topic Re: Draw a pattern or design like lattice in Revit Architecture Forum

Draw a pattern or design like lattice

Anonymous — Fri, 08 May 2020 12:30:04 GMT

Hi, I am trying to draw/extrude pattern in walls pls find attached. Some are marked red square and blue colours.

Thanks.

Re: Draw a pattern or design like lattice

hmunsell — Fri, 08 May 2020 13:07:54 GMT

Couple different ways you can do that.

Create an In-Place Model
Duplicate the default railing Panel-Glass and edit the panel
- this would require you to put a short "railing" in the model to show.
place a piece of wall and edit the profile (not preferred)

Re: Draw a pattern or design like lattice

Anonymous — Fri, 08 May 2020 13:27:44 GMT

will you guide me or share a video for it?

If you guide for the first two methods separately that will be more helpful.

@hmunsell

Re: Draw a pattern or design like lattice

constantin.stroescu — Fri, 08 May 2020 13:37:11 GMT

take a look at these two examples:

with walls
with Component Model in Place

https://knowledge.autodesk.com/community/screencast/c7ed08e0-dc38-4c3e-bc28-f832d11a0657

https://knowledge.autodesk.com/community/screencast/e49bdb36-43af-49ff-95d2-6a4b114919dd

Re: Draw a pattern or design like lattice

Anonymous — Fri, 08 May 2020 13:43:05 GMT

Another option for the railing details is to create a curtain panels, as the pattern is repeated. Hmunsell's railing solution is also worth consideration. I would avoid modelling in place, or editing wall profiles, as this kind of modelling substantially slows down the model (and increases size).

For the other moulded decorations, these can be modelled in place, or create a wall based family. Consider if you actually need them to be modelled. I would suggest a line based detail family for elevations, or insert decals for rendering purposes.

Re: Draw a pattern or design like lattice

hmunsell — Fri, 08 May 2020 14:01:54 GMT

looks like @constantin.stroescu beat me to it.... LOL.

Nice video BTW :-).

Re: Draw a pattern or design like lattice

Anonymous — Fri, 08 May 2020 14:43:27 GMT

I saw both videos also tried both methods.

Files are not importing properly only showing only straight lines are showing. ( also showing errors)

also tried many different files also different format dwg dxf. ( files are opening properly in AutoCAD )

please attach your Arabic clipped file.

Is there any pre-processing required to import file in Revit.

errors are --

the line is too short
cannot have overlapping lines
Highlighted lines overlap. Lines may not form closed loops. total warning 70878

@constantin.stroescu

Re: Draw a pattern or design like lattice

Anonymous — Fri, 08 May 2020 14:47:33 GMT

Could you please provide any guidance video, tutorial on how to do it.

@ TimELZ49

Re: Draw a pattern or design like lattice

constantin.stroescu — Fri, 08 May 2020 15:12:56 GMT

errors are --

the line is too short
cannot have overlapping lines
Highlighted lines overlap. Lines may not form closed loops. total warning 70878

all the warnings are true:

Revit do not accept lines smaller that 0.8 mm
it does not accept X intersections and overlapping
and all the lines have to be closed profiles ( closed polylines in AutoCAD)

That's why the CAD file has to be double checked prior of importing it into Revit.

If there are a few overlapping lines that "escape" in imported into Revit , then you have to solve the warnings first. What it matters is the quality of the imported CAD file.

Even the attached file had 2 or 3 overlapping and I had to clean them in Revit (it is an easier task here)

I think ,now it is cleaned...

Re: Draw a pattern or design like lattice

Anonymous — Fri, 08 May 2020 17:37:35 GMT

I followed your video carefully and imported your file in a fresh project.

I used your file ARABIC-TRIMMED-cs.dwg

got warnings

Highlighted lines overlap. Lines may not form closed loops. (8500 warnings)

Re: Draw a pattern or design like lattice

constantin.stroescu — Fri, 08 May 2020 21:42:15 GMT

Do you work in Revit LT?

Here you have a screencast in which you can see three methods and none with warnings...

Autocad 2013, Revit 2017...

https://knowledge.autodesk.com/community/screencast/6d73f720-bb57-4049-b0ff-457861f846a9

Re: Draw a pattern or design like lattice

constantin.stroescu — Sat, 09 May 2020 10:10:07 GMT

A few important things:

keep the same measure unit both in AutoCAD and Revit . I used mm in each application.
in AutoCAD:
- Check not to have lines under 0.8 mm. If they are, then try to simplify the drawing, so to get rid of them.
- Check overlapping : if my memory serves my right, AutoCAD has a function : kill overlapping
- the quality of the CAD file is essential.
in Revit
- only closed polylines will be taken in consideration for extrusion. If there are unclosed chain of lines then they have to be deleted....

About 8500 warnings you have mentioned in your post....Are there real number of warnings or the checked item ID ? I've seen rather big projects that have at most a couple of hundreds of warnings...

Re: Draw a pattern or design like lattice

Anonymous — Mon, 11 May 2020 11:57:36 GMT

Thanks for your videos and all work worked with your file. I tried with other files none of them is working. so the 2d cut is worked.

What about 3d work that is marked in blue ones. how to achieve that ( in question1.jpg).

I must say Revit is not good at importing cad files.

BTW, Thanks. Also, tell me how to extrude 3d that is marked with blue.

Re: Draw a pattern or design like lattice

constantin.stroescu — Mon, 11 May 2020 13:38:30 GMT

If you want a perforated screen or an extruded model like this:

then:

create a New Generic Model Face Based Family
load the image you want to model as background and use Extrusion
- draw construction lines first

then , use Split Element (SL) , Trim and Trim Corner (TR) to obtain closed contours

and , Finish Edit Mode

Load the Family into Project and Place it onto a wall
in order to obtain a perforated screen create an opening into the wall

and you can place the Family on the wall or in an opening

if you want to place a more organic model onto the Wall , like this:

then you have to model it or/and combine a rough model made by Extrusion with a mapped material ( use the above image ) that will appear only in render image (you can obtain a very good result by using bump mask) , or with Model Lines drawn over the Extrusion ( as shown below)
- create a New Face Based Family, load the bitmap as background , make a rough Extrusion and draw with Model Lines the details. The more work - the better result

load the Family into Project

Re: Draw a pattern or design like lattice

Anonymous — Mon, 01 Jun 2020 02:28:52 GMT

Thank you @ constantin.stroescu

your solution works.

I search whole internet but your solution was best.

could just pls post or share pre-processing cad file before importing in Revit.

But I must say Revit is bad in importing and extrude cad files.

if possible pls forward my word to Revit development team.