* Receives the value of the ODFDOM attribute representation <code>Dr3dProjectionAttribute</code> , See {@odf.attribute dr3d:projection}
*
* @return - the <code>String</code> , the value or <code>null</code>, if the attribute is not set and no default value defined.
*/
public String getDr3dProjectionAttribute() {
Dr3dProjectionAttribute attr = (Dr3dProjectionAttribute) getOdfAttribute(OdfDocumentNamespace.DR3D, "projection");
if (attr != null) {
return String.valueOf(attr.getValue());
}
return Dr3dProjectionAttribute.DEFAULT_VALUE;
}