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RobinL

Segmmented elastic connecting lines in Visual Chartform

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While experimenting today, I found what I believe to be is an undocumented feature.

 

There are 6 types of elastic lines that you can select to join between 2 conection ports on boxes (and also to intermediate connection ports). When the object at the end point of a line is moved then the joining segment adjusts accordingly.

 

There are 2 forms of line

orthogonal - segments always horizontal or vertical

oblique - segments not constrained

 

There are 3 annotations for the end points of the lines

nothing - just the line is shown

arrowhead at one end

arrowhead at both ends

 

This gives the 6 types.

 

I discovered today that for the oblique line types

at each intermediate location where you click the mouse becomes a way-point.

 

Thus you can easily contruct an elastic multi-segmented path bewtween 2 locations on a chart (e.g. linking married cosins on a chart).

 

The intermediate points :

- are saved correctly in a .VC2 file and are redrawn as expected on re-opening

- may be edited by selecting the line and then "Edit Vertices" icon on the tool bar. That is, this line acts like other multi-segmented lines or shapes for editing.

 

This will certainly make manual annotation of charts much easier to perform.

 

The orthogonal line types are do survive the save-then re-open test but in the prosess loosing some of their properties in that saving or redrawing process.

 

RobinL

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