Re: Re: snap to a line

[dynvec gmail com]

> Date: Tue, 08 Feb 2011 21:14:49 +0100
> From: Hans Breuer <hans breuer org>
>
> At 08.02.2011 19:49, dynvec gmail com wrote:
> > > Hello,
> > >
> > > As this is my first message to this list, let me thank you for providing
> > > a way to give user support.
> Welcome to dia-list
Thanks! :)
> > > I'm creating a UML diagram and I need to add an Association Class so
> Sorry, I don't know an "Association Class", AFAIK there is only support for 
> Association between classes.
http://www.ibm.com/developerworks/rational/library/content/RationalEdge/sep04/bell/#N1036B
> > > I'll need to link the class to the previous association (of 2 other
> > > classes).I looked at the definitions of the tools on the UML sheet and
> > > nothing seemed to fit
> What's wrong with the seventh button in the UML sheet? At least the tooltip 
> "Association, two classed are associated" should give the final hint, even 
> if the icon does not.
Oh! By the look of the Icon I though the middle arrow was a second end
to one of the sides, I though it was some kind of advanced UML so I
stayed away from it.
> > > so I used a line (on top of the sheet selector),
> > > although I would've preferred to use a UML tool, so I snap one side to
> > > the Association Class and the other I try the best to snap to the middle
> > > colored dot
> Are you talking of the orange square or of the cross within the class?
The orange square of the association (line).
> > I'm reminded of my
> > > failure each time I move one of the 2 previous classes and there's a gap
> > > between the lines. How would you suggest I proceed?
> First of all a common understanding of what association are supposed to be 
> would be helpful. (E.g. for me there is no need to associate associations - 
> aka. connect lines with other lines - but association are always between 
> two classes (or other elements))
I think that previous link (IBM) should clear that out.

Please note that I created a sample for Steffen that you might also find
useful.


> Date: Tue, 08 Feb 2011 22:14:55 +0100
> From: Steffen Macke <dia diagramr biz>
>
> Hi DynV,
>
> On 02/08/2011 09:42 PM, dynvec gmail com wrote:
> > > I published a sample of my problem on
> > > http://dynv.qc.to/content/diagram-sample-association-class
> Thanks. It's much easier to discuss your problem now.
> I would suggest that you replace your "UML - Association"
> with a "Standard - Line" object, because it contains the connection point in
> the middle that you are looking for. This way, you'll be able to move your
> classes A, B and C around. Do you see any problems with such an approach?
> I think you've described this solution in your original email already.
>
> Don't be afraid to use objects in a different context - as long as they 
> produce
> the outcome you are looking for.
>
> Regards,
>
> Steffen
No need to say hi again, it's not like the message dated a day. ;)

If you need more samples, feel free to ask. I really need the item
between class A & C to be association as they have items for each side
(Role, Multiplicity & Visibility) that I'd need to emulate with other
non-UML tools, also it's just a wasted of time, I'd rather stay with
this current solution ; thanks for proposing though.

The thing is I really prefer UML tools are they have inherent properties
for such work (UML), not only is it a preference but they save time.