<div dir="ltr">The last time I checked, the width was as pressure in evdev,<div>but was not available in the gtk event.</div><div>Another option is prepare circles of may be 5 mm and paste them behind the figures,</div><div>
in different positions. A program can detect that circles as touches,</div><div>and recognize the figure using the relative postions. Our touch screen</div><div>can detect 4 touches, but can be confused if are aligned in horizontal or vertical.</div>
<div><br></div><div>Gonzalo</div><div><br></div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Oct 25, 2013 at 8:50 AM, Jon Nettleton <span dir="ltr"><<a href="mailto:jon.nettleton@gmail.com" target="_blank">jon.nettleton@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote"><div class="im">On Fri, Oct 25, 2013 at 1:40 PM, Manuel Quiñones <span dir="ltr"><<a href="mailto:manuq@laptop.org" target="_blank">manuq@laptop.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>2013/10/24 Sameer Verma <<a href="mailto:sverma@sfsu.edu" target="_blank">sverma@sfsu.edu</a>><br>
><br>
> I saw some very cool features in a presentation today at the Internet<br>
> Archive. The presentation was by Eitenne Mineur, as part o the "Books<br>
> in Browsers 13" event.<br>
><br>
> They are using paper and other simple objects that have kind of<br>
> conductive patterns to create story platforms, but with interactivity.<br>
> Start with a story screen, place a paper cutout of one of the<br>
> characters, and the story comes to life. Place a second character, and<br>
> the scene changes.<br>
><br>
> All very interesting ideas for us to use on the XO-4 Touch, although<br>
> the XO4 does not use capacitance, but the idea is very cool.<br>
><br>
> <a href="http://volumique.com/" target="_blank">http://volumique.com/</a><br>
<br>
</div>Wow, this is very inspiring. Somebody should try this technique on an XO-4.</blockquote><div><br></div></div><div>Unfortunately because of the way our touch technology works, this exact implementation won't work. However our touch technology is actually nicer because you don't need special material to activate the touches. I think what would work well for us would be an activity that allowed you to program what shape/character was attached to different size touch points. Then use small wooden/plastic disks of different sizes glued or clipped to the back of the cutouts to trigger the touch events and let the program know what story to tell.</div>
<div><br></div><div>smallest disk = dog</div><div>medium disk = frog</div><div>large disk = frisbee</div><div><br></div><div>I would have to double check but I think we pass along the touch width as the pressure value for evdev. Should be easy to parse the event and figure out what is on the screen, and should work with 2-4 touches/items.</div>
<span class="HOEnZb"><font color="#888888">
<div><br></div><div>-Jon</div></font></span></div></div></div>
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