# \#rv **URL:** https://forums.buildingsmart.org/tag/rv/31.md [Latest](https://forums.buildingsmart.org/latest.md) · [Categories](https://forums.buildingsmart.org/categories.md) · [Tags](https://forums.buildingsmart.org/tags.md) --- ## [Precision value and two checks](https://forums.buildingsmart.org/t/precision-value-and-two-checks/1096)
**Author:** [@lassi.liflander](https://forums.buildingsmart.org/u/lassi.liflander)\ **Replies:** 3\ **Last updated:** [June 25, 2021, 1:52am UTC](https://forums.buildingsmart.org/t/precision-value-and-two-checks/1096 "2021-06-25T01:52:16Z")
“Value of the model precision for geometric models. It is a double value (REAL), typically in 1E-5 to 1E-8 range, that indicates the tolerance under which two given points are still assumed to be identical. The value can… --- ## [IfcMaterialConstituentSet + IfcShapeAspect + IfcPhysicalComplexProperty](https://forums.buildingsmart.org/t/ifcmaterialconstituentset-ifcshapeaspect-ifcphysicalcomplexproperty/2164)
**Author:** [@igor.sokolov](https://forums.buildingsmart.org/u/igor.sokolov)\ **Replies:** 2\ **Last updated:** [December 17, 2019, 2:08pm UTC](https://forums.buildingsmart.org/t/ifcmaterialconstituentset-ifcshapeaspect-ifcphysicalcomplexproperty/2164 "2019-12-17T14:08:15Z")
Is any application able to import all this information together? or plan to implement? Is anybody thinking this monster construction is simpler than IfcMaterialLayerSetUsage? Should not bSI remove this nightmare from f… --- ## [Problems when parsing and automating ReferenceView\_V1-2.mvdxml](https://forums.buildingsmart.org/t/problems-when-parsing-and-automating-referenceview-v1-2-mvdxml/1935)
**Author:** [@Helland](https://forums.buildingsmart.org/u/Helland)\ **Replies:** 1\ **Last updated:** [November 18, 2019, 7:25am UTC](https://forums.buildingsmart.org/t/problems-when-parsing-and-automating-referenceview-v1-2-mvdxml/1935 "2019-11-18T07:25:29Z")
Hi, I’m working on parsing the ReferenceView MvdXML document, and I have some problems and annoyances that I want to share. I really hope they will be addressed in the future. Problem 1: Some of the expressions in Temp… --- ## [IFC & Data/Information](https://forums.buildingsmart.org/t/ifc-data-information/1930)
**Author:** [@ReD\_CoDE](https://forums.buildingsmart.org/u/ReD_CoDE)\ **Replies:** 0\ **Last updated:** [October 21, 2019, 11:27am UTC](https://forums.buildingsmart.org/t/ifc-data-information/1930 "2019-10-21T11:27:57Z")
Hi all, I clearly understand the logic behind the UserDefined to give enough freedom to the end-user (Convergence = Standardization & Divergence = Non-standardization) However, I think it’s the time to improve Psets, Q… --- ## [MaterialPass (Material Passport)](https://forums.buildingsmart.org/t/materialpass-material-passport/1901)
**Author:** [@ReD\_CoDE](https://forums.buildingsmart.org/u/ReD_CoDE)\ **Replies:** 0\ **Last updated:** [October 9, 2019, 3:38pm UTC](https://forums.buildingsmart.org/t/materialpass-material-passport/1901 "2019-10-09T15:38:15Z")
These days I’m thinking of IFC-based Material Passport through PBR materials plus simulation technologies/methodologies called MaterialPass (MaterialPass.org) ------------------------------------------------------------… --- ## [The non-permanent GUIDs](https://forums.buildingsmart.org/t/the-non-permanent-guids/1059)
**Author:** [@lassi.liflander](https://forums.buildingsmart.org/u/lassi.liflander)\ **Replies:** 4\ **Last updated:** [May 31, 2019, 9:11am UTC](https://forums.buildingsmart.org/t/the-non-permanent-guids/1059 "2019-05-31T09:11:50Z")
At the moment the non-permanent GUIDs are “faked” to look like the permanent GUIDs, but there should not be any real need to do. This is only causing problems to regression testing , to diffs, etc. Therefore I’m propos… --- ## [IFC4 RV - How to export elements with closed body containing inner voids](https://forums.buildingsmart.org/t/ifc4-rv-how-to-export-elements-with-closed-body-containing-inner-voids/842)
**Author:** [@gkiss](https://forums.buildingsmart.org/u/gkiss)\ **Replies:** 0\ **Last updated:** [January 8, 2019, 12:09pm UTC](https://forums.buildingsmart.org/t/ifc4-rv-how-to-export-elements-with-closed-body-containing-inner-voids/842 "2019-01-08T12:09:54Z")
Hi, ifcfacetedbrepwithvoids are out of scope in IFC4 RV 1.2 http://www.buildingsmart-tech.org/ifc/IFC4/Add2TC1/html/link/ifcfacetedbrepwithvoids.htm Option is skip closed shells of voids during IFC4 RV export. But thi… --- ## [IFC4 RV1.2 Certification Requirements](https://forums.buildingsmart.org/t/ifc4-rv1-2-certification-requirements/212)
**Author:** [@jwouellette](https://forums.buildingsmart.org/u/jwouellette)\ **Replies:** 0\ **Last updated:** [August 4, 2018, 6:41am UTC](https://forums.buildingsmart.org/t/ifc4-rv1-2-certification-requirements/212 "2018-08-04T06:41:14Z")
Hello everyone, The Software Certification team, along with Richard Petrie, have just released a letter to the vendor community regarding the requirements for the new testing regime for IFC4 Reference View 1.2. It can b…