App::PropertyDirection vs. App::PropertyVector?

[Roy_043]

Is there a difference between App::PropertyDirection and App::PropertyVector? Both hold a vector and seem identical.

[dprojects]

Is there a difference between App::PropertyDirection and App::PropertyVector? Both hold a vector and seem identical.

You mean Part.Vertex vs FreeCAD.Vector?

[onekk]

They seems the same except for what is contained as data.

they share many things see maybe.

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help(Part.makeCylinder())

as example pnt is the Vector and dir is a Vector but usually "normalized" to Vector(0, 0, 1) Vector(1, 0, 0) and Vector(0, 1, 0) but even complex things like Vector(0.5, 0.5, 0.5) (fake numbers).

but also normals are returned as Vector but are conceptual more similar to an Axis.

We have had some other discussion recently about cylinder orientation where some code was posted.

I could remember wrong but usually a dir is returned "normalized".

@edwilliams16 will for sure correct me.

Regards

Carlo D.

Edited post to clarify my thoughts and commented out some wrong assumptions.

[Roy_043]

Apart from the name these property types seem identical, there is no built-in normalization of App::PropertyDirection. For example in the Draft WB App::PropertyDirection is not used at all. I just wonder why App::PropertyDirection exists.

[edwilliams16]

If I add a Direction Property and set it to (1,1,1), then read it out with Python, it comes back as is - not normalized. Even if I set it to (0,0,0) which is illegal for a direction, it comes back as is. So I would say that it is functionally identical to a Vector.
Rotations make a distinction between RawAxis and the normalized Axis. I'm not sure how to check their Property Types.
I noted that FreeCAD would not accept my changing a Rotation Axis to (0,0,0) - which is good!

[Chris_G]

Rotations make a distinction between RawAxis and the normalized Axis. I'm not sure how to check their Property Types.

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obj.getTypeIdOfProperty("Axis")

[edwilliams16]

Rotations make a distinction between RawAxis and the normalized Axis. I'm not sure how to check their Property Types.

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obj.getTypeIdOfProperty("Axis")

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rot = App.Rotation()

What is obj to use obj.getTypeIdOfProperty("Axis"). rot doesn't have that method.

[Chris_G]

obj is a document object.

[edwilliams16]

@Chris_G

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doc = App.getDocument("Unnamed10")
obj = doc.getObject("Box")
obj.PropertiesList
['AttacherType', 'AttachmentOffset', 'ExpressionEngine', 'Height', 'Label', 'Label2', 'Length', 'MapMode', 'MapPathParameter', 'MapReversed', 'Placement', 'Shape', 'Support', 'Visibility', 'Width']

How do I drill down to Axis or RawAxis?

[Chris_G]

I was just answering on "how to get the type of property".