Bug 116736

Please include a link or something, so it will be obvious what you are talking about.

The following is a link that gives several examples of what the morph transition can do, as well as an explanation of how it works starting 2 minutes in to the video:
https://www.youtube.com/watch?v=8xqGZ6eyrKM

The following video demonstrates how this morph transition can be used to replicate the Prezi panning and zooming effects:
https://www.youtube.com/watch?v=uYu4cnSEcwY&t=452s

Ok -> NEW

Created attachment 145656 [details]
Sample Template Using Morph

(In reply to Daniel from comment #5)
> Created attachment 145656 [details]
> Sample Template Using Morph

This evidence template may be help to develop and debug in LibreOffice.

*** Bug 126027 has been marked as a duplicate of this bug. ***

Sounds like an "automatic path" animation as slides transition. Caolan, want to work on it - or mentor a GSoC project? :-)

As I understand it, 'Morph' (from MS PowerPoint) or 'Magic Wand' (from Apple Keynote) is essentially a transition mode by AUTOMATED COMBINATION of OBJECT-BASED ANIMATION (like, move, scale, dissolve-disappear, dissolve-appear).

For a transition from SLIDE-A to SLIDE-BN, this auto-combo transition has to do these things:

[STAGE 1]
Compare SLIDE-A and SLIDE-B to analyse objects on each slide for their size and location.

[STAGE 2]
Apply appropriate animation to each object according to the following categories:
[2.a]For objects that are common to SLIDE-A ad SLIDE-B:
  [2.a.i] For objects with different sizes, apply scale at an appropriate factor.
  AND (simultaneously)
  [2.a.ii] For objects with different locations, apply move on an appropriate path.
[2.b] For objects that are only on SLIDE-A or SLIDE-B:
  [2.b.i] For objects that are only on SLIDE-A, apply dissolve-disappear.
  AND (simultaneously)
  [2.b.ii] For objects that are only on SLIDE-B, apply dissolve-appear.

The end result is that SLIDE-A appear to transition to SLIDE-B smoothly as if by 'morphing' or by 'magic'. 

It will be wonderful if someone can work on this to make it available in Impress.

Perhaps, one can generalize math operations for morph by linear interpolation for all numerical properties. This can be anything, font size, position, rotation, opacity, shadow distance/blur etc.

One thing I am worried about are copied objects and don't now how LO handles this. How can LO link 2 objects between two slides, which need to be transitioned?

This would be a great feature though.

(In reply to Saren Tasciyan from comment #10)
> Perhaps, one can generalize math operations for morph by linear
> interpolation for all numerical properties. This can be anything, font size,
> position, rotation, opacity, shadow distance/blur etc.
> 
> One thing I am worried about are copied objects and don't now how LO handles
> this. How can LO link 2 objects between two slides, which need to be
> transitioned?
> 
> This would be a great feature though.

Based on Powerpoint tutorials I've seen, it connects objects between slides using a label applied to the selection. The naming scheme format for morphing automatically uses the label with "!!" (e.g., !!Shape1). I don't have Powerpoint, so I'm uncertain if this is entirely necessary.

Perhaps the "Name" property could be used for this, though currently it appears that the same custom name can only be applied to a single instance in the whole presentation.

I hope to add a morph feature in the next version of impress

*** Bug 161472 has been marked as a duplicate of this bug. ***