Context Creation Failing

[urosjovanovic]

Greetings team,

I'm having difficulties opening the submitted IFC file. Xbim is failing at geometry context creation. Tried with newest Xbim Windows UI version (master and develop).

Any help appreciated.
Best regards,
Uros

140056.zip

[urosjovanovic]

I took a closer look into it, it seems like there is no IfcGeometricRepresentationContext in file. Manually adding the entries solved the issue. In order to get product models to actually show in viewer, their representations must be linked to added context.

Is there a possibility that context-less files default to 3D model context? The file opens fine in Revit, Navis and Solibri.

[ravigarg1]

Hi, If it is leading you to Create Context related error, you can try to convert the file on 64 bit machine. We have faced this issue couple of times on a 32 bit Machine.

[urosjovanovic]

This was tested on 64 bit machine. Not really sure what do you mean by "converting" the file?

[CBenghi]

Your proposal sounds interesting, I'll see if it makes sense talking to @SteveLockley.

[theextremeandy]

Hi, I have a similar error into XBIM.Exchange program.cs at line context.CreateContext();
Have you any idea?
tnks
andrea
This is the complete exception:
System.AggregateException: One or more errors occurred. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Xbim.ModelGeometry.Scene.Xbim3DModelContext.WriteProductShape(XbimCreateContextHelper contextHelper, IIfcProduct element, Boolean includesOpenings, IGeometryStoreInitialiser txn) in c:\BuildAgent\work\860c3b913b6c647f\Xbim.ModelGeometry.Scene\Xbim3DModelContext.cs:line 980
at Xbim.ModelGeometry.Scene.Xbim3DModelContext.<>c__DisplayClass13.b__f(IGrouping2 pair) in c:\BuildAgent\work\860c3b913b6c647f\Xbim.ModelGeometry.Scene\Xbim3DModelContext.cs:line 740 at System.Threading.Tasks.Parallel.<>c__DisplayClass17_01.b__1()
at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)
at System.Threading.Tasks.Task.<>c__DisplayClass176_0.b__0(Object )
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action1 body, Action2 bodyWithState, Func4 bodyWithLocal, Func1 localInit, Action1 localFinally) at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable1 source, ParallelOptions parallelOptions, Action1 body, Action2 bodyWithState, Action3 bodyWithStateAndIndex, Func4 bodyWithStateAndLocal, Func5 bodyWithEverything, Func1 localInit, Action1 localFinally) at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable1 source, ParallelOptions parallelOptions, Action1 body) at Xbim.ModelGeometry.Scene.Xbim3DModelContext.WriteFeatureElements(XbimCreateContextHelper contextHelper, ReportProgressDelegate progDelegate, XbimGeometryType geomType, IGeometryStoreInitialiser txn) in c:\BuildAgent\work\860c3b913b6c647f\Xbim.ModelGeometry.Scene\Xbim3DModelContext.cs:line 782 at Xbim.ModelGeometry.Scene.Xbim3DModelContext.CreateContext(ReportProgressDelegate progDelegate, Boolean adjustWcs) in c:\BuildAgent\work\860c3b913b6c647f\Xbim.ModelGeometry.Scene\Xbim3DModelContext.cs:line 681 at Xbim.Exchange.Program.Main(String[] args) in C:\Users\Administrator\Downloads\XbimExchange-master\XbimExchange-master\Xbim.Exchange\Program.cs:line 48 ---> (Inner Exception #0) System.NullReferenceException: Object reference not set to an instance of an object. at Xbim.ModelGeometry.Scene.Xbim3DModelContext.WriteProductShape(XbimCreateContextHelper contextHelper, IIfcProduct element, Boolean includesOpenings, IGeometryStoreInitialiser txn) in c:\BuildAgent\work\860c3b913b6c647f\Xbim.ModelGeometry.Scene\Xbim3DModelContext.cs:line 980 at Xbim.ModelGeometry.Scene.Xbim3DModelContext.<>c__DisplayClass13.<WriteFeatureElements>b__f(IGrouping2 pair) in c:\BuildAgent\work\860c3b913b6c647f\Xbim.ModelGeometry.Scene\Xbim3DModelContext.cs:line 740
at System.Threading.Tasks.Parallel.<>c__DisplayClass17_0`1.b__1()
at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)
at System.Threading.Tasks.Task.<>c__DisplayClass176_0.b__0(Object )<---

[CBenghi]

Hello @theextremeandy,
can you share (in private if needed) the offending file?
Claudio

[theextremeandy]

Hello @CBenghi
yes I can. i sent the ifc file to your email
tnks ;-)

[CBenghi]

@theextremeandy
Your file seems to open without issues in the latest develop branch...
Is that the one you are using?

[theextremeandy]

good new!
but my error occurs in phase of conversion from IFC to wexBim

[CBenghi]

Your error occurs at context creation, which is the operation needed to open the file in Xplorer... Have you tried with latest develop?

…

On 19 Dec 2017 16:11, "extremeandy" ***@***.***> wrote: good new! but my error occurs in phase of conversion from IFC to wexBim — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#38 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AFOPsWyB1jXMclzoU2WWw8I7IUmOpGi8ks5tB9IwgaJpZM4MLJvv> .

[theextremeandy]

I think yes we download the entire project in zip format and we upgrade with NuGet so we are using XbimEssentials version V4.0.29 is this correct? On Tue, Dec 19, 2017 at 7:04 PM, Claudio Benghi <notifications@github.com> wrote:

…

Your error occurs at context creation, which is the operation needed to open the file in Xplorer... Have you tried with latest develop? On 19 Dec 2017 16:11, "extremeandy" ***@***.***> wrote: > good new! > but my error occurs in phase of conversion from IFC to wexBim > > — > You are receiving this because you were mentioned. > Reply to this email directly, view it on GitHub > <#38# issuecomment-352786906>, > or mute the thread > <https://github.com/notifications/unsubscribe-auth/ AFOPsWyB1jXMclzoU2WWw8I7IUmOpGi8ks5tB9IwgaJpZM4MLJvv> > . > — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#38 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ARUbMr09YwUqP6BWZQy6akH97f_3MgfXks5tB_qngaJpZM4MLJvv> .

[theextremeandy]

another problem is below
steps:
download XbimWindowsUI
open project with VS2017
build ok
add packages sources Develop and Master to NuGet pakage manager setting
build ok
update log4net
build ok
update json
build ok
update essentials
build with errors in attached image

the second one I think is simple resolve without the last parameter
but we can't resolve this:
pe.Activate(false);
can you help me
tnks

[CBenghi]

I see from the screenshot that you are not under a git repo ("add to source control")....
Can you try again through git and checking out develop branch?
I think your problem is there.
Claudio

[SteveLockley]

Files that contain no geometric representation context are possible but violate the Ifc schema. The context gives information on precision and coordinate systems. If precision is not correctly specified boolean operations can often fail. It is better to have a valid ifc file rather than default to some "typical" precision.
I am closing this issue as the failure to create a context is resolved in the latest versions