Firstly thank you for creating and maintaining Sozi. It is wonderful software and the only thing I was able to find to create interesting, dynamic presentations with a great level of control. I hope the Sozi becomes more popular with time and that it receives more support for further development. It has great potential.
I am new to Sozi (I only learnt about it this week), so perhaps my question comes from inexperience.
I created a large .svg file using inkscape with text and vector graphics. I used this to make a presentation using Sozi, including two layers and a stick-figure animation as well as "slides" with bullet points.
My question is centred on the technique of revealing parts of an image in successive frames by means of the crop feature (this is very useful for gradually revealing bullet points, for example). This more or less works. However, I found that when I modify the .svg and/or the Sozi presentation, sometimes changing a frame in one place can cause misalignment in a different frame (not necessarily an adjacent frame - sometimes they are far apart). I am sorry that I cannot be more precise. The problem is that since the behaviour is unexpected and my canvas and presentation are large, I have not yet been able to pinpoint the cause. This is further compounded by the fact that the "selected" area to be cropped does not necessarily fit in the window inside the Sozi editor, and there seem to be separate "selected" areas for each layer, making it hard to determine what is going on "behind the scenes". Furthermore, there seems to be some hidden dependence between frames (for instance, the "link to previous frame" is sometimes striped, perhaps indicating a partial dependence).
I would like to know how to arrange the cropping and zooming such that each frame behaves independently of all the others.
There is a further but perhaps related issue. I find it quite awkward working with two or more layers, especially when using the cropping feature. (In my case I needed two layers since this was the only way I found of creating an animation.) It seems that in Sozi it is very easy to inadvertently select both layers of a frame and then the crop/zoom in/zoom out apparently affects both layers simulateously. Quite often one is working mainly with one layer (the other layer is needed perhaps only in a small part of the presentation for an animation) and then one can get unwanted material creeping into the wrong frame from the other layer, or disappearing completely and hard to locate later when needed. Unless there is some easy way of avoiding this problem, I suggest that clicking on a frame should only highlight the cell in the most recently used layer. Then perhaps multiple cells (for different layers in the same frame) could still be selected manually if desired. Or perhaps you can suggest a alternative way of handling layers to avoid this problem.
Despite these difficulties I've experienced, I plan to continue learning and using Sozi, and to recommend it to others. As I said it is the best dynamic presentation software I have found.
Thank you in advance,