Note: Interpretation of the type word is dependent on the class of the seed.
This topic describes hole seeds of class 00h When you don't want to use the seed system to display graphics information (that is, when you want to create object-oriented scenery to fill in an area), place a hole seed at the specified seed level and coordinate.
Only the altitude field has any meaning in the hole seed definition. The value specified in the altitude field establishes the ground altitude for the area covered by the hole seed, unless the value is overridden by manually specified altitude levels in the object design within the hole seed area.