procedureopenGLdraw;
begin
glEnable(GL_LINE_SMOOTH); //设置反走样
glHint(GL_LINE_SMOOTH_HINT,GL_NICEST); //设置反走样
glColor4f(1.0,1.0,0.0,1.0); // 设置黄色,透明度为100%
glLineWidth(10); // 设置线的宽度
glBegin(GL_LINE_STRIP); // 画线
glvertex3f(-3,0.5,0);
glVertex3f(0,0.8,0);
glVertex3f(3,-0.5,0);
glEnd(); //
end;