Elvira Khromykh

In the last commit [7076b77](https://github.com/tumcms/Open-Infra-Platform/pull/571/commits/7076b77a0702f1ee1aacff7f3869c2043a0bd709) I listed relevant changes for OIP.

I tried to test this examples with the new schema (pull request #571 ) but it took a long time on my machine. Unfortunately I can not get any result....

I tried to test [TrimbleTestFile_Ver2.zip](https://github.com/buildingSMART/IFC4.x-IF/blob/main/IFC-files/Trimble/TrimbleTestFile_Ver2.zip) First of all, I corrected Ifc Schema Name 'IFC4X3_RC4' (I use IFC4X3_RC4) And I detected folowing errors:   And similar errors but in text...

Testing [TrimbleTestFile_Ver3.zip](https://github.com/buildingSMART/IFC4.x-IF/blob/main/IFC-files/Trimble/TrimbleTestFile_Ver3.zip) gives the same result. Ifc Schema corrected to `IFC4X3_RC4` Screen shot:  Next errors in text format: ``` error in #370632=IFCRELCONTAINEDINSPATIALSTRUCTURE('3Tq_B5xovC5euyxyrrskRS',#6,$,$,(#1766,#2022,#2107,#1801,#1920,#1937,#1696,#1713,#1818,#1852,#1835,#1869,#1886,#1903,#2039,#2056,#2073,#2090,#2124,#2141),#377);: Could not find reference with ID=377 error...

In the last commit new unit tests were added for `clothoid` and `line`. The tests also contain images. There are some problems with previos geometries: 1. In`circular-arc` and `helmert-curve` there...

And there is a question about how does the `AllEntitiesAreRead` work? or how must it work correctly? Usually we should count the numbers of entities, but in the last test...

In the last commit `71f684b` screenshots were updated. New screenshots contain only main and top view (Unnecessary Test was deleted). - [ ] For bloss, helmeert, sine, cosine we need...

There are several changes in the last commits cf59b36 and 28f6421. - First, I was trying to find corresponding functions from the SpiralUtils, but it returned high values of X...

- Screen shot of the top left:  - Screen shot of the top left front:  - `IfcSectionedSolidHorizontal` exist in the unit test code