ComponentPath to Root

[MichelH]

Hello,

using JLink I am trying to acces the coordinate system of the root assembly while I am on a sub-level part. I am using the method CreateModelItemSelection (ModelItem SelItem, /*optional*/ ComponentPath Path). I am not sure what to use for ComponentPath since I want to access the root assembly.

Neither of the following three approaches succeeded:

"null":
ComponentPath(rootAsm, null) 
-> coordinate system of sub-level part is selected

empty intseq:
ComponentPath(rootAsm, intseq.create());
-> coordinate system of sub-level part is selected

providing (0) as intseq:
intseq idsroot = intseq.create();
idsroot.insert(0, 0);
ComponentPath(rootAsm, idsroot); -> pfcExceptions$XToolkitGeneralError

I don't know if I am missing something here. I appreciate any help and ideas on how to access the top coordinat system!

Thank you and kind regards

Michael

[RPN]

Hi,

the CompPath with RootAsm and NULL should be valid, the Modelitem is CSYS is not the Feature ID! It's the geom ID, owner is the RootAsm as well.

Try it the other way round, select and dump the result.

[MichelH]

Hi RPN,

thank you for your quick reply!

Is ist correct to select the CSYS by using ModelItem?

If I do:

ModelItem rootCsys_geom;
rootCsys_geom = rootAsm.ListItems(ModelItemType.ITEM_COORD_SYS).get(0);
Selection selCsys = pfcSelect.CreateModelItemSelection(rootCsys_geom, null);
igesInstrs.SetReferenceSystem(selCsys);

I still do not get the root CSYS.

Kind regards

Michael 

[MichelH]

Hi,

I changed the code so that there is a ComponentPath instance but only an empty intseq:

ComponentPath rootpath = pfcAssembly.CreateComponentPath(rootAsm, intseq.create());
ModelItem rootCsys_geom = rootAsm.ListItems(ModelItemType.ITEM_COORD_SYS).get(0);
Selection selCsys = pfcSelect.CreateModelItemSelection(rootCsys_geom, rootpath);
igesInstrs.SetReferenceSystem(selCsys);

The root CSYS is still not selected. Is there a different way to select the geometry of the CSYS?

Kind regards

Michael

[RPN]

I'm not the VB guy, I use Tcl, but I would try to specify the Feat ID only, because this is how Toolkit is working.

extern ProError ProOutputFileWrite ( ProMdl      model,
                                     ProFileName name,
                                     ProImportExportFile   file_type,
                                     ProAppData  arg1,
                                     ProAppData  arg2,
                                     ProAppData  arg3,
                                     ProAppData  arg4 );

...

If file_type is PRO_IGES_3D_FILE, PRO_STEP_FILE,
                  PRO_VDA_FILE, PRO_FIAT_FILE,
                  PRO_CATIA_DIRECT_FILE or PRO_ACIS_FILE arg2 is a 
                 int* pointing to the number.

...

In Tcl if an assembly or part  with a csys at feature 1 is the current model:

  ps_export iges_3d -csys 1 iges_out.igs

Specify the assembly:

  ps_export iges_3d -model my_assy.asm -csys 1 iges_out.igs

[MichelH]

Even getting a hold on the root CSYS by its ID doesn't work:

ComponentPath rootpath = pfcAssembly.CreateComponentPath(rootAsm, intseq.create());
int rootCsysId = ((Solid) rootAsm).ListItems(ModelItemType.ITEM_COORD_SYS).get(0).GetId();
ModelItem rootCsys_geom = ((Solid) rootAsm).GetItemById(ModelItemType.ITEM_COORD_SYS, rootCsysId);
Selection selrootCsys = pfcSelect.CreateModelItemSelection(rootCsys_geom, rootpath);
igesInstrs.SetReferenceSystem(selrootCsys);
instrs = igesInstrs;
String outputPath = Integer.toString(counter++) + "_" + model.GetInstanceName().toLowerCase() + ".igs";
model.Export(outputPath, instrs);

[RPN]

 You could try to invoke a selection, and check the export by this manual select. If it is working dump the selection information, maybe like the other thread you have to use the geom id. So you may not specify a modelitem, you may specify like in Toolkit only an integer value.