
athos
hi, i'm working with reactivision and i'm building a visual feedback of fiducials' positions and movement with GEM.
Since the coordinates given by reactivision range from 0 to 1for y axis and 0 to 1.33 for x axis (actually 0 to 1 as well, but i stretch it to get right values when calculating distances).
Opening gemwindow with the default viewpoint and a window dimension of 640x480, ranges are [4;+4] for y axis and [5.3;+5.3] for the x axis.
I will have to translate and strech the coordinates, but i know that i can change the view in the gem window, so i thought i could just find a view that shows me the [0;1.3]x[0;1] portion of the "gem space".
I know the gem space is 3D and to achieve what i need i should play with the z value in the view message, but i can't figure out how the view modification works. For example, which view corresponds to the default view obtained with no messages?
And, do you think this could be a good "trick", or is it better to just perform a coordinate translation?
thanks,
athos 
athos
hi all,
i'm working on a pd patch for a university project, together with 3 fellows that live far from me, so we need a simple way to limit distance issues. Since mail and attachments is not a comfortable solution, i was thinking about a shared space somewere on the internet, to put files in and share them. Maybe some of you had the same need sometimes, that's why i ask here
I use linux, two of us use mac, one uses windows. The simpler, the better (even a public space without registration would be great, we don't have privacy needs). Any suggestion?
thanks!
athos 
athos
thanks guido, i will just go with the coordinate translation, but i need to translate tuio coordinates to gem coordinates, so i will basically need the inverse of your calculations:
tuioycoordinate * 8  4 = gemycoordinate
tuioxcoordinate * 8  5.32 = gemxcoordinatethe multiplication factor is the same for both axes, since i already strech the x axis as soon as i receive the tuio data (actually, due to the 4/3 aspect ratio, the stretching factor is 1.33... )
thanks a lot!
athos