# FAQ: What HOOPS Exchange Read/Write parameters are used in Converter command line options?

**URL:** <https://forum.techsoft3d.com/t/faq-what-hoops-exchange-read-write-parameters-are-used-in-converter-command-line-options/1344>\
**Category:** HOOPS Visualize Web\
**Tags:** knowledge-base, faq, import\
**Created:** [August 12, 2021, 4:00am UTC](https://forum.techsoft3d.com/t/faq-what-hoops-exchange-read-write-parameters-are-used-in-converter-command-line-options/1344 "2021-08-12T04:00:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![gabriel.peragine](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.techsoft3d.com/gabriel.peragine/32/1535_2.png) [@gabriel.peragine](https://forum.techsoft3d.com/u/gabriel.peragine)\
**Post date:** [August 12, 2021, 4:00am UTC](https://forum.techsoft3d.com/t/faq-what-hoops-exchange-read-write-parameters-are-used-in-converter-command-line-options/1344/1 "2021-08-12T04:00:00Z")

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HOOPS Communicator Converter convert CAD models using HOOPS Exchange with Exchange API Read/Write parameters which are exposed to Converter command line options.  
Here is a list of command line options and corresponded parameters of HOOPS Exchnage.

- Command line options for importing CAD models are using `A3DRWParamsLoadData`.  
[![](https://us1.discourse-cdn.com/flex020/uploads/techsoft3d/original/1X/ad321e5fc599e2b6870e23fdf3ef25ee62f02fea.png)A3DRWParamsLoadData — HOOPS Exchange 2022\_SP2 documentation](https://docs.techsoft3d.com/exchange/latest/api/structA3DRWParamsLoadData.html#_CPPv419A3DRWParamsLoadData)

| –configuration | A3DRWParamsMultiEntriesData::m\_ppcEntries |
| --- | --- |
| –drawings\_mode | A3DRWParamsGeneralData::m\_eReadingMode2D3D |
| –import\_hidden\_objects | A3DRWParamsGeneralData::m\_bReadHiddenObjects |
| –import\_pmi | A3DRWParamsGeneralData::m\_bReadPmis |
| –substitution\_font | A3DRWParamsPmiData::m\_pcSubstitutionFont |
| –always\_substitute\_font | A3DRWParamsPmiData::m\_bAlwaysSubstituteFont |
| –tessellation\_quality | A3DRWParamsTessellationData::m\_eTessellationLevelOfDetail |
| –read\_attributes | A3DRWParamsGeneralData::m\_bReadAttributes |
| –read\_geometry | A3DRWParamsGeneralData::m\_eReadGeomTessMode |
| –read\_wireframes | A3DRWParamsGeneralData::m\_bReadWireframes |

- Options for specific CAD format are `A3DRWParamsSpecificLoadData`  
[![](https://us1.discourse-cdn.com/flex020/uploads/techsoft3d/original/1X/ad321e5fc599e2b6870e23fdf3ef25ee62f02fea.png)A3DRWParamsSpecificLoadData — HOOPS Exchange 2022\_SP2 documentation](https://docs.techsoft3d.com/exchange/latest/api/structA3DRWParamsSpecificLoadData.html)

| –jt\_level\_of\_detail | A3DRWParamsJTData::m\_eReadTessellationLevelOfDetail |
| --- | --- |
| –revit\_physical\_properties | A3DRWParamsRevitData::m\_ePhysicalProperties |
| –ifc\_import\_relationships | A3DRWParamsIFCData::m\_bReadRelationships |

- Options for exporting to PRC, STEP, STL  
[![](https://us1.discourse-cdn.com/flex020/uploads/techsoft3d/original/1X/ad321e5fc599e2b6870e23fdf3ef25ee62f02fea.png)Export Module — HOOPS Exchange 2022\_SP2 documentation](https://docs.techsoft3d.com/exchange/latest/api/group __a3d__ write.html)

| –prc\_brep\_compression | A3DRWParamsExportPrcData::m\_bCompressBrep A3DRWParamsExportPrcData::m\_eCompressBrepType |
| --- | --- |
| –prc\_remove\_brep | A3DRWParamsExportPrcData::m\_bRemoveBRep |
| –prc\_tessellation\_compression | A3DRWParamsExportPrcData::m\_bCompressTessellation |
| –step\_export\_format | A3DRWParamsExportStepData::m\_eStepFormat |
| –stl\_ascii | A3DRWParamsExportStlData::m\_bBinaryFile |