# grassrootsmapping grassrootsmapping

Author Comment Last activity Moderation
Philgib "Hi, Great project. I do multi rotors, rc planes, blimp and kite pics. Your pictures will be 100 times better with a Mobius, plus a waterproof ca..." | Read more » almost 9 years ago
ajawitz "RE:-High Winds- Has anyone posted a note about making a DIY wind speed meter? It would've been handy to get a rough idea of how close I was to t..." | Read more » almost 9 years ago
ajawitz "RE: Kite Reels and Line- It was definitely 50 Ibs line but now that I know better I made sure to order a Yo Yo Reel with 150 Ibs Dacron this time..." | Read more » almost 9 years ago
ajawitz "RE: Mapknitter- I converted the images to JPGs and uploaded them again. The export status dialog then reads (Status: Warping 1 of 6, 2 of 6 etc...." | Read more » almost 9 years ago
warren "Indeed there's something about the images themselves. I hate to ask, but could you try to convert them to jpg and re-upload them? I'm very sorry bu..." | Read more » almost 9 years ago
warren "I can't tell if there's something it's choking on in your images (maybe 'cause they were screenshots from VLC?) or it's having trouble downloading ..." | Read more » almost 9 years ago
warren "Hmm, i'm not sure what's going on with that mapknitter export. Looking into it... thanks! " | Read more » almost 9 years ago
cfastie "Great report. The mini bottle and 3D printed Picavet will go in the Public Lab record books. And what a fantastic place to fly. Is that public land..." | Read more » almost 9 years ago
mathew "We generally prefer the manual "yo-yo" reels because of their durability. Those little winders you're using definitely break at high loads. I hav..." | Read more » almost 9 years ago
ajawitz "Don't get me wrong. I didn't mean to come off as "the drone guy" (and every DIY tech forum seems to have one these days...) I think my intended p..." | Read more » almost 9 years ago
mathew "@erget awesome! can you join the plots-dev list and we can coordinate on there? A while group of Google Summer of Code students are joining our Dev..." | Read more » almost 9 years ago
mathew "Nice thinking Chris. @code4maine I don't mean to discourage you from acquiring a quad, I just really like kites, and think of coastal areas (even ..." | Read more » almost 9 years ago
ajawitz "cfastie- That seems like the best approach yet. I'm going to forward your suggestion to the teacher in charge of field collections though we might ..." | Read more » almost 9 years ago
cfastie "If you have Garmin GPS units, there might be a better way for students to georeference photos. If the Garmin units save track logs, with a waypoint..." | Read more » almost 9 years ago
erget "@code4maine - I haven't submitted a research note, unfortunately. What you describe, however, is pretty similar to what I'm planning. I have to say..." | Read more » almost 9 years ago
mathew "You're right that if you put together a kit there are some quads around $500 that are fairly capable, but there is some significant setup involved ..." | Read more » almost 9 years ago ajawitz "$300 would admittedly be a challenge, but a $500 quad with decent lift and up to an hour of flight time is not only possible, I've seen it done a n..." | Read more » almost 9 years ago mathew "@code4maine a$300-400 quad will hardly fly long enough to map much (10 minutes), and is likely to get blown going to get blown away in the wind. ..." | Read more » almost 9 years ago
mathew "@erget-- are you using entirely matched stereo pairs, or are you moving to do a SFM-style unmatched parallax extraction? We have a big team worki..." | Read more » almost 9 years ago
mathew "@code4maine-- certainly, doing bluetooth coupling with a home-built Gps unit and the rest sounds like a bit of a pain in the field. I'd just take..." | Read more » almost 9 years ago
ajawitz "That sounds like a very interesting project! Have you submitted a research note for it? I for one would definitely be interested in exploring DIY ..." | Read more » almost 9 years ago
erget "If you're wanting to use a multicoper for mapping, I'm working on automating many parts of that workflow for my dissertation. By the end of the sum..." | Read more » almost 9 years ago
ajawitz "That sure would be amazing if all we had to do was take a picture with the iPads the students are using to get coordinates! But my guess is we wou..." | Read more » almost 9 years ago
mathew "One of the other features we're adding to mapknitter is that it will recognize the geo coordinates stored in images' EXIF data, and the ability to ..." | Read more » almost 9 years ago