#include <iostream>
#include <gl\glut.h>
#include <gl\GL.h>
#include <gl\GLU.h>
#include "base.h"
using namespace std;
int x, y;
void display(
void)
{
glClear(GL_COLOR_BUFFER_BIT);
glPushMatrix();
//glBegin(GL_TRIANGLES);
glBegin(GL_QUADS);
glVertex2d(x, y);
glVertex2d(x +
35, y);
glVertex2d(x +
35, y +
35);
glVertex2d(x, y +
35);
glEnd();
glPopMatrix();
//glFlush();
glutSwapBuffers();
}
void init()
{
glClearColor (0.0,
0.0,
0.0,
0.0);
glColor3f(1.0,
1.0,
1.0);
x = y =
0;
}
void reshape(
int w,
int h)
{
double d = MapHeight /
600.0 /
2;
double dw = w /
2.0 *
d;
double dh = h /
2.0 *
d;
glViewport(0,
0,w,h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(-dw, dw, -
dh, dh);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glutPostRedisplay();
}
void onTimer(
int value)
{
printf("dfd\n");
x +=
10;
// 重绘
glutPostRedisplay();
glutTimerFunc(50, onTimer,
0);
}
int main(
int argc,
char**
argv)
{
glutInit(&
argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|
GLUT_RGB);
// glutInitWindowSize(MapWidth,MapHeight);
double radio = MapWidth *
1.0 /
MapHeight;
glutInitWindowSize(600 * radio,
600);
glutInitWindowPosition(0,
0);
glutCreateWindow("simple");
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutTimerFunc(50, onTimer,
0);
init();
glutMainLoop();
//system("pause");
}
转载于:https://www.cnblogs.com/litstrong/archive/2012/04/19/2457824.html
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