Originally Posted by
bergerud
I have to comment on these "numbers". The depth is certainly important and is an absolute number. The height, on the other hand, is not an absolute number. It is a percentage. Normally, when a pattern is created, it has a length, width, depth, and a height which puts the highest point at the top of the board. There is no real number for this initial height, it is just 100% of what it is. If you change the height to 50, it will drop by 1/2.
If a pattern's length or width is altered, the height is automatically also altered. For example, if one takes a pattern and scales the length and/or width down by 1/2, the height also drops to 1/2 of what it was. If you want to scale the top of the pattern back to where it was, you would have to change the height to 200. Also, if you change the depth of a pattern, the height also drops. For example, if you double the depth, you would have to change the height to 200 to get the pattern back up to the surface.
The percentage one has to use to compensate for altering a pattern depends on how the pattern was altered and so, is not an absolute number. For lithos, the depth number, of course, is very important and a rule of thumb for depths makes sense. The height, on the other hand, is relative to the specific pattern and there cannot be a rule of thumb for that. It just needs to be adjusted so the pattern comes to the top. (You could always choose 999!)
I hope this make sense.