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Tue, Oct 25, 2005 at 11:48:30 PM | Relative Levels and AHD

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psymon


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I have scoured the forums and have not found an answer to this, I was wondering if anyone can help. We have a project with a survey drawing showing AHD's (Australian Height Datums), these are in effect relative levels. The levels are say 55.50 for the ground level. This is in effect 55500mm above sea level. How do I set up my ground floor level to show 55.55 and the consequent levels above it as say 58.50? I have read a thing in the help about using the "relocate this project" command. Curiously it is supposed to be located under the settings command under "location and coordinates". However this item does not exist on my Version 8.1 menu so I can not experiment with this. What to do? Post edited on 2005-10-25 23:49:17

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Wed, Oct 26, 2005 at 12:24:35 AM | RE: Relative Levels and AHD

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eldados


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go to elevation view pick up all your levels (I assume your first one is on 0) and move them up 5500mm HTH.

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Wed, Oct 26, 2005 at 12:26:52 AM | RE: Relative Levels and AHD

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ecarson


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First of all you'll need to make sure that your project is located at designed level. Use the "Relocated this project" and read help to do this. The best practice I would say is to create a new level family, 1. Call up the propertises of the level notation, 2. Click Edit/new 3. Duplicate 4. Rrename to "AHD level" 5. Under the constraints parameter change the 'elevation base' value to 'Shared' 6. Ok 7. OK Now you have got one elevation tag family that will refernce the project levels, and the other will refernce the buildings level. Let me know how you go. Ewan

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Wed, Oct 26, 2005 at 12:30:47 AM | RE: Relative Levels and AHD

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eldados


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hmmm didn't read right, thought he wanted his levels to so correct height 5500 not 55... Smile

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Wed, Oct 26, 2005 at 1:00:26 AM | RE: Relative Levels and AHD

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psymon


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o.k. worked it out. I have to make a new level head that has a "shared" parameter and I have to chage the units to be meters so I get 55.50 so I can get my RL's The "relocate this project" command is now under the tools bar. Thank you all for the help.

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