- 目錄第四講 單片機驅(qū)動彩色液晶屏 控制RA8889軟件:繪圖第六講 單片機驅(qū)動彩色液晶屏 控制RA8889軟件:顯示文字：Part2.外接字庫
第七講 單片機驅(qū)動彩色液晶屏 控制RA8889軟件:顯示文字：Part3.自建字庫
第八講 單片機驅(qū)動彩色液晶屏 控制RA8889軟件:顯示圖片
第九講 單片機驅(qū)動彩色液晶屏 控制RA8889軟件:認識顯存并進行讀、寫、復制
第十講 單片機驅(qū)動彩色液晶屏 控制RA8889軟件:圖像運算
第十一講 單片機驅(qū)動彩色液晶屏 控制RA8889軟件:播放avi視頻
第十二講 單片機驅(qū)動彩色液晶屏 如何打包bin檔
第十三講 單片機驅(qū)動彩色液晶屏 bin檔的燒錄方法
如何通過RA8889 / RA8876內(nèi)建的圖形驅(qū)動引擎來繪圖？
RA8889內(nèi)建豐富的圖形繪制函數(shù)，包括：畫線、畫框、矩形、三角形、橢圓形、填色等等，各種常用的幾何圖形均包含了。
相比采用專用的GUI來說繪圖速度會更快，比如繪制一個矩形，調(diào)用以下API即可，相當簡單！
void Draw_Square_Fill(unsigned long ForegroundColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2);
實例：
Draw_Square_Fill(0xFF0000,0,0,799,479);
作用：繪制一個800x480的填充矩形，硬件加速，相比GUI軟件填充會快很多！常用繪圖功能：
（1）打點void putPixel(unsigned short x,unsigned short y,unsigned long color);
（2）直線void Draw_Line(unsigned long LineColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2);
（3）三角形void Draw_Triangle(unsigned long ForegroundColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2,unsigned short X3,unsigned short Y3);
void Draw_Triangle_Fill(unsigned long ForegroundColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2,unsigned short X3,unsigned short Y3);函數(shù)名后面加上“_Fill”表示填充，下同。
（4）矩形
void Draw_Square(unsigned long ForegroundColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2);
void Draw_Square_Fill(unsigned long ForegroundColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2);
（5）圓弧倒角矩形void Draw_Circle_Square(unsigned long ForegroundColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2,unsigned short R,unsigned short Y_R);
void Draw_Circle_Square_Fill(unsigned long ForegroundColor,unsigned short X1,unsigned short Y1,unsigned short X2,unsigned short Y2,unsigned short R,unsigned short Y_R);
（6）圓形void Draw_Circle(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short R);
void Draw_Circle_Fill(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short R);
（7）橢圓形void Draw_Ellipse(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short X_R,unsigned short Y_R);
void Draw_Ellipse_Fill(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short X_R,unsigned short Y_R);
（8）圓弧形void Draw_Left_Up_Curve(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short X_R,unsigned short Y_R);
void Draw_Left_Down_Curve(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short X_R,unsigned short Y_R);
void Draw_Right_Up_Curve(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short X_R,unsigned short Y_R);
void Draw_Right_Down_Curve(unsigned long ForegroundColor,unsigned short XCenter,unsigned short YCenter,unsigned short X_R,unsigned short Y_R);上方幾個函數(shù)名后面加“_Fill”表示填充功能。
這些繪圖API十分簡潔，即使采用SPI串口方式與RA8889/RA8876進行通信，速度也是極快！也因此采用STM32F103C6T6 / STM32F103C8T6來作為主控MCU，也是也十分輕松！當然更低端的51單片機一樣可以作為控制！
第四講 THE END
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