Model Metadata in X3d

[merco]

It would be possibile to have metadata (GENERAL_PROPERTY) in X3D?

Could STP2X3D generate a separate file output with these information ?

here the file
http://davidemercanti.altervista.org/sources/1M001934.stp

[soonjokwon]

It might be possible to get those information from the STEP file.
For now, we do not have plans to officially include the function to export a separate file for those information.
Please refer to the source codes related to STEP file import which will give you a hint how to get those information.
I'll be happy to answer your follow-up questions.

[merco]

Thank you. I've built source code with VS2019.
However, it is not clear to me which OCC object to use to read the GENERAL_PROPERTY associated with a component.
Can you help me with some example links?

[soonjokwon]

Consider using "StepBasic_GeneralProperty".
See "STEP_Data.cpp" for traversing STEP instances.

Here's an example of getting id, name, and description of an instance of a general property.

#include <StepBasic_GeneralProperty.hxx>
...
...
Handle(StepBasic_GeneralProperty) gp = Handle(StepBasic_GeneralProperty)::DownCast(entity);
string id = gp->Id()->ToCString();
string name = gp->Name()->ToCString();
string desc = gp->Description()->ToCString();

[merco]

Thank you.
Ok I can get the names traversing entities... but It is not clear to me how to recover the value of the property and know which instance it is connected to