Building pad with slopped edge Topography

[malcolmlambson]

I am trying to create a building pad which adjusts the surrounding topography into a sloped structure, rather than the typical 90 degree edge.

The specific project is over a very large piece of land with multiple houses across the site with each one needing its own building pad. I want to be able to have the building pad interact with the topography to create a sloped harmonious grading where the two meet.

Does anyone know how this can be achieved?

Thanks

[Viveka_CD]

Hi @malcolmlambson

I see that you are visiting as a new member. Welcome to the Autodesk Community! 

Can you send us a screenshot of the project?

See the discussion HERE and lets me know if that helps!

A link to a AU class HERE to make hard-scape elements that follow site topography.

Please mark this response as "Accept as Solution" if it answers your question. Kudos gladly accepted.

Regards,

[ToanDN]

Can you have multiple building pads, smaller at the bottom, to create stepped topography cut?

[Anonymous]

yes - and building pads CANNOT overlap. they can touch edges just not overlap......

[Anonymous]

i think you may have two stages here..... deal with the pads first......then deal with the grading with the 'grading' tool - or am i missing something?

[malcolmlambson]

I'm not sure that would do what I want it to. I'm basically wondering if the building pad can be programmed to interact with the topography surrounding it to create a sloped edge rather than the 90 degree edge that is created normally..

Excuse the crude images: This is what I want the pad to do...

[Anonymous]

not sure thats possible..... there are two ways the topo can be altered after the pad.

1. by using grading tool 2. by editing topo surface point by point - if there are no points at the pad edge then sim-ly place new ones at the level you want / need?

[chrisplyler]

The PAD can't control the surrounding topography. But it's pretty easy to make the surrounding topography grade up to the pad. Give me just a minute and I'll post a short video....

[chrisplyler · Accepted solution]

Okay. Here you go.

[ToanDN]

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@Anonymous wrote:

yes - and building pads CANNOT overlap. they can touch edges just not overlap......

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Below is what I meant.

[Haider_of_Sweden]

After you split the surface, you get new points.

When you merge the surfaces again, they get absorbed or vanish. Why?

[ToanDN]

@Haider_of_Sweden  Did you mean to ask @chrisplyler?

[chrisplyler]

If he did...I have no idea WHY that happens. Because that's the way some developer decided it should happen, I guess.

[Haider_of_Sweden]

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@chrisplyler wrote:

If he did...I have no idea WHY that happens. Because that's the way some developer decided it should happen, I guess.

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Yeah, probably so. In a way, its good to have the topology cleaned up, but some other times, one might want to keep them.

I'll have to export and reimport DWG and then import the points from there then.

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@ToanDN wrote:

@Haider_of_Sweden  Did you mean to ask @chrisplyler?

I meant to ask anyone willing to answer 😉

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[chrisplyler]

Logically speaking - if you WANT to keep separate edges with coincident nodes - then why are you merging them back together at all anyway?

[Haider_of_Sweden]

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@chrisplyler wrote:

Logically speaking - if you WANT to keep separate edges with coincident nodes - then why are you merging them back together at all anyway?

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I want to merge the chunks together for visual purposes.

The strength of this split technique is that you get in between verts placed exactly where you split. This is something you might want to do. Doing it manually is no option because you have no idea what exact height should be where for each vert.

One could say that there should be an option: a checkbox for "clean verts on merge" and let the user decide whether to remove the cut-verts to keep them. Until then, DWG export-import and create points from import is the solution for me.

Then of course. If you WANT to keep separate edge, then you simply don't merge 🙂

[chrisplyler]

For visual purposes? You mean that you don't want to see the split line?

That's easy enough...

[Haider_of_Sweden]

That was cool, @chrisplyler

How did you get the level annotation for each line? Couldn't find that.

[ToanDN]

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@Haider_of_Sweden wrote:

That was cool, @chrisplyler

How did you get the level annotation for each line? Couldn't find that.

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Massing & Site > Label Contours