Eclipse Community Forums: Graphiti » Connection to rounded Shapes

Home » Modeling » Graphiti » Connection to rounded Shapes(How to make a connection that ends exactly at the edge of a rounded rectangle?)

Show: Today's Messages :: Show Polls :: Message Navigator

Connection to rounded Shapes [message #1222074]

Thu, 19 December 2013 15:54

Martin Hanysz

Messages: 30
Registered: November 2013

Member

Hello,

I am currently trying to figure out a way to correctly display connections that end at a rounded shape, like an ellipse or rounded rectangle. The problem I have is, that the connection always ends at the bounding box of the shape and not exactly at its edge.

Is there a way to make the connection attach correctly?

I thought of using a ChopboxAnchor to make the connection creation snap to the shape and programmatically create a FixpointAnchor at the point where the edge of the shapes GraphicsAlgorithm and the ray from the ChopboxAnchor to the last bendpoint of the connection intersect. Although that seems feasible, I'd rather ask if there is a more simple way of doing this (like some special sort of Anchor I am not aware of yet).

Best regards,
Martin

Report message to a moderator

Re: Connection to rounded Shapes [message #1222381 is a reply to message #1222074]

Fri, 20 December 2013 09:23

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

Martin,

that should work out-of-the-box. The Sketch test tool has Ellipses as shapes
and connections go straight through to the edge of the shape. It uses
ChopboxAnchors and I don't think there is any special logic behind...

Do you have any shapes (maybe inactive or invisible) around your shapes?

Michael

Report message to a moderator

Re: Connection to rounded Shapes [message #1229911 is a reply to message #1222381]

Fri, 10 January 2014 14:24

Martin Hanysz

Messages: 30
Registered: November 2013

Member

Dear Michael,

I investigated a little further on the problem and found out that the Sketch test tool in fact only handles ellipses correctly. If you draw a connection to a rounded rectangle and position it in a way that the connection ends at the corner, the connection ends at the bounding box. The attached picture shows an example.

The problem becomes more obvious if the corner radius of the rounded rectangle is set to a larger value.

Do you have any ideas how to solve this issue? I guess all our diagrams would look more sophisticated if the connections would end correctly at the edge of a rounded rectangle Smile

Best regards,
Martin

Attachment: ConnectionToRoundShapes.PNG
(Size: 11.44KB, Downloaded 187 times)

Report message to a moderator

Re: Connection to rounded Shapes [message #1231004 is a reply to message #1229911]

Mon, 13 January 2014 15:31

Michael Wenz

Messages: 1931
Registered: July 2009
Location: Walldorf, Germany

Senior Member

Martin,

hm, that's right.

I gues that is caused by the clipping that's used for rounded rectangles in
the Graphiti framework and needs to be changed there. Would you please file
a bugzilla for this issue?

Thanks,
Michael

Report message to a moderator