alice-teacher Alice 3 Positioning of objects problem

[Margaret Meijers]

Thanks so much Don - that makes sense.  Now I understand it, I'll have to
watch out for that issue as my students are in so many different schools
and the versions they use will always vary to a degree.  I will always need
to have the latest version so that I can access work from any student.
 Obviously those students joining the course later will be using a more
recent version than those who have been enrolled for a few months.
Now that I think of it, maybe if I also install an older version (ie run an
older and newer version of Alice on my machine), I can use the older
version whenever the problem occurs.

Thanks again.  It's great to have support like this!
Margaret


On Sat, Mar 8, 2014 at 4:51 AM, Don Slater <dslater at andrew.cmu.edu> wrote:

> I noticed that you were using different versions...
>
> "At one point we had noticed that the "pivot point" or "center point" of
> the shark was positioned so that it would not sink into the sand when added
> to a scene. However, over time, we found that having the pivot point way
> below the body caused problems with instructions such as "point at" and
> "orient to" ...  So the decision was made to relocate the center for the
> shark... and there were some other object as well... though at this time we
> do not recall which ones they were." (Wanda Dann)
>
> What you are seeing is a result of two different software versions using
> sharks with different pivot points.
>
> Let us know if you have any other questions.
>
> Later,
> Don Slater
>
>
> On Mar 5, 2014, at 8:34 PM, Margaret Meijers <mmeijers at gmail.com> wrote:
>
> > I teach Alice online to primary school students from many different
> schools, and I am starting to think there may be an issue with positioning
> of objects, but I'm not sure quite where the problem lies.   The issue has
> occurred a number of times with students from a couple of different
> schools.  At first I thought it was the kids positioning objects poorly,
> but I'm starting to get suspicious that it's related to different computers
> and versions of Alice perhaps?
> >
> > What happens is that students (probably using a different version of
> Alice 3 to me) make an animation (they are very much beginners) and they
> send it to me for assessment.
> > But for a while I have been suspicious that they are not seeing what I
> am seeing as, frequently, objects seem to be positioned very poorly.  I
> have attached an example, both the alice program, and screen captures of
> what I see.  In the screen capture, the small thumbnail is from the Recent
> category in File >Open and it looks ok, but when I open the animation, the
> shark is sitting below the sand.  Other objects (eg the fish) that appear
> later in the animation are in the correct place (or where I assume the
> student placed it).
> > I have opened the animation on two different computers (one running
> V3.1.81, the other V3.1.77), and I see the same thing on both computers.
> >
> > So my questions:  Is there something obvious that I am missing?  Are the
> students doing something?  Is it possible that it's a versioning issue?
> >
> > Thanks
> > Margaret
> > <Shark attack.a3p><shark
> attack.png>_______________________________________________
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