And you'd probably want to use a kalman filter to prevent a bunch of jumping around as extra IR points are detected (there's a lot of random IR in a lot of people's rooms.) Sorry for the noise, I didn't think of that until after I submitted the original reply.
On Thu, Aug 7, 2008 at 10:41 AM, Luke Paireepinart <[EMAIL PROTECTED]>wrote: > Oh and the resolution of the IR camera is 1024x768, so use that when you're > translating the pixel space coordinates into real world units. (Your IR data > will be the brightness/largeness of the point as one unit, and the X and Y > values as the other units.) > > > On Thu, Aug 7, 2008 at 10:00 AM, Dan Krol <[EMAIL PROTECTED]> wrote: > >> Hmm, I bet it be useful to have a library function that calculates that >> for you. >> >> On Thu, Aug 7, 2008 at 9:33 AM, Luke Paireepinart >> <[EMAIL PROTECTED]> wrote: >> > >> > >> > On Thu, Aug 7, 2008 at 4:53 AM, Hugo Arts <[EMAIL PROTECTED]> wrote: >> >> >> >> you might want to post this on a wiimote development oriented mailing >> >> list/forum. >> >> This is not really a pygame-related question. At least include some >> >> additional >> >> details. Your question is really vague. >> >> >> >> Perhaps you will also benefit from reading this: >> >> http://www.catb.org/~esr/faqs/smart-questions.html#intro<http://www.catb.org/%7Eesr/faqs/smart-questions.html#intro> >> >> >> >> Hugo >> >> >> >> On Thu, Aug 7, 2008 at 11:39 AM, flx <[EMAIL PROTECTED]> wrote: >> >> > Hi all >> >> > >> >> > I'm trying to make a foosball [1] game wth pygame, using the wiimote >> >> > to control the bars. >> >> > >> >> > I've managed to control the rotation using the accelerometers, but i >> >> > can't get the sliding part right. I've been asked to use the ir >> >> > sensors for the sliding movement, but I just can't get it right. >> >> > >> >> > Have someone done this before? is there anywhere i can look for a >> >> > similar usage of the wiimote or ask for help? >> > >> > Just keep track of the 2 biggest IR points, and use trigonometry to >> > calculate the distance to the edge between the IR based on their >> spacing. >> > Then use the default IR spacing of the Wii hardware (and a camera field >> of >> > view of 45 degrees) to calculate how far you are from it. >> > It's pretty simple math. >> > Check wiibrew.net/com/org (whichever it is) and wiili.org, specifically >> the >> > Wii Remote articles. They have some details about IR. >> > Let me know if you have more specific questions about the Wii Remote >> (you >> > can ask me off-list if you want.) >> > -Luke >> >> >> >> > >> >> > >> >> > [1] - http://en.wikipedia.org/wiki/Table_football >> >> > >> >> > -- >> >> > .__.ยทยบ(foolhu!) >> >> > (oO) >> >> > / | | \ >> >> > >> > >> > >> > >
