Should display names of object properties in view

protegeproject / ontograf

Protege Desktop plug-in that allows visual, interactive navigation of the relationships in OWL ontologies.

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Should display names of object properties in view #10

Open heapifyman opened 9 years ago

heapifyman commented 9 years ago

Names of object properties (or whatever you call the arrows that are connecting classes) should be displayed. Currently only the class names are shown which makes the tool completely useless for getting a visual overview of an ontology.

csnyulas commented 9 years ago

Different types of object properties are represented with different types of arrows in OntoGraf. You can turn on the legend for the arrows by clicking on the "Arc Types" icon (showing a blue arrow and a checkbox) in the task bar. This will give you a very nice overview of what everything means on your graph, and more, you are even able to control which type of relations you want to see in your graph.

Cheers, Csongor

On 07/02/2015 03:40 AM, heapifyman wrote:

Names of object properties (or whatever you call the arrows that are connecting classes) should be displayed. Currently only the class names are shown which makes the tool completely useless for getting a visual overview of an ontology.

— Reply to this email directly or view it on GitHub https://github.com/protegeproject/ontograf/issues/10.

heapifyman commented 9 years ago

I know that "feature".

But once you have a somewhat complex ontology and more than say 20 object properties, this list becomes

a mess of colors that only differ very slightly - maybe I'm a bit color blind but I cannot immediately grasp the difference between two different shades of purple and compare them two two thin lines in another part of the screen, so I basically have to guess which line means what
too long to fit on the screen - so I have to scroll to see what a specific line in the diagram is supposed to mean

In short, I think this "solution" offers very poor usability.

heapifyman commented 9 years ago

How do I re-open this issue?

csnyulas commented 9 years ago

I reopened the issue for you, although we are not planning to work on this in the near future. Maybe somebody will be interested in contributing.

csnyulas commented 7 years ago

This feature was requested by another user on our mailing list: http://protege-project.136.n4.nabble.com/ObjectProperty-Visualization-in-Protege-td4667446.html

csnyulas commented 7 years ago

Regarding the disadvantages of the current solution listed by @heapifyman, just wanted to note that if you have a complex ontology with a lot of relations, and you try to visualize a set of classes having a large number of relationships among them, adding all those labels to all the arcs will make an even bigger "mess" on the graph, making it potentially totally unreadable. Just a thought to consider.

lingvisa commented 7 years ago

Have this requested feature is definitely helpful in many senses. To visualize a subgraph and take a snapshot to a PPT slide, it's extremely nice to be able to display object property, which is an essential part of most ontologies.

fahedAlkhabbas commented 6 years ago

I am really looking for this feature!

eric-jahn commented 2 years ago

It would be great to be able to see the data properties that are in the domain of a given class. It would be good to see the range of that property as well, next to the property name, within the class.