Method to reorient coordinate system for STEP export?
Method to reorient coordinate system for STEP export?
(OP)
Hello,
The problem is simple, when an NX model is exported to a STEP file and opened in Creo, the orientation of the model is weird. That's because in NX, Z is the up axis, whereas in Creo, Y is the up axis. I'm trying to find a solution where opening a STEP file made in NX will orient itself the proper way in Creo.
Here's a method I'm thinking about implementing. I've discovered that if you open the STEP file in notepad, find all occurrences of for example:
#91=DIRECTION('',(0.,1.,0.));
#114=CARTESIAN_POINT('',(0.,0.,-111.));
and replace the Y with the Z, and replace the Z with the negative of Y, then save the file, it will open in Creo oriented the proper way.
But before I create a program to do this, and since this is probably a common issue, does anyone know how they would normally solve this problem?
The problem is simple, when an NX model is exported to a STEP file and opened in Creo, the orientation of the model is weird. That's because in NX, Z is the up axis, whereas in Creo, Y is the up axis. I'm trying to find a solution where opening a STEP file made in NX will orient itself the proper way in Creo.
Here's a method I'm thinking about implementing. I've discovered that if you open the STEP file in notepad, find all occurrences of for example:
#91=DIRECTION('',(0.,1.,0.));
#114=CARTESIAN_POINT('',(0.,0.,-111.));
and replace the Y with the Z, and replace the Z with the negative of Y, then save the file, it will open in Creo oriented the proper way.
But before I create a program to do this, and since this is probably a common issue, does anyone know how they would normally solve this problem?
NX9 Win8.1 64bit i7-3770K 16GB Quadro2000





RE: Method to reorient coordinate system for STEP export?
Mike Hyde
www.astonmartin.com
NX8.5 with TC9.1
RE: Method to reorient coordinate system for STEP export?
it appears as a bad idea. Coordinate systems are still different.
IHO files converted to ProE, from UG, should not matter that rotation because once in ProE it is handed to low-paid draft-person not an Engineer. I just do not see why a draft-person should care for the model orientation.