How hard is this?

Question

For the life of me, I can't understand why this is so hard.
All I want to do is grab an XML feed and display one node in
a repeated list.
I select the XML feed, add a region, and add a repeat list.
No brainer, right? Wrong. I get a single bullet item flash on the
screen and go away.
I've gotten this to work by copying a Spry sample and
deconstructing to the point where it fits my data, but that's
ridiculous and not the way to do it.
What am I doing wrong?
:grimey

Answer 1

when it comes to the math part, it all depends on what library you're using. If you plan on building a 3D game with your own engine and everything, you have a lot of math to do. Vector math, matrix math, all that good stuff. But if you're using something like OpenGL, alot of it has been done for you. In Java (not including Java3D), even doing a 3D roataion takes some math. But in OpenGL there's already a rotation method in there. Like:
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
    glTranslatef(-1.5f,0.0f,-6.0f);
    glRotatef(rtri,0.0f,1.0f,0.0f); // rotating part
    glBegin(GL_TRIANGLES);
    glColor3f(1.0f,0.0f,0.0f);
    glVertex3f(0.0f,1.0f,0.0f);
    glVertex3f(-1.0f,-1.0f,1.0f);
    glVertex3f(1.0f,-1.0f,1.0f);
    glVertex3f(0.0f,1.0f,0.0f);
    glVertex3f(1.0f,-1.0f,1.0f);
    glVertex3f(1.0f,-1.0f,-1.0f);
    glVertex3f(0.0f,1.0f,0.0f);
    glVertex3f(1.0f,-1.0f,-1.0f);
    glVertex3f(-1.0f,-1.0f,-1.0f);
    glVertex3f( 0.0f, 1.0f, 0.0f);
    glVertex3f(-1.0f,-1.0f,-1.0f);
    glVertex3f(-1.0f,-1.0f, 1.0f);
    glEnd();...would rotate a 3D pyramid (as long as rtri is updated)