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Forum Index » VUE 3.0 Beta Feedback
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Pete Z


Joined: 12/15/2009 18:07:11
Messages: 3
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Hey there, I'm just getting started with VUE 3.0 beta4b2 - it's great, but hitting a small snag:

Node 1 is on layer A
Nodes 2,3,4 are on layer B
Node 1 has links to nodes 2, 3 and 4.

If I hide layer A, Node 1 correctly vanishes. I would expect all of the links from Node 1 to vanish also. However, that is not the case - not all of the links vanish. For example, the link from Node 1 to Node 2 may disappear, but links from 1->3 and 1->4 incorrectly remain.

I am creating links using the Link Tool on the toolbar.

Thanks!
Pete.
melanie st.james


Joined: 08/08/2008 11:36:13
Messages: 124
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Hi Pete,

We are looking into the Links and Layers issue you described. From what we can tell, the issue seems related to the layer onto which the links reside. If the links are on the layer that is being hidden, then the links will hide. If the links are on the layer that remain visible, the links will remain visible, even though the nodes linked to the links are hidden, resulting in dangling links.

We would be happy to look at your map if what I described is not what's happening with your map. The point you bring up is an excellent one to be considered in terms of user experience. You can post your map here, or send it to vue@elist.tufts.edu

Best,

Melanie
Brian Goodmon


Joined: 03/18/2009 10:38:09
Messages: 154
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Hi Pete,

The way VUE works now, links reside on a layer just as nodes do and to get the links to hide they have to be on the layer you hide. You bring up a good point, though, which I'll paraphrase as: if node A links to node B and they are on different layers, the only way to get the link to hide when node A hides AND when node B hides is to have the link on a third layer and hide that third layer when you hide either of the other layers. That's an extra step, which is extra work.

I can imagine changing VUE to hide links when either of their endpoints are hidden, but we'd have to think about it to make sure there wouldn't be any confusing situations. The beauty of the current model is its simplicity, but perhaps at the cost of making extra work.

One thing we can certainly think about doing is to make the links more visible in the little thumbnail diagrams that are shown on the layers window. Right now it's really hard to see the links in the thumbnails. If they were more visible it might give you the visual clue that they belong to layers just like nodes, which would make their hiding/showing behavior more intuitive.

Thanks for your posting!

Regards,
Brian

This message was edited 1 time. Last update was at 12/17/2009 16:17:51

Pete Z


Joined: 12/15/2009 18:07:11
Messages: 3
Offline

Thanks Melanie and Brian for getting back to me so quickly.

Is there any way to move an existing link to another layer? That would solve the problem in the meantime.

Here's my usage scenario, in case I'm going about this in the wrong way:

- I'm a student working on a neuroscience project, and using VUE to organise my literature review.
- Scientific papers are published regularly on the function of particular areas of the brain; each paper refers to one or more brain areas. It refers to them via co-ordinates (e.g. -12, -18, 6 is part of the brain known as the thalamus).

So, in VUE:

- I have an "anatomy" layer containing a node for each broad brain area (e.g. "thalamus")
- I have a layer for each scientific paper, each containing a single node with links to the brain areas it refers to on the anatomy layer. The text of the link describes the exact co-ordinates of the brain area described.

So, if I want to see which brain areas a single scientific paper refers to, I turn on that paper's layer. If I want to see all papers referring to a single brain area, I turn on all layers and look for the relevant links.

I hope that makes some kind of sense! I'll email you a VUE map to elucidate.

Thanks,
Peter.
Brian Goodmon


Joined: 03/18/2009 10:38:09
Messages: 154
Offline

Hi Pete,

Yes, there is an easy way to move a link to a different layer:

1. select the link
2. open the layers window
3. select the layer you want to move the link to, or just hover the mouse over it; you'll notice an icon appear that looks like a circle with an arrow in it -- the tool tip will say "move selection to this layer" -- click that icon and the link will now be on that layer.
4. save your file -- moving the link to a different layer doesn't mark the map as modified, so if you don't save the file you'll lose your change when you close the file because VUE won't warn you. This is a bug that I just noticed and I'll open a bug report for it.

Thanks for sending your map -- I'll take a look at it. It's always fun to see how people are using VUE. I hope you're finding it useful and feel free to let us know any ideas or suggestions.

Regards,
Brian
Pete Z


Joined: 12/15/2009 18:07:11
Messages: 3
Offline

That fixed it, thanks!
 
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