Can a Site Pad Slope?

[dgraue]

I have three levels of parking below grade. I used the Pad tool to cut this into the Site Plan but part of the Lower Level 3 parking slab needs to slope. Can a Pad slope? Should I be using another technique to do this?

[Dimitri Harvalias]

The simple answer is no. A pad can only be level. You can use the pad to create your 'excavation to your base level and then use in sloped slabs to create the slab on grade (c/w slab and backfill base if you want). In your sections you can use filled regions to make up the difference.

[dgraue]

Thanks for your reply.

[knurrebusk]

This is close to one of my most nagging posts!!
A pad should be able to slope/curve/overlap period!!!!!

Revit is far to advanced in the year 2005 to be reduced to this state! concerning sites.

[Chad Smith]

Yet again, another site problem.
I wish usable site tools were coming after Structure and that MEP was delayed until site tools were finished.

[mtogni]

I wish usable site tools were coming after Structure and that MEP was delayed until site tools were finished.
I totally agree... I always ask to myself what reason is to go ahead without fix or improve the problems or the wishes of the users.
MEP is good but I want (pardon... would) Revit give me volume room, windows area in schedules room (not that almost unuseful thing of the glazing report (who need???) in area analisys), sloped pad, curved ramp with a decent behavior, walls cut accordingly by level cut, more speed... just to say something.

[steve.70285]

I need to revive this post because I'm constantly dealing with sloped lot projects that need site tools that are lacking in Revit, even though it kicks ( I ) everywhere else.;)

Sloping Site Pads that are able to blend into topo and the use of lines (straight and curved) within topo to create toe of slope between two elevation points would help immensely.

[mtogni]

not to talk about a tool to cut (as a tunnel) toposurface...

[J. Grouchy]

In a previous (I swear this is true...I'm not imagining it) build I found that there was the option to have a side "define slope" in the sketch (the same way that roofs work), but I noticed the toposurface did not properly 'react' to the slope of the pad. Now, in the latest build, I see those options are there when sketching but are grayed out.

this post is from when I discovered it:
http://forums.augi.com/showthread.php?p=140846#post140846

[steve.70285]

...I found that there was the option to have a side "define slope" in the sketch (the same way that roofs work),
Wouldn't it be great to create topography around a project that sloped out with multiple slopes (just like the roof tool). It wouldn't intersect within itself but it would to surrounding topography... or at least allow join geometry to create a line used to cut the topo back.

(I'm starting to think this post belongs in the wishlist forum)

[tbarnesarc]

A workaround could be use an "in-place family" that could fill that void. I agree about a slope slab though. It is definitely needed.

[mmodernc]

You can save a topo as a dwg, load it into a massing family, place the massing family into revit file and convert faces to roof panels=solid topo

[steve.70285]

save a topo as a dwg, load it into a massing family, place the massing family into revit file and convert faces
That's interesting...would it generate contours?

I'm starting to play around with SketchUp's new sandbox tool for manipulating existing topo. Here are attachments where I created a brand new ground model in SketchUP and created a topography within Revit.

Don't know where this will lead but it's intriguing

[John Anderson]

Steve,

Could you then make a massing object from the Revit Contour.
I would like to see this if successful.

Please post picture of the massing model if you can.

Thanks,
John

[steve.70285]

Could you then make a massing object from the Revit Contour.
John, I've not used ground topo as massing before nor do I no how to create one using ACIS or Polymesh. I tried to create a massing family by loading a dwg into the massing editor as mmodernc suggested but it only explodes 2d which leaves nothing in the family.

What would massing of topo allow you to accomplish?

[John Anderson]

Anybody have any success converting a polyface mesh to a solid, then importing that solid into a mass? I see the following options from the internet but would like to hear about any others or any personal success:

How to convert a polyface mesh entity into a 3d solid?

1. Export the source polyface mesh object to a stl file. The best way to do this is to use STL4PolyFaceMeshes or alternativelly STL4Cad application.

2. Convert the resulting stl face data into a 3d solid object. The best and the only way to do this is to use STL2Solid or alternativelly STL2Cad.

OR

The only way that I know to do this is via another program called FormZ. It will take a .3ds file, convert the meshes to ACIS solids and then save it as a .dwg.

Thanks,

[robmorfin]

In this link you can find a lisp routine that will convert any mesh to a solid in AutoCAD:

<A href="http://www.accustudio.com/marketplace/free/m2s.zip">
http://www.accustudio.com/marketplace/free/m2s.zip


An going back to the main subject, pads should be able to have a slope, how do you expect us to show the fill below or cut above the sloped floors created with the floor tool?

If this cannot be done, for programming reasons or whatever, there should be an option to be able to step vertically when editing points under edit surface, actually I think this would be a much better idea because pads can behave really weird sometimes and also are locked with the building and the site at the same time, so if you need to move, rotate, mirror, etc. the whole model the pads don't allow you unless you unselect them and then you have to create them from scratch again.

[John Anderson]

robomorfin,


I don't believe M2S will work with polyface meshes.

I tried the other solution and had some success, but realize the result was not what I was hoping for. The faces are converted to solids but the solid is a group of triangles as is the mesh.

Ideally would like to be able to create a smooth undulating solid form from survey point data or mesh conversion. Can any program do this? Autodesk 3D Civil? Form-Z? anybody know?

[Arnel Aguel]

Hi John I've been looking into the solution also of converting polyface into solid because if there is any successful way to do this that will give unlimited boundary to free form modeling in Revit.

Imagine you can do all sort of free from from max/viz or any other modeler for that matter and be able to link in Revit parametrically that will be awesome.....

[anthony.67953]

Hey Autodesk! The world is round and hilly. Can you help us?

[Matt Brennan]

I agree this should be on the wish list. You could always use massings (extrusions, blends, sweeps) for this type of job…

[iru69]

I was needing a sloping pad today, real bad.

Just want to make sure the Factory is aware that we really need some help on those site tools - just in case they thought we were kidding the last time it came up. ;)

I don't need a civil engineering package, just some basic fixes and additions to the modeling tools.