TJ-Tigger

Why not. I find it fun to learn how this is done and it helps in my coding in Lua if I have a project in mind rather than just reading the code. I know of different projects out there and currently use Spinner and iSilo to go paperless in caching. But I am having fun. Thanks for the help. Tigg

I am just looking for something that falls into the good enough category. I don't know if the way I am doing it is very accurate over long and short distances. I Have been googling for a while to find sites that explain how to do this in a way I can understand and implement. Thanks for the feedback. Tigg

I am playing around with a visual programming tool (which uses LUA) and I am trying to find a way to calculate distance and angle between waypoints. I have found some calculations online but am wondering how acurate they are. I have seen some calculations that use what looks like circumference of the earth in the calculations. Here are the calculations. 1.1: Great Circle Distance between two points The great circle distance d between two points with the coordinates lat1,lon1 and lat2,lon2 respectively is given by: d=acos(sin(lat1)*sin(lat2)+cos(lat1)*cos(lat2)*cos(lon1-lon2)) A mathematically equivalent formula, which is less subject to rounding error at short distances is: d=2*asin(sqrt((sin((lat1-lat2)/2))^2 + cos(lat1)*cos(lat2)*(sin((lon1-lon2)/2))^2 )) 1.2 Great circle course from A to B at A The initial course, tc1, (at point 1) from point 1 to point 2 is given by: if sin(lon2-lon1)<0 tc1=acos((sin(lat2)-sin(lat1)*cos(d))/ (sin(d)*cos(lat1))) else tc1=2*pi-acos((sin(lat2)-sin(lat1)*cos(d))/ (sin(d)*cos(lat1))) endif The course at B can be found by interchanging the roles of A and B and taking the reciprocal course. This is the function I ended up with. function DistAngle(nlat1, nlon1, nlat2, nlon2) pi = math.pi local distance = 2 * Math.Asin(Math.Sqrt((Math.Sin((nlat1 - nlat2)/2))^2 + Math.Cos(nlat1)*Math.Cos(nlat2)*(Math.Sin((nlon1 -nlon2)/2))^2)); if Math.Sin(nlon2 - nlon1) < 0 then angle = Math.Acos((Math.Sin(nlat2)-Math.Sin(nlat1) * Math.Cos(distance))/(Math.Sin(distance)*Math.Cos(nlat1))); else angle = 2 * pi - Math.Acos((Math.Sin(nlat2) - Math.Sin(nlat1) * Math.Cos(distance))/(Math.Sin(distance)* Math.Cos(nlat1))) end return distance *180*60/pi, Math.Deg(angle) end How accurate is this method in calculating distance and angle? Thanks Tigg

If help is needed in distributing them in the Midwest I would be more than happy to help. I am part of a Geocaching and Jeep organizations here in Iowa. Tigg http://www.easterniowageocachers.org/ http://www.trailhogsjeepclub.com/

hoping to get my stats to appear below

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I remember seeing a site where a person could print a sticker to put in a book and then trade in a cache. You could then track that book via this website similar to a where's George tracking site. does anyone have that link?

Cool Rooboy. Might have to see if I can make it.

I was on a flight to Scotland that day or I would have made it. I am looking forward to the next one though. I might set up a coffee meeting here in CR. They just opened a new coffee shop near my house and I thought it might be fun to have a Multicache where the objective is to find the coffee house.

Paperless is so easy if you sign up for the Pocket Queries and the get GPX Spinner. Once you spin a GPX file it is in html. I then use iSilo to convert mine to a palm format. If you have a Windoze device you should be able to store the html files directly on the device and access them from the built in browser. I use a Sony Clie that a friend gave me. It works great with the external memory card. I store several files on my palm depending on where I am to be travelling that month.

Just posting to see when it was that I joined. I like that with GC I get out a lot more to parks that I never knew existed and having a lot of fun. I am a little amazed with the PBS (Political (or Park as it might be) Bull s***e) that is taking place with the parks and approving caches. I guess it is good that they are putting rules together but I hope that it doesn't ruin the sport. The same thing has happened in the sport of off-roading. The few uninformed or uncaring of those who participate ruin the sport for the rest of us who CITO and take care when we cache. Tigg

I would be up for a shot. My neighbor has a canoe, I will ask if I can borrow it. I am out of the country right no, however. Will be back next week.

I thought I saw an article on keenpeople.com about increasing the memory on the GPS V. Has this been done?

quote:Originally posted by rjo:Hello Everyone, I've got the RINO 120. What all do I have to purchase to have navigation in the car with my laptop software and/or hardware wise. Also, I am in Canada if that makes a difference for what mapping software I can use, etc. Thanks much! I have done this several times with my GPS V. I have used MS Streets and Trips and Delorme Street Atlas. Both are good products and they each have their high points. MS S&T is faster in finding location and POIs but I like the power of DSA. Street Atlas also has voice commands and accepts voice input. You can ask "Are we there yet?" and it will tell you. Quite novel feature. As far as connecting them I bought a cable from GPSGeek on e-bay. Very cost effective and quick to ship. I don't know if he has cables for the RINO or not. But if your RINO came with a cable to hook to the computer it should work with either of these maping programs. If you get MS S&T make sure you get 2004 edition very cheap with a $10 MIR at best buy or other store. The latest version updates your position every second compared to the 2003 version that updated every 15 seconds. But with the old version you could download a hack that would make it update every 1 seconds. Have fun.

quote:Originally posted by Eswau:The Garmin Portable Mount P/N 010-10306-00 MSR $35 is the best way to go. It Thanks - just put an order in for one ($26) Eswau Always remember that you are unique. Just like everybody else. Where did you find this for $26?

I am going to Monterrey next week and can't find maps for my GPS V or PC. Are there any online sites?

I think this can be done with the GPSV. The startup screen text can be changed to what every you want by hacking on of the files when you update the rom on the GPS. I have also seen a page that discussed creating your own basemap with a graphics program, I would think that if you could create your own basemap you could then erase the current one as well. I will see if I bookmarked the pages or not.

Maybe it is time we got one going!

Yes, Look at Delorme with the Xmap Handheld and they sell a special cable (Sony CLIÉ™ Handhelds Length: 6" Model compatibility: This GPS adapter cable works with the following Sony CLIÉ models: PEG-N710C, PEG-S300, and PEG-610C). I looked into this as well, but I have not purchased it. I decided to wait for the updated version that will support HiRes hand held devices XMap Handheld Requirements Cables

With the Boring Log entries thread going around I thought it would be good to have the fun ones with their own topic as well. Last night I went on a my Cinco de Mayo Critter Caching Adventure. I had fun with my logs and you can read starting at Right Side of the Tracks Let me know what you think of the logs.

I use GPSBabel to convert to CSV and then use the Data import wizard on MS S&T to import it. I like Geobuddy and can't wait for TopoGrafix to come out with version 2. The problem with Geobuddy is that I cannot get it to open the GPX files from GC.com. Maybe that is just me.

I am now a Charter Member.