*
* The importance factor is computed by checking if an object is within
* the viewbox and/or the extended version of the viewbox.
*
* @param string $sObj SQL variable name of object to weight the importance
*
*
* The importance factor is computed by checking if an object is within
* the viewbox and/or the extended version of the viewbox.
*
* @param string $sObj SQL variable name of object to weight the importance
*