Issue 21037 - Add more 'connection pointsÂ’ to ellipse shape for drawing (UML) state-diagrams
Summary: Add more 'connection pointsÂ’ to ellipse shape for drawing (UML) state-diagrams
Status: CLOSED IRREPRODUCIBLE
Alias: None
Product: Draw
Classification: Application
Component: ui (show other issues)
Version: OOo 1.1 RC4
Hardware: PC Linux, all
: P5 (lowest) Trivial (vote)
Target Milestone: ---
Assignee: wolframgarten
QA Contact: issues@graphics
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-10-11 01:51 UTC by anthonymerhi
Modified: 2003-10-12 11:30 UTC (History)
1 user (show)

See Also:
Issue Type: ENHANCEMENT
Latest Confirmation in: ---
Developer Difficulty: ---


Attachments
Example of state-transition diagram done in Draw, showing need for more connection-points (144.43 KB, image/jpeg)
2003-10-11 02:22 UTC, anthonymerhi
no flags Details

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Description anthonymerhi 2003-10-11 01:51:46 UTC
Currently, the ellipse shape in Draw offers only 4 'connection points' (points
to which a curve shape can connect).  These points are at the north, south,
east, and west extremities of the ellipse.  However, when drawing state-diagrams
(suddenly fashionable with UML!), a complex diagram appears a little cluttered
because each ellipse (i.e., state) provides only 4 points to connect curved
arrow-lines (i.e., state-transition lines).  The angle of the bow of the line is
also a little odd (not so rounded). Also, it is not possible to represent a
state-transition back to the same state (a line which exits a state and
re-enters the same state at the same or a nearby point on the ellipse).

Business requirement: Add more points to the ellipse shape so that (UML)
state-diagrams appear clearer, especially when drawing complex diagrams with
many transitions to and from a given state. Also, allow a curved line to begin
and end on the same connection point to represent the reflexive state-transition.

Proposal: Add at least north-east (at 0+45 degrees), south-east (at 90+45),
south-west (180+45), and north-west (270+45), or more such points, to give the
user more choices of connection points around the ellipse.  Or, add a special
'state' shape and a special 'state-transition' arrow just for drawing
state-diagrams. (Another possibility might be to add a special UML palette to
the side-bar with all the shapes needed to draw state-transition diagrams.
Comment 1 anthonymerhi 2003-10-11 02:22:37 UTC
Created attachment 10203 [details]
Example of state-transition diagram done in Draw, showing need for more connection-points
Comment 2 wolframgarten 2003-10-12 11:29:56 UTC
Please make the "option bar " visible . Here you have the ability to 
activate the "glue point" modus where you can add as many connection 
points as you like. Refer to the help files to see how this is done.
Thanks for using OpenOffice!
Comment 3 wolframgarten 2003-10-12 11:30:06 UTC
Closed.