glwidget.h

Qt平台下使用,C++语言所实现的,球体位置变化,并相应的视角跟踪以及变换.对于学习,OpenGL的glLookAt很有帮助.

#include <qgl.h>


class GLWidget :public QGLWidget
{
	Q_OBJECT
public:
	GLWidget(QWidget* parent);
	~GLWidget();
private:
	
	void drawground();
	void paintGL();
	void resizeGL( int w, int h );
	void initializeGL();


	float		g_Angle;
	float		rad_xz;	
	float		g_elev;
	GLdouble	g_eye[3];
	GLdouble	g_look[3];
	
	double ang;
	void drawobject();
	void drawroad();

	uint type;
	float line_count;
	
private slots:
	void press(QKeyEvent *e);
	void animate();

};