我想用OpenGL的glu方法绘制圆柱。
怎样指定2个点的三维坐标,画出这个圆柱体?(半径已知)
请帮助我,谢谢!!:P
怎样指定2个点的三维坐标,画出这个圆柱体?(半径已知)
请帮助我,谢谢!!:P
解决方案 »
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The gluCylinder function draws a cylinder.void gluCylinder(
GLUquadricObj * qobj,
GLdouble baseRadius,
GLdouble topRadius,
GLdouble height,
GLint slices,
GLint stacks
);
Parameters
qobj
The quadric object (created with gluNewQuadric).
baseRadius
The radius of the cylinder at z = 0.
topRadius
The radius of the cylinder at z = height.
height
The height of the cylinder.
slices
The number of subdivisions around the z-axis.
stacks
The number of subdivisions along the z-axis.
Res
The gluCylinder function draws a cylinder oriented along the z-axis. The base of the cylinder is placed at z = 0, and the top at z = height. Like a sphere, a cylinder is subdivided around the z-axis into slices, and along the z-axis into stacks.Notice that if topRadius is set to zero, then this routine will generate a cone.If the orientation is set to GLU_OUTSIDE (with gluQuadricOrientation), then any generated normals point away from the z-axis. Otherwise, they point toward the z-axis.If texturing is turned on (with gluQuadricTexture): texture coordinates are generated so that t ranges linearly from 0.0 at z = 0 to 1.0 at z = height; and s ranges from 0.0 at the positive y-axis, to 0.25 at the positive x-axis, to 0.5 at the negative y-axis, to 0.75 at the positive x-axis, and back to 1.0 at the positive y-axis.QuickInfo
Windows NT: Use version 3.5 and later.
Windows: Use Windows 95 and later.
Windows CE: Unsupported.
Header: Declared in glu.h.
Import Library: Link with glu32.lib.See Also
gluDisk, gluNewQuadric, gluPartialDisk, gluQuadricOrientation, gluQuadricTexture, gluSphere
int InitGL(GLvoid) // 此处开始对OpenGL进行所有设置
{
quadratic=gluNewQuadric(); // 创建二次几何体
gluQuadricNormals(quadratic, GLU_SMOOTH); // 使用平滑法线
gluQuadricTexture(quadratic, GL_TRUE); // 使用纹理
}
int DrawGLScene(GLvoid) // 从这里开始进行所有的绘制
{
gluCylinder(quadratic,0.6f,0.6f,0.4f,32,32);//画圆柱
}