Overlays: edge angle vs. face angle

Question Modeling

A very basic question. I hope that I am not crazy.

I wanted to see the angles between some edges in my plane. Enabling "edge angles" in Overlays, then selecting any combination of edges, displays a single value of 0.000 (image #1). If instead I enable "face angles" and select a face (faces), I seem to get usable information (image #2). I don't see how it correlates to documentation or common sense. Same behavior in 3.6 LTS and 2.81a.

I admit I don't often use this capability, but I must be missing something.

angles-edge-not.jpgangles-face-ok.jpg

  • techworker1 replied

    Additional: The measure tool is not very useful/convenient. If I place 3 points to begin angle measurement mode, I need to fiddle with the points and force them to be co-planar so that I get a meaningful measurement. (They weren't co-planar by default, and displayed measurements were nonsensical.) This is why I was looking for a better alternative.

  • Martin Bergwerf replied

    Hi techworker1 ,

    You are not crazy!

    I don't know if this is a Blender thing, or CG in general, but:

    Edge Angles are the angles between the two Faces that share an Edge, measured in this weird way:

    Edge Angle.png

    whereas Face Angles are the angles at the corners of the Faces:

    Face Angles.png

    Totally unintuitive, right?


    1 love
  • Martin Bergwerf replied

    (I would have called the first, Face Angles and the second, Edge Angles)


    • Makes more sense
    1 love