Importing .dxf / .obj / .fbx with grasshopper

[Remy_Konings]

Hi all,

Like the title mentions, I’m looking for a way to import .dxf / .obj / .fbx with grasshopper.
I’ve seen some mentioned and tried a few solutions but unfortunately without any succes, hoping for some help with this post.

I’ve tried out this solution.

Script down below:

import rhinoscriptsyntax as rs
import scriptcontext as sc
import Rhino


        
def importToGrasshopper(fileType, fileName, filePath):

    # check the input data
    if fileType:
        if fileType.startswith("."):
            pass
        else:
            fileType = "." + fileType
            
        supportedFileTypes = [".3dm", ".3ds", ".sat", ".ai", ".dwg", ".dxf", ".dae", ".cd", ".x", ".emf", ".gf", ".pm", ".kmz", ".gts", ".igs", ".iges", ".udo", ".fbx", ".obj", ".csv", ".x_t", ".pdf", ".ply", ".txt", ".pov", ".raw", ".rib", ".skp", ".step", ".stl", ".tsm", ".tss", ".vda", ".wrl", ".vmrl", ".gdf", ".wmf", ".x3dv", ".xaml", ".xgl", ".zpr"]
        if fileType in supportedFileTypes:
            pass
        else:
            print "File type %s is not supported" % fileType
            return
    else:
        print "Please input fileType"
        return
    
    if fileName:
        pass
    else:
        print "Please input fileName"
        return
    
    if filePath:
        if filePath.endswith("\\"):
            pass
        else:
            filePath = filePath + "\\"
    else:
        return
        print "Please input filePath"


    # geometryTypes functions


    fileNameAndType = fileName + fileType
    finalPath = filePath + fileNameAndType
    
    commandString = "_-Import " + finalPath + " _Enter _Enter _Enter" 
        
    done = rs.Command(commandString)
    if done:
        print "%s file successfully imported from: %s" % (fileNameAndType, filePath)



if Import:
    importToGrasshopper(fileType, fileName, filePath)

The script has some problems with the white spaces in the file path and can not import anything because of it.

Thank you

[stevebaer]

You can use the “Import 3dm” component in Rhino 7 to read all of the file formats that Rhino supports.

[Remy_Konings]

oh wow, I did not realize that. Thanks for the tip!

Any idea why it’s still called “import 3dm” as it supports multiple formats?

[stevebaer]

The component already existed as “Import 3dm” in Rhino 6. I added the ability to support non-3dm paths without creating a new component type in Rhino 7.

[Remy_Konings]

I see. Thanks.

Attached my GH file. Perhaps I’m doing something wrong. I have a system which checks for new .dxf files and checks if an export is already made to .fbx of the same .dxf. Can I use the import 3dm component in this way? I think I need a boolean toggle to determine which ones can be exported and which ones don’t have to. Struggling with the import geo method a bit.

ImportGeo.gh (19.4 KB)

[Remy_Konings]

Strange enough .dxf are not supported?

[stevebaer]

It should be. I drew a few curves in Rhino and exported them as a dxf. They came in fine with the import 3dm component

[Remy_Konings]

I’ve changed the input from .dxf to .fbx and it all works now. Perhaps that is a better flow for me anyway
Thanks for the help!

[wim (Wim Dekeyser)]

Hi Remy -

@Remy_Konings

Strange enough .dxf are not supported?

I see that here and put it on the list as RH-65519.
Thanks,
-wim

[stevebaer]

@Remy_Konings

Strange enough .dxf are not supported?

The DXF that you posted earlier was entirely composed of blocks. Grasshopper doesn’t support blocks. What do you think the component should do in cases like this?

[ThomasE (Thomas Evans)]

Hi, @stevebaer any thoughts about this problem? @wim

Import 3DM bug with FBX files?

I have an FBX saved in Centimeters and since Import 3DM supports all formats, when I use the importer within GH it always appears this dialogue in the command: Rhino units are Millimeters and scale it by 10. Why does the importer doesn’t use the current unit and always assume millimeters? Is this a bug? Even if I use Centimeters as you can see, thank you! Command: _Grasshopper Rhino units are Millimeters FBX units are Centimeters FBX geometry will be scaled by 10. [SharedScreenshot]

[stevebaer]

Replied in original thread

[_Rhino_User]

Hey,

I searched a way to import a lot of DXF files with Grasshopper in Rhino and i found in this Thread the Component Import 3DM. Thanks for that !

If i use Import 3DM its not working like i expected. U can see it in the following Screenshot. On the left we have the Grasshopper Version, on the right the Drag % Drop Version.

Also the way to create a block out of it with the file name is not working, i cant bake it.

Can anyone help me out to fix this ?

Thanks for your time !

Screenshot.1:

My data:

Screenshot.2:

DXF file:
Test.DXF (345.0 KB)

[scottd (Scott Davidson)]

Is this Rhino 8?

And you want to write out each DXF as a Rhino 3dm?

So a list of 5 DXFs would result in 5 3DMs?

[_Rhino_User]

all DXF files in 1 3dm
It will be later over 1000 DXFs i will need in 1 3dm

Rhino 7:

Rhino 8: This time i had a error message, but it created the object again in all black with wrong text sizes.

[scottd (Scott Davidson)]

There are two parts to this.

Here is how I would read in the DXF files and create blocks of each:

Of course the file names could be harvested for block names. This uses the Rhino 8 DataTypes and Import Content component.

The second is why the DXF is coming in black with font issues. I will take a look at that.

[scottd (Scott Davidson)]

This worked with the Test.DXF.

The definition above does not insert the Block instance. So to get these definitions actually set in Rhino, the Right-Click Bake on the Block definition to Bake it.

Or, use a component Cache to set the block definitions in Rhino.

[_Rhino_User]

Thanks for the fast help !

Same Script, but at me all the Curves are missing. Rhino 8.

Version 8 SR6
(8.6.24101.5001, 2024-04-10)

Baked from Grasshopper

Script:

[scottd (Scott Davidson)]

I am running 8.8, but that should not really matter.

Can I get the Grasshopepr definition? I will take a look why it is different.

I will PM you a link to today’s build?

[_Rhino_User]

Here is my file i used the same DXF i uploaded before.

DXF_import_01.gh (10.1 KB)

U wrote: “I will PM you a link to today’s build?”
What do u mean with that, sending me your build, maybe your .gh file ?