<0）{x=x+1;y=y+1;err=err+d_y-d_x;}
????????????else?{y=y+1;err=err-d_x;}
????????????DrawPoint（xyGraphic_Draw）;
????????????}
????else?if（!temp&&（d_y<=d_x））
????????while（x!=x2）
????????????{d_x=x-x2;d_y=y2-y;?
????????????if（err<0）{x=x-1;err=err+d_y;}
????????????else?{x=x-1;y=y+1;err=err+d_y-d_x;}
????????????DrawPoint（xyGraphic_Draw）;
????????????}
????else?if（!temp?&&（d_y>d_x））
????????while（y!=y2）
????????????{d_x=x-x2;d_y=y2-y;?
????????????if（err<0）{x=x-1;y=y+1;err=err+d_y-d_x;}
????????????else?{y=y+1;err=err-d_x;}
????????????DrawPoint（xyGraphic_Draw）;
????????????}
????????}????
}??????????????????????????????

?屬性????????????大小?????日期????時間???名稱
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?????文件?????106689??2007-11-13?10:26??Proteus中單片機89C51在LCD12864上畫曲線\draw.DSN

?????文件???????1412??2007-11-13?10:26??Proteus中單片機89C51在LCD12864上畫曲線\draw.PWI

?????文件??????20150??2007-11-13?09:38??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line

?????文件???????5241??2007-11-15?15:29??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.c

?????文件???????8460??2007-11-13?09:38??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.hex

?????文件?????????41??2007-11-13?09:38??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.lnp

?????文件??????10007??2007-11-15?15:29??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.LST

?????文件??????22088??2007-11-13?09:38??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.M51

?????文件??????22446??2007-11-15?15:29??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.OBJ

?????文件???????1070??2007-11-21?09:16??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.Opt

?????文件????????219??2007-11-21?09:16??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.plg

?????文件???????2004??2007-11-09?19:04??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line.Uv2

????.......??????1370??2007-11-15?18:51??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line_Opt.Bak

????.......??????2005??2007-11-09?11:00??Proteus中單片機89C51在LCD12864上畫曲線\drawing_line_Uv2.Bak

?????文件???????3728??2007-08-16?14:10??Proteus中單片機89C51在LCD12864上畫曲線\drive_functions.h

?????文件???????1051??2007-08-08?09:47??Proteus中單片機89C51在LCD12864上畫曲線\get_keys.h

?????文件?????106850??2007-08-27?13:09??Proteus中單片機89C51在LCD12864上畫曲線\Last?Loaded?draw.DBK

?????目錄??????????0??2007-11-21?09:16??Proteus中單片機89C51在LCD12864上畫曲線

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???????????????314831????????????????????18