Ifcopenshell: Convert IFC file into svg floor plans

[Ahmed-Abdelhak]

Hello,

I am trying to use the IFCConverter.exe in order to converting an IFC file which is a 30 floor Model
into multi SVG 2d floor plans

I have downloaded the executable file, but once i drag my IFC file over the converter.exe , it only generates .obj File !

How i can specify the output files through this executable ?

thanks in advance

[Stinkfist0]

OBJ is the default format (trivial one-liner in code to change, if one wishes for their use case) when no other parameters than input file is specified, which is the case for drag-and-drop. For SVG, use IfcConvert.exe input.ifc output.svg. Note that for SVG, all the floors will superimposed be in the same file so you need an editor to separate them.

[Ahmed-Abdelhak]

thanks a lot for your reply

but i got an error

Log:
[Error] ContextType 'Annotation' not allowed:

91=IfcGeometricRepresentationContext($,'Annotation',3,0.01,#80,#81)

[Error] No geometrical entities found

i am trying to convert this file : https://mega.nz/#!8p1SFC6C!SpI8_z9hSzQJ8t4jFcZXsjbfHrYow9Kox_TtK7D8bzY

and i am using this converter

https://s3.amazonaws.com/ifcopenshell-builds/IfcConvert-master-161deeb-win64.zip

which found here

https://github.com/IfcOpenBot/IfcOpenShell/commit/161deeb4e057279cf80645fe1a6cd88cf911fe49#commitcomment-31768103

[aothms]

By default the SVG exporter only considers spaces. Is it possible the file does not contain IfcSpaces?

Can you try with adding at the very end (for example) --include entities IfcWall. To convert the walls to SVG. To include everything you have to use something like --exclude entities IfcOpeningElement.

[Stinkfist0]

Ah, right. I also personally encountered these problems when first trying the SVG output and I ended up documenting the issues here: https://github.com/IfcOpenShell/IfcOpenShell/wiki

[Ahmed-Abdelhak]

thanks a lot for your help
but i end up with this

[Error] Invalid usage of '--include': the argument for option '--include' is invalid

the command i used

IfcConvert --include --entities IfcWall cando.ifc out.svg

where cando.ifc is the input and out.svg is the output

[PS: my whole life would be easier if there's a GUI instead of the tedious CMD ! :( :( :( :( ]

[Stinkfist0]

Sorry, the syntax has changed a bit and I have forgotten to update the instructions, it's IfcConvert.exe input.ifc output.svg --include entities IfcWall (I have updated the Wiki now). The fact the --include ... and --exlclude ... needs to be after input and output files is not apparently documented in --help, this would be nice to have.

[Ahmed-Abdelhak]

great, thanks a lot

but i ended up with a small error

[Error] {3DsBefxBv55fZ2Zh3u1IiC} Opening subtraction failed for 1 openings

66237=IfcWallStandardCase('3DsBefxBv55fZ2Zh3u1IiC',#41,'Basic Wall:Generic - 200mm:144036',$,'Basic Wall:Generic - 200mm:398',#66209,#66235,'144036')

i have also used another command

IfcConvert.exe cando.ifc output.svg --include entities IfcWall --exclude entities IfcOpeningElement.

[Ahmed-Abdelhak]

i have tried with another file :

https://mega.nz/#!4h8iQA6Z!cHxDytZqwmEGdgvF7QGxcyx6MPscRjMofDxd9xqyFrc

and it says that it's successfully done, however i opened the ouput file and found that it's empty file !

the log in my CMD says

Done creating geometry (171 objects)
Conversion took 5 seconds

and when i opened the file i found

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
</svg>

[aothms]

I just realized SVG output was not correctly working yet in the v0.6.0 branch. Are you on that branch by any chance? Just fixed that in: https://github.com/IfcOpenShell/IfcOpenShell/commit/80e166302a425837376044f16f8be9595a6d3c75

If you're not compiling yourself I'd recommend to get a recent 0.5 for the time being https://github.com/IfcOpenBot/IfcOpenShell/commit/c61bc29f0646430c207050ed5b62a6a216628159

Another comment. You probably want to add something like --bounds 1024x1024 to make sure the IFC world coordinates map to sensible SVG viewbox in pixels.

[zhupan007]

非常感谢您的回复

但我有一个错误

日志：
[错误]不允许ContextType'注释'：
＃91 = IfcGeometricRepresentationContext（$，'Annotation'，3,0.01，＃80，＃81）
[错误]找不到几何实体

我正在尝试转换此文件： https://mega.nz/#!8p1SFC6C!SpI8_z9hSzQJ8t4jFcZXsjbfHrYow9Kox_TtK7D8bzY

我正在使用这个转换器

https://s3.amazonaws.com/ifcopenshell-builds/IfcConvert-master-161deeb-win64.zip

在这里找到

IfcOpenBot @ 161deeb＃commitcomment-31768103

I also met this problems: ContextType 'Annotation' not allowed.

Log:
[Error] ContextType 'Annotation' not allowed:

91=IfcGeometricRepresentationContext($,'Annotation',3,0.01,#80,#81)

When I convert ifc2obj, how can i solve this problems

[aothms]

We don't speak Chinese.

Warnings related to ContextType can often be ignored.