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ontologically typed links, part 2  XML
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Jack Tanner


Joined: 08/08/2008 11:36:13
Messages: 34
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I already mentioned that it seems wrong that Vue uses CSS -- rather than the loaded ontology -- to determine if something is a link or a node. There's another thing that Vue could do for arrow-headed links if it used ontology information: it could set their direction correctly. If I make a link from one typed node to another, the "domain" of the link should always be styled as the arrow tail, and the "range" of the link as the arrow head.
Jack Tanner


Joined: 08/08/2008 11:36:13
Messages: 34
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I can't make heads or tails (sorry!) of these links. If I draw a plain link (non-ontology), the start node gets the arrow tail, and the end node gets the head. Good enough. But if I draw an ontologically typed link, the start node gets the arrow head, and the end node gets the arrow tail. What gives?
Daniel Heller


Joined: 08/08/2008 11:36:13
Messages: 24
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do you mean draw using the toolbar?

Thinks work ok for me when I drag from the ontology window, but after seeing your post I am seeing what looks like it may be a bug with the elements ontology covalent link and the toolbar button.. will investigate further..

Jack Tanner


Joined: 08/08/2008 11:36:13
Messages: 34
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1. In the Ontologies panel (Ctrl+4), select something that's been styled as a link.
2. In the toolbar, pick the ontology link tool (bug: it has the same tooltip as the regular link tool).
3. Click a start node, drag to end node. The start node gets an arrow head, the end node gets an arrow tail.

I'm not sure what you mean. If I drag a link from the ontology window and above a node, my link ends up embedded as a child of the node.
Daniel Heller


Joined: 08/08/2008 11:36:13
Messages: 24
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I meant that an alternative is to simply drop the link on the vue map and then connect it to your nodes manually.

I've checked in some code that should hopefully fix your bug - I indeed did see the same thing when I used the toolbar the way you describe (looks like a change in the behavior of links dropped onto the map without using the toolbar reversed the direction, but I've changed that back)
Jack Tanner


Joined: 08/08/2008 11:36:13
Messages: 34
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Great! I'm looking forward to the fix. Is the Vue source control public? If not, please release this soon or publish a patch that applies to 2.2.8.
Nikolai Schwertner


Joined: 08/08/2008 11:36:13
Messages: 200
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The VUE source code is available for download through the VUE web site. We encourage contributions from the community to the code.
Jack Tanner


Joined: 08/08/2008 11:36:13
Messages: 34
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Right, but the downloadable code is 2.2.8, meaning that it doesn't include the fix that Daniel describes above. In any case, it's easier to develop against an actual repository than just a tarball.
Anoop Kumar


Joined: 08/08/2008 11:36:13
Messages: 49
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We understand the value of providing access to code repository but can't open the code repository to public right now.

You can get the latest src and nightly builds from the following page:
http://releases.atech.tufts.edu/vue/
 
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