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Modifying site model to wrap around retaining walls and stairs


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One of the images below shows a typical site I get for design work. It is a house site

I was a structural landscaper for 37 years and specialised in steep sites.

Now I seem to get designs on steep sites. Go Figure 🙂 

I am having difficulty getting the site model to work to the proposed landscape after placing the walls and stairs. 

I know I can draw 3D polys. But this doesn't give me cut and fill. Or does it??

The second one is one I am working on at the moment. I have tried to manipulate the existing site model to match the stairs and sandstone walls. Not with any success.

I am after a quick, effective method of doing this.

 

THANKS for your help.

Bernard.

 

 

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  • Vectorworks, Inc Employee

Bernard, I would highly recommend the pad with retaining edge feature as an option in the site modifier list. You can find the description of how this works in the online user help page. I would recommend using the "footprint" of the separate step portions and let the retaining edge become the modifier that helps wrap the steps where you want the terrain to conform to the shape of the steps. You can reshape the handles of the retaining edge to make the grade connection to the steps exactly where you want. Each pad with retaining edge modifier can then report its own cut/fill if you want that too.

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1 minute ago, Eric Gilbey, PLA said:

Bernard, I would highly recommend the pad with retaining edge feature as an option in the site modifier list. You can find the description of how this works in the online user help page. I would recommend using the "footprint" of the separate step portions and let the retaining edge become the modifier that helps wrap the steps where you want the terrain to conform to the shape of the steps. You can reshape the handles of the retaining edge to make the grade connection to the steps exactly where you want. Each pad with retaining edge modifier can then report its own cut/fill if you want that too.

 

Thanks Eric.

 

Your post came in as I was typing my last reply.

 

I was thinking of this. But I would have so many pads to do, it would take a long time. And time is money. Maybe I just have to get quicker at creating pads 🙂 

 

Is it an option to draw the stairs and walls first? Then draw the outline of the pads around them in top view to create them?

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3 minutes ago, Jonathan Pickup said:

if you create gabion basket and place a pad at the bottom, then group them together, you can copy these all over the site model. Pads should work even when part of a group

Thanks Jonathan.

 

Great idea!

 

So I would have 2. One with a pad for the base basket and 1 without for the baskets to be stacked on top of the base basket?

Edited by BJRobinson
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  • Vectorworks, Inc Employee

Another thought I had was two alternative options...a 3D polygon in the Site-DTM-Modifier class which traces the edges of the stair system entirely. This could act as the “retaining edge” though not having the bottom pad to make it retaining if you did want it not dig to the bottom of each stone or gabion basket, you could also trace the bottoms as one 3D polygon in the same class. The other alternatives was to place site-modifying stakes with the desired elevation entered for each position where you want the grade to meet the stair material or gabion basket face.

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