【STM32】 LCD画坐标系和图象

只看该作者 · 2018-7-11 13:56

鼓捣了一晚上搞出一个基于原子哥LCD库V3.0的画坐标系图象的几个函数。
使用方法如下：
- void LCD_Plot_Init(u16 width, u16 height, u16 xUnit, u16 yUnit, u16 xOrigin, u16 yOrigin, u8 GridSwitch); //最后一个参数GridSwitch用来设置是否画栅格
- void RefreshPlot(u16 NewValue);  //直接输入一个数就可以画图了
支持函数有
- typedef struct tagPlot_Init
{
u16 xOrigin;
u16 yOrigin;
u16 xUnit;
u16 yUnit;
u16 height;
u16 width;
u8 GridSwitch;
} Plot_Init;
void DrawFrame(Plot_Init PLOT_INIT);       //用来绘制坐标系的外框
void DP(u16 x,u16 y,u16 color);       //快速画点其实就是给LCD_Fast_DrawPoint()套了个壳

以上部分定义在lcd.h中在lcd.c中定义了两个全局变量，数组PLOT_NUM[]用来存放显示数据和坐标系参数结构体PLOT_INIT

具体实现代码如下
void DP(u16 x,u16 y,u16 color)
{
  LCD_Fast_DrawPoint(x,y,color);
}

void LCD_Plot_Init(u16 width, u16 height, u16 xUnit, u16 yUnit, u16 xOrigin, u16 yOrigin, u8 GridSwitch){//×&oslash;±ê&Iuml;&micro;&sup3;&otilde;&Ecirc;&frac14;&raquo;&macr;
u16 i;
PLOT_INIT.GridSwitch=GridSwitch;
PLOT_INIT.height=height;
PLOT_INIT.width=width;
PLOT_INIT.xOrigin=xOrigin;
PLOT_INIT.yOrigin=yOrigin;
PLOT_INIT.xUnit=xUnit;
PLOT_INIT.yUnit=yUnit;
return;
}

void DrawFrame(Plot_Init PLOT_INIT){
u16 i;
//PLOT_INIT.width=width;
if(PLOT_INIT.GridSwitch){
  for(i=PLOT_INIT.width/PLOT_INIT.xUnit;i>0;i--){
  POINT_COLOR=LIGHTBLUE;
  LCD_DrawLine(PLOT_INIT.xOrigin+i*PLOT_INIT.xUnit,PLOT_INIT.yOrigin,PLOT_INIT.xOrigin+i*PLOT_INIT.xUnit,PLOT_INIT.yOrigin-PLOT_INIT.height);
  POINT_COLOR=WHITE;
  LCD_Draw_Circle(PLOT_INIT.xOrigin+i*PLOT_INIT.xUnit,PLOT_INIT.yOrigin,2);
  }
  for(i=PLOT_INIT.height/PLOT_INIT.yUnit;i>0;i--){
  POINT_COLOR=LIGHTBLUE;
  LCD_DrawLine(PLOT_INIT.xOrigin,PLOT_INIT.yOrigin-i*PLOT_INIT.yUnit,PLOT_INIT.xOrigin+PLOT_INIT.width,PLOT_INIT.yOrigin-i*PLOT_INIT.yUnit);
  POINT_COLOR=WHITE;
  LCD_Draw_Circle(PLOT_INIT.xOrigin,PLOT_INIT.yOrigin-i*PLOT_INIT.yUnit,2);
  }
}
//Draw Frame Ready

LCD_DrawLine(PLOT_INIT.xOrigin,PLOT_INIT.yOrigin,PLOT_INIT.xOrigin,PLOT_INIT.yOrigin-PLOT_INIT.height);
LCD_DrawLine(PLOT_INIT.xOrigin,PLOT_INIT.yOrigin,PLOT_INIT.xOrigin+PLOT_INIT.width,PLOT_INIT.yOrigin);
LCD_DrawLine(PLOT_INIT.xOrigin+PLOT_INIT.width,PLOT_INIT.yOrigin,PLOT_INIT.xOrigin+PLOT_INIT.width,PLOT_INIT.yOrigin-PLOT_INIT.height);
LCD_DrawLine(PLOT_INIT.xOrigin,PLOT_INIT.yOrigin-PLOT_INIT.height,PLOT_INIT.xOrigin+PLOT_INIT.width,PLOT_INIT.yOrigin-PLOT_INIT.height);
//Draw frame ready

POINT_COLOR=RED;
LCD_Draw_Circle(PLOT_INIT.xOrigin,PLOT_INIT.yOrigin,4);
POINT_COLOR=WHITE;

return;
}
void RefreshPlot(u16 NewValue){
u16 width=PLOT_INIT.width;
u16 height=PLOT_INIT.height;
u16 xOrigin=PLOT_INIT.xOrigin;
u16 yOrigin=PLOT_INIT.yOrigin;
u8 NewValueString[10];
u8 LastValueString[10];
u16 LastValue=*(PLOT_NUM+*PLOT_NUM);
u16 i;
sprintf((char*)NewValueString,&quot;%d&quot;,NewValue);
sprintf((char*)LastValueString,&quot;%d&quot;,*(PLOT_NUM+*PLOT_NUM));

DrawFrame(PLOT_INIT);

