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I have created a pad from a closed 3d polygon, which varies in height along a curve on my model. 


When I update my site model, one edge of the pad acts as I expect it to - the road ramps down to meet the edge of the pad.


However, I then expect the inside of the pad to form ground level, and for the site levels on the other side of the pad to meet the edge of the pad - which doesn't' happen? 


Instead, I get a cliff edge.... can anyone help me with what I'm missing? 

Screen Shot 2017-09-19 at 11.02.07.png

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There are a number of things that can cause this.


  • Check that your site model settings have the correct use site modifiers on...can't tell you how many times I've placed a modifier in a drawing and this setting was incorrect.
  • Check your grade limits as these will dictate how the grades interface with the modifier.
  • Also take a look at your 3d display settings, does the modifier apply to the proposed?

A place to start, let me know how you make out.



site model.png

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