"Edges of Vertex" Node domain #104435

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Ivan-Eduati · 2023-05-11T12:23:53+02:00

Ivan-Eduati commented

2023-05-11 12:23:53 +02:00

Page Information
File: manual/modeling/geometry_nodes/mesh/topology/edges_of_vertex.rst
Blender Version: 3.5
Documentation Language: en
Permanent Link

Short description of error
It's not clear in which domain the node should be used.
In documentation is written:
"...which makes it important that the node is evaluated on the vertex domain."
But the node has and "Edge Index" Output, so how is it possible to use and Edge Index on a vertex domain?

Also Inputs have the same problem: "Vertex Index" input must be specified on vertex domain but "Weights" input must be specified on edges domain.

So in which domain should the "Edges of Vertex" node be used?

As in many other nodes (pretty much almost every topology nodes) documentation, an example whould be very usefull.
Again in the same In documentation is written:
"One example use is finding the 'most vertical' edge connected to each vertex."
It's almost necessary to add a screenshot of the node tree to show how.

I'm attaching a screenshot of how I tried, unsuccessfully, to do it myself.

PS: On the "Edge Index" output description is written:
"An edge connected to the face, chosen by the Sort Index input."
It should be "An edge connected to the vertex, ..." cause it's the "Edges of Vertex".
And this slot doesn't output an edge but an index, so not geometry but an integer.

**Page Information** File: `manual/modeling/geometry_nodes/mesh/topology/edges_of_vertex.rst` Blender Version: `3.5` Documentation Language: `en` [Permanent Link](https://docs.blender.org/manual/en/3.5/modeling/geometry_nodes/mesh/topology/edges_of_vertex.html) **Short description of error** It's not clear in which domain the node should be used. In documentation is written: "...which makes it important that the node is evaluated on the vertex domain." But the node has and "Edge Index" Output, so how is it possible to use and Edge Index on a vertex domain? Also Inputs have the same problem: "Vertex Index" input must be specified on vertex domain but "Weights" input must be specified on edges domain. So in which domain should the "Edges of Vertex" node be used? As in many other nodes (pretty much almost every topology nodes) documentation, an example whould be very usefull. Again in the same In documentation is written: "One example use is finding the 'most vertical' edge connected to each vertex." It's almost necessary to add a screenshot of the node tree to show how. I'm attaching a screenshot of how I tried, unsuccessfully, to do it myself. PS: On the "Edge Index" output description is written: "An edge connected to the face, chosen by the Sort Index input." It should be "An edge connected to the vertex, ..." cause it's the "Edges of Vertex". And this slot doesn't output an edge but an index, so not geometry but an integer.

Edges of Vertex.png

259 KiB

Ivan-Eduati added the

labels 2023-05-11 12:23:53 +02:00

ugorek commented

2023-11-16 02:52:19 +01:00

I have a usage example

The average direction of the two edges for each vertex.

I have a usage example ![gif_.gif](/attachments/a727ac38-0ad3-4fbd-8009-631d7d4d41e4) The average direction of the two edges for each vertex. ![](/attachments/b911d339-77fb-4110-9ea6-8dc87bfdef1d)

gif_.gif

2.8 MiB

image.png

227 KiB

Ivan-Eduati commented

2023-11-16 10:55:04 +01:00

It seems to work!
As soon as possible I will check out if I can use it to get the most vertical edge connected to a vertex.
Thank you

It seems to work! As soon as possible I will check out if I can use it to get the most vertical edge connected to a vertex. Thank you

👍 1

Matthew Hinson referenced this issue from a commit

2024-05-31 23:18:41 +02:00

Geometry nodes: Extend explanations for the mesh topology nodes

Matthew Hinson closed this issue

2024-05-31 23:18:42 +02:00

Blender Bot added

and removed

labels 2024-05-31 23:18:43 +02:00

Matthew Hinson commented

2024-05-31 23:23:18 +02:00

I took a look at the page and was similarly confused... Had to dig into Blender's source code before I finally understood how this node works. Turns out: the Weights input is special and always gets evaluated in the Edge domain, no matter what domain you're using the node in.

I reworked this page as well as the others, adding an example setup that actually demonstrates how to find the most vertical edge.

I took a look at the page and was similarly confused... Had to dig into Blender's source code before I finally understood how this node works. Turns out: the Weights input is special and *always* gets evaluated in the Edge domain, no matter what domain you're using the node in. I reworked this page as well as the others, adding an example setup that actually demonstrates how to find the most vertical edge.

Matthew Hinson referenced this issue from a commit

2024-05-31 23:55:54 +02:00

Geometry nodes: Also mention the Evaluate At Index node in the mesh topology nodes

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"Edges of Vertex" Node domain #104435