[Libreoffice-bugs] [Bug 136920] EDITING: Granularity of start and endpoint for an arrow drawn into a slide

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=136920

--- Comment #3 from Adalbert Hanßen <adalbert.hanssen at gmx.de> ---
(In reply to Regina Henschel from comment #2)
> In Impress snap options are on by default. That affects changes done with
> the mouse. Disable the options in menu View > Snap Guides.

This really does the trick to get rid off the granularity.

> 
> There a several ways to determine exact position and size of a line:
> 
> A) To make arrow keys only affect one point, select the line, then press
> Ctrl+Tab. Then the first point should slowly blink. Now you can move this
> point with the arrow keys. Next Ctrl+Tab goes to the next point.
> 

This is also a very valuable hint.

> B) Do it numerically by using the Position&Size dialog. Set the Base point
> for the Position so, that it corresponds to the first point of the line.
> Enter the coordinates. OK. Again Position&Size dialog. Set the Base point
> for the Size and the Base point for the Position so that it corresponds to
> the first point of the line. That makes this point fix while resizing. Then
> set width and height to get the desired second point of the line. If you
> want to keep the direction of the line, check "Keep ratio" before entering
> new values.
> 
> C) Set snap points at the desired positions. Enable "Snap to Snap Guides".
> Now you can drag each point of the line to a snap point where it is caught.
> 
> In case you have to work on points of a polyline:
> Press F8 to switch into Point edit mode. Now you can click a point with the
> mouse and drag it to the desired place, or use Ctrl+Tab and arrow keys.
> 
> For your special illustration you have in addition these options:
> 
> D) Do it in Calc and enter the line directly into the chart.

That's another possibility. However one has to place an arbitrary line first
somewhere on the spreadsheet part and later move its start and end point to the
plot, because one can not start or end a line in the plot. But that's feasible
too, although it looks like one is confined to the standard arrow head size.

> 
> E) Use a Linear Regression line in Calc, directly in the chart, and set the
> intersection to the desired start value.
> 
> I suggest "Works for me".

Yes, the main question is solved and no change in the programming is really
necessary to make a graph like the one I wanted to produce.

Only my side finding that the arrow head size change is not honoured remains
open. Shall I create a new bug report for that?

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