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Getting zoom information from inside a ConnectionAnchor [message #234936]

Tue, 30 June 2009 20:28

Eclipse User

Originally posted by: johan.harjono.utoronto.ca

Hi,

I had my own custom algorithm to determine where a connection anchor
should be. It works well when the zoom level is 100%, but not when the
zoom level is any less. I need to take the zoom level into consideration
when I calculate the coordinates.

I know I can access the ZoomManager (and hence the zoom info) of the
diagram from any EditPart, but I don't know how to get the zoom info
from inside a ConnectionAnchor (in which I calculate the anchor
coordinates inside its getLocation())

How can a ConnectionAnchor access the zoom information of the diagram?

thanks,
Johan

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Re: Getting zoom information from inside a ConnectionAnchor [message #234973 is a reply to message #234936]

Wed, 01 July 2009 11:38

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Johan,

I think you can call DiagramFigure.translateToRelative() to translate absolute
coordinates into the "zoomed" coordinates.

-----------------
Alex Shatalin

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Re: Getting zoom information from inside a ConnectionAnchor [message #235140 is a reply to message #234973]

Thu, 02 July 2009 16:58

Eclipse User

Originally posted by: johan.harjono.utoronto.ca

Hi,

Thanks for the idea. Unfortunately it did not work for me.
How about IFigure? is it possible to get the zoom level from an IFigure?

Johan

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Re: Getting zoom information from inside a ConnectionAnchor [message #235147 is a reply to message #235140]

Thu, 02 July 2009 18:03

Eclipse User

Originally posted by: johan.harjono.utoronto.ca

Hi,

I found a workaround, it's not the most elegant solution but it works :)
I basically set it so that a few figures can have access to their
EditParts, and from there I can access the diagram's ZoomManager

cheers,
Johan

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