How to move the endpoints of a ModeLink-DrawingItem (or a DrawingLink)?

[RalfMieke]

How can I, using the Diagram API, move the endpoints of a ModeLink-DrawingItem (or a DrawingLink)? Neither setting the bounds (top, left, height, width) not by setting the coordinates of the “DrwLine_Points”-Points works.

[jhorber · Accepted solution]

Hello Ralf

There is indeed no function for this.

A solution is to add extra points and keep original extremitives with orthogonal lines

See the article Diagram API Tutorial (MEGA 2009 SP5) page 6

Extract

Modifying the points of a line is done via a special interface. To be successful, the new points
collection must keep the original extremities coordinates (the first and the last points). If the
line is orthogonal, extra care must be taken to ensure that the new point collection is
orthogonal; otherwise the line points will be reset.