How to create a half Cylinder in Three js?
<p>I´m very new to three js and I want to create a half Cylinder as roof. </p>

<pre><code> var geometry = new THREE.CylinderGeometry(100,100,150);
 var material = new THREE.MeshNormalMaterial();
 var cylinder = new THREE.Mesh( geometry, material);
 scene.add(cylinder);
</code></pre>

<p>This is the Basic Cylinder but unfortunately I couldn´t find an specific answer to a half cylinder yet. 
Is it possible to create this with vertices?</p>