public float getPositionX(int vertex) {
        if (!hasPositions()) {
            throw new IllegalStateException("mesh has no positions");
        }
        
        checkVertexIndexBounds(vertex);
        
        return m_vertices.getFloat(vertex * 3 * SIZEOF_FLOAT);
    }
public float getPositionX ( int vertex ) { if ( ! hasPositions ( ) ) { throw new IllegalStateException ( "mesh has no positions" ) ; } checkVertexIndexBounds ( vertex ) ; return m_vertices . getFloat ( vertex * 3 * SIZEOF_FLOAT ) ; }
Returns the x-coordinate of a vertex position.

@param vertex the vertex index
@return the x coordinate