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Forums >> Community >> Newbies >> problems with levels on topo surface

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Thu, Feb 11, 2010 at 11:25:42 AM | problems with levels on topo surface




Joined: Thu, Nov 6, 2008
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I am having a few issues with a site surface i am trying to create.

I have imported a jpeg site survey, scaled it so it is sized correctly but the datum on the survey is 50m.

I have created a topo surface having manually detailed the levels based on the levels on the survey.

But when i link my houses i want to place on the site at different levels, they appear at completely the wrong level as the houses will no doubt be based on a 00.00m level and i want to specify exactly at what level they appear.

Furthermore, all the levels which I have not detailed seem to default to 00.00 which creates a very funny site surface as the ground is varying from 00m to 50m and looks like a scene from the Himalayas!

Rather than individually adjusting the spot levels to make them relative to 00.00m, is there a way of resolving this and then placing the houses (presumably on pads) at specific levels...??



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Mon, Feb 22, 2010 at 10:43:22 AM | problems with levels on topo surface




Joined: Fri, Nov 7, 2008
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Easiest way would be to delete any levels which you have no detailed and then will not be an issue

for the pad I would create a level at 50m and label it GRND or Datum and give it an offset of 150 or whatever your pad needs

and then set your pad to that level instead of level 0


- Just trying to help out while I wait in the office for my renders to complete

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Mon, Feb 22, 2010 at 6:11:48 PM | problems with levels on topo surface




Joined: Thu, Jun 12, 2008
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You may look into changing the Z coordinate of your Project Base Point. Making a change to this variable can allow you to have the finish floor on your level marker to say 0 while that same height for your grade elevation could be 50. You might want to experiment with this cautiously though as it can have implications for the positions of linked files etc. HTH.

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