我有以下的code，以画点的数组，但只汲取一点在中心。怎样绘制使用OpenGL的2D点阵列？

 闪烁NumberOfPoints = 10;
GLfloat×〔2]，Y [2];

在glBegin（GL_POINTS）;

的for（int i = 0; I＆LT; NumberOfPoints ++ I）
{
    glVertex2f（X [I]中，值Y [i]）;

}
glEnd（）;
 

解决方案

你在哪里设置值X [0]，X [1]，Y [0]和Y [1]？

如果这只是画一个点为中心，这听起来像中的值设置为0所有四个这些变量。请确保您参考他们在您的来电gVertex2f（）之前初始化它们的值。

I have the following code to draw an array of points but it only draws one point in the center. How can I draw an array of 2D points using OpenGL?

GLint NumberOfPoints = 10;
GLfloat x[2],y[2];

glBegin( GL_POINTS );

for ( int i = 0; i < NumberOfPoints; ++i )
{
    glVertex2f( x[i], y[i] );

}
glEnd();

Where are you setting the values for x[0], x[1], y[0], and y[1]?

If it's only drawing one point in the center, it sounds like the values are set to 0 for all four of those variables. Be sure to initialize their values before you reference them in your call to gVertex2f().