我有一个以窗口屏幕为中心的形状。目前,窗口大小调整保持不变(相同的宽度和高度)。在调整大小时使其适合窗口并保持其纵横比的最佳方法是什么?
const int WIDTH = 490;
const int HEIGHT = 600;
/**
* render scene
*/
void renderScene(void)
{
//clear all data on scene
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//set white bg color
glClearColor(1, 1, 1, 1);
glColor3ub(153, 153, 255);
glBegin(GL_POLYGON);
glVertex2f(60, 310);
glVertex2f(245, 50);
glVertex2f(430, 310);
glVertex2f(245, 530);
glEnd();
glutSwapBuffers();
}
/**
* reshape scene
*/
void reshapeScene(GLint width, GLint height)
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glViewport(0, 0, width, height);
gluOrtho2D(0, width, height, 0);
glMatrixMode(GL_MODELVIEW);
glutPostRedisplay();
}
/**
* entry point
*/
int …Run Code Online (Sandbox Code Playgroud)