# Faces by Attribute

![](/files/-Mihnu1qnRFBJiU4F3BZ)

![](/files/-Mihnu1rYZzeE4azJxIL) - [\[source code\]](https://github.com/ladybug-tools/honeybee-grasshopper-core/blob/master/honeybee_grasshopper_core/src//HB%20Faces%20by%20Attribute.py)

Separate and group Honeybee Faces, Apertures, Doors and Shades by any attribute that the objects possess.

This can be used to group faces by construction, modifier, etc.

### Inputs

* **hb\_objs \[Required]**

An array of honeybee Rooms, Faces, Apertures, Doors or Shades to be separated by their attributes in the Rhino scene.

* **attribute \[Required]**

Text for the name of the Face attribute with which the Faces should be labeled. The Honeybee "Face Attributes" component lists all of the core attributes of the room. Also, each Honeybee extension (ie. Radiance, Energy) includes its own component that lists the Face attributes of that extension.

* **value**

An optional value of the attribute that can be used to filter the output rooms. For example, if the input attribute is "Azimuth" a value for the orientation of the Face can be plugged in here (eg. "180" for south-facing) in order to get Faces with only this oreintation.

### Outputs

* **values**

A list of values with one attribute value for each branch of the output hb\_objs.

* **hb\_objs**

A data tree of honeybee faces and sub-faces with each branc of the tree representing a different attribute value.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ladybug.tools/honeybee-primer/components/2_organize/faces_by_attribute.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.