//&Iacute;&frac14;&Iuml;ó&sup2;&raquo;&Acirc;ú&Ograve;&raquo;&AElig;&Aacute;&Auml;&raquo;&Ecirc;±
if(*PLOT_NUM!=width){
  POINT_COLOR=BLACK;//&iquest;&ordf;&Ecirc;&frac14;&sup2;&Aacute;&sup3;&yacute;
  for(i=*PLOT_NUM;i>0;i--)DP(xOrigin+i,yOrigin-*(PLOT_NUM+i),BLACK);//&sup2;&Aacute;&sup3;&yacute;&Ccedil;ú&Iuml;&szlig;
  LCD_ShowString(xOrigin+*PLOT_NUM+1,yOrigin-LastValue-16,120,12,12,LastValueString);//&sup2;&Aacute;&sup3;&yacute;&Ecirc;&yacute;&Ouml;&micro;
  LCD_Draw_Circle(xOrigin+*PLOT_NUM+1,yOrigin-LastValue,1);//&sup2;&Aacute;&sup3;&yacute;&sup1;&acirc;±ê
  LCD_Draw_Circle(xOrigin+*PLOT_NUM+1,yOrigin-LastValue,2);//&sup2;&Aacute;&sup3;&yacute;&sup1;&acirc;±ê

  *(PLOT_NUM+*PLOT_NUM+1)=NewValue;//&cedil;ü&ETH;&Acirc;&acute;&yacute;&Iuml;&Ocirc;&Ecirc;&frac34;&micro;&Auml;&Ecirc;&yacute;&frac34;&Yacute;
  (*PLOT_NUM)++;//&cedil;ü&ETH;&Acirc;&Ecirc;&yacute;&frac34;&Yacute;&Ecirc;&yacute;&Auml;&iquest;

  POINT_COLOR=WHITE;//&iquest;&ordf;&Ecirc;&frac14;&raquo;&aelig;&Ouml;&AElig;
  for(i=*PLOT_NUM;i>0;i--){DP(xOrigin+i,yOrigin-*(PLOT_NUM+i),WHITE);}//&raquo;&aelig;&Ouml;&AElig;&Ccedil;ú&Iuml;&szlig;
  LCD_ShowString(xOrigin+*PLOT_NUM+1,yOrigin-NewValue-16,120,12,12,NewValueString);//&raquo;&aelig;&Ouml;&AElig;&Ecirc;&yacute;&Ouml;&micro;
  POINT_COLOR=RED;LCD_Draw_Circle(xOrigin+*PLOT_NUM+1,yOrigin-NewValue,1);//&raquo;&aelig;&Ouml;&AElig;&sup1;&acirc;±ê
  POINT_COLOR=RED;LCD_Draw_Circle(xOrigin+*PLOT_NUM+1,yOrigin-NewValue,2);//&raquo;&aelig;&Ouml;&AElig;&sup1;&acirc;±ê

}else{

  //&Iacute;&frac14;&Iuml;ó&Ograve;&Ntilde;&Acirc;ú&Ograve;&raquo;&AElig;&Aacute;&Auml;&raquo;&Ecirc;±&pound;&not;&iquest;&ordf;&Ecirc;&frac14;&Otilde;&ucirc;&para;&Icirc;&Ograve;&AElig;&para;&macr;&Ccedil;ú&Iuml;&szlig;
  POINT_COLOR=BLACK;//&iquest;&ordf;&Ecirc;&frac14;&sup2;&Aacute;&sup3;&yacute;
  for(i=width;i>0;i--)DP(xOrigin+i,yOrigin-*(PLOT_NUM+i),BLACK);//&sup2;&Aacute;&sup3;&yacute;&Iacute;&frac14;&Iuml;ó&micro;&atilde;
  LCD_ShowString(xOrigin+width,yOrigin-LastValue-16,120,12,12,LastValueString);//&raquo;&aelig;&Ouml;&AElig;&Ecirc;&yacute;&Ouml;&micro;
  LCD_Draw_Circle(xOrigin+width,yOrigin-LastValue,1);//&sup2;&Aacute;&sup3;&yacute;&sup1;&acirc;±ê
  LCD_Draw_Circle(xOrigin+width,yOrigin-LastValue,2);//&sup2;&Aacute;&sup3;&yacute;&sup1;&acirc;±ê
  for(i=0;i<width;i++)*(PLOT_NUM+i+1)=*(PLOT_NUM+i+2);*(PLOT_NUM+width)=NewValue; //&cedil;ü&ETH;&Acirc;&acute;&yacute;&Iuml;&Ocirc;&Ecirc;&frac34;&micro;&Auml;&Ecirc;&yacute;&frac34;&Yacute;

  POINT_COLOR=WHITE;//&iquest;&ordf;&Ecirc;&frac14;&raquo;&aelig;&Ouml;&AElig;
  for(i=width;i>0;i--)DP(xOrigin+i,yOrigin-*(PLOT_NUM+i),WHITE);//&raquo;&aelig;&Ouml;&AElig;&Iacute;&frac14;&Iuml;ó&micro;&atilde;
  LCD_ShowString(xOrigin+width,yOrigin-NewValue-16,120,12,12,NewValueString);//&raquo;&aelig;&Ouml;&AElig;&Ecirc;&yacute;&Ouml;&micro;
  POINT_COLOR=RED;LCD_Draw_Circle(xOrigin+width,yOrigin-NewValue,1);//&raquo;&aelig;&Ouml;&AElig;&sup1;&acirc;±ê
  POINT_COLOR=RED;LCD_Draw_Circle(xOrigin+width,yOrigin-NewValue,2);//&raquo;&aelig;&Ouml;&AElig;&sup1;&acirc;±ê
}//&cedil;ü&ETH;&Acirc;&Euml;ù&Iuml;&Ocirc;&Ecirc;&frac34;&micro;&Auml;&Ecirc;&yacute;&frac34;&Yacute;&sup2;&cent;&raquo;&shy;&ETH;&Acirc;&micro;&Auml;&Ecirc;&yacute;&frac34;&Yacute;&micro;&atilde;

return;
}

【STM32】 LCD画坐标系和图象

相关下载

相关帖子