Overwriting constructions in database

[Rhind]

There's no direct way of changing a surface type. Surface types are based on the geometry you have in your model.

[izzylys]

Hello,

This thread was very helpful! I have a few related questions:

1. When setting 'g_value' using 'set_properties()', what exactly is this setting? I have been trying to use it and I can see it setting the 'g_value' by using 'get_properties()', but the g-value in the GUI does not change. What is the difference between these two properties?

2. Calling 'get_g_values()' on a construction object raises an AttributeError:

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AttributeError: 'VECdbConstruction' object has no attribute 'get_g_values'

How should I call this correctly? I wasn't able to find an example in the cdb example scripts.

3. What exactly is the bug with 'set_properties()' on cdb objects? Some clarification on this would be great to understand what I should be looking out for when using it.


Many thanks,
Izzy

[Rhind]

Hi,

1. This is the g-value you see in the 'regulation' tab. 'get_g_values() will give you a dictionary of three g-values, keys are 'bs_en_410', 'building_regulations', 'bfrc'.

2. Should be straightforwardly construction.get_g_values(). What version of the VE are you using? This particular method is not available in older versions of the API.

3. If I remember correctly, the properties were sometimes not retained after you had set them from a script. This was fixed for 2018 FP2.

Hope that helps.

[samg]

2. I looked at at the sample of assign_to_bodies, and the code below didnt work well, it didnt successfully assign the construction.

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for surface in surfaces:
            # Only proceed to assign a construction if it's external glazing
            if surface.type == iesve.VESurface_type.ext_glazing:                     
                # Get the first glazing construction we can find
                construction = project.get_construction(ids[0], c_class)
                # Assign the glazing construction to the external glazing         
                body.assign_construction(construction, surface)

I printed suface.type and there is no surface type as ext_glazing, so I assumed this is the reason why the construction was not assigned. So I am wondering is there a way to solve this?

Tian, I am having this same issue. There are no surface types which are ext_glazing, and removing the if statement from that piece of code doesn't work (assigning a glazing construction to the surface on which it lies doesn't work - it results in the error "invalid construction type for the surface"). Assigning it to the opening/window object doesn't work either.

It doesn't seem like glazing constructions can be assigned. Have you had any luck?

[izzylys]

2. Should be straightforwardly construction.get_g_values(). What version of the VE are you using? This particular method is not available in older versions of the API.

I'm running 2017 and running get_g_values() on a construction object returns an attribute error. Does this function only work in 2018?

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AttributeError: 'VECdbConstruction' object has no attribute 'get_g_values'

[Rhind]

Yes, I think it was new in 2018.