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Thread: The dsh Terrain Building Test
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01-21-2012, 08:20 PM #1
Gerry,
I agree with the thrust of what you say - there is no such thing as Terrain Perimeter Elevation.
But, I'm not sure that we are talking semantics here, but I see things a bit differently.
I think of all levels set in relation to chiefs zero floor level - nothing to do with "sea level" - does a negative elevation mean the building is below sea level? - not very realistic.
I can have relative levels (relative to Chiefs zero floor level) by specifying minus levels for below Chiefs zero floor level and positive levels for above Chiefs zero floor level.
I can have absoulte levels by specifying a Pad Elevation at an actual elevation and then terrain levels at actual elevations (but, everything still remains relative!).
If there is any confusion, have a look at the 3 plans I attached in a previous post - no mention of sea level, not a wave in sight (or should that be site).
Oh, one other thing, when you say: "if you have no terrain , terrain level is assumed to be zero, if you have a terrain, it's whatever the elevation data says it is (default 0) , always in relation to 0 (sea level ).
Once again, what has it got to do with sea level?
In these situations isn't terrain level whatever the formula is (eg: -6" - floor thickness below Chiefs zero), and not zero.
I think we are agreeing but just seeing things from a different frame of reference or relativity.
The main point being that I have no confusion about terrain levels and things all work great as they are!Glenn
Chief X5
www.glennwoodward.com.au
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01-21-2012, 09:03 PM #2
think of all levels set in relation to chiefs zero floor level - nothing to do with "sea level" - does a negative elevation mean the building is below sea level? - not very realistic
Glenn:
chief's manual discusses sea level
in the real world all absolute terrain data is based on sea level
by default chief works with relative height values for the terrain elevations (set via elevation data such as regions)
then it auto-calcs the "pad elevation"
when auto-calc is off and a "pad elevation" is entered that value is an absolute value per sea
with auto calc on the house "rides" the terrain like a BOAT
the house elevations are relative within the BOAT, yet the boat is at an ABSOLUTE value in relation to the elevation data
and the "pad elevation" per sea level
with auto calc off the connection between the house and terrain is broken
after that each MUST be set separately
if the elevation data (such as regions) is changed and the "pad elevation" is left at zero the house remains at sea level
with auto calc off and adding no elevation data (such as regions) the TP will remain at its default of 0" sea level
change the "pad elevation" to 50' and the house will be in the air at 50' above sea level
read the sea level references in the manual
LewLast edited by lbuttery; 01-21-2012 at 09:28 PM.
Lew Buttery
Castle Golden Design - "We make dreams visible"
Lockport, NY
716-434-5051
www.castlegoldendesign.com
lbuttery at castlegoldendesign.com
CHIEF X5 (started with v9.5)
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01-21-2012, 09:20 PM #3
Glenn:
I have attached the manual's references to sea level
LewLew Buttery
Castle Golden Design - "We make dreams visible"
Lockport, NY
716-434-5051
www.castlegoldendesign.com
lbuttery at castlegoldendesign.com
CHIEF X5 (started with v9.5)