TargetSpatialReference is optional. The default is null. Note: only one of: o TargetSpatialReference o TargetWkid, and TargetVcsWkid if applicable o TargetWkt, and TargetVcsWkt if applicable needs be set. If the TargetSpatialReference is set, the Wkids and Wkts are ignored. If the TargetSpatialReference is null, then the Wkids are used. If the Wkids are 0 (or less), then the Wkts are used.