?? guipolyr.c
字號(hào):
/*
*********************************************************************************************************
* uC/GUI
* Universal graphic software for embedded applications
*
* (c) Copyright 2002, Micrium Inc., Weston, FL
* (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
* 礐/GUI is protected by international copyright laws. Knowledge of the
* source code may not be used to write a similar product. This file may
* only be used in accordance with a license and should not be redistributed
* in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File : GUIPolyR.c
Purpose : Polygon rotation
----------------------------------------------------------------------
*/
#include <math.h>
#include "GUI.h"
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* GUI_RotatePolygon
*/
void GUI_RotatePolygon(GUI_POINT* pDest, const GUI_POINT* pSrc, int NumPoints, float Angle) {
int j;
float fcos = cos(Angle);
float fsin = sin(Angle);
for (j=0; j<NumPoints; j++) {
int x = (pSrc+j)->x;
int y = (pSrc+j)->y;
(pDest+j)->x = x * fcos + y * fsin;
(pDest+j)->y = -x * fsin + y * fcos;
}
}
/*************************** End of file ****************************/
?? 快捷鍵說(shuō)明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號(hào)
Ctrl + =
減小字號(hào)
Ctrl + -