TheDingos Posted May 31, 2003 Share Posted May 31, 2003 Ok, we're still new to this cool sport but we're stuck. A cache we're trying to find is listed in radians. I've searched the message boards and even the FAQ's and glossary and can't, for the life of me, figure out how to convert it. I'm blonde, so a little challenged. Please help if you can. Thanks~ Quote Link to comment
+Rich in NEPA Posted May 31, 2003 Share Posted May 31, 2003 It's really quite simple. There are (2 x pi) radians in a circle, such that: 1 radian = 180/pi degrees, or: 1 degree = pi/180 radians, or: 1 radian = approximately 57°17'44.9". ~Rich in NEPA~ --- A man with a GPS receiver knows where he is; a man with two GPS receivers is never sure. --- [Edited typo—I meant " instead of ' for seconds above.] [This message was edited by Rich in NEPA on June 01, 2003 at 06:19 AM.] Quote Link to comment
Trogdor! Posted May 31, 2003 Share Posted May 31, 2003 Webster: Radian, a measure of a central angle subtending an arc equal in length to the radius: equal to 57.2958 degrees. When in trouble, when in doubt, run in circles, scream and shout! Quote Link to comment
TheDingos Posted May 31, 2003 Author Share Posted May 31, 2003 Ok, now that I'm even a little more confused! lol I think I need to rephrase my question. How am I supposed to convert radians into waypoints I can send to my GPS? Not too great with math, so a simple explanation in laymen's terms will do. Thanks for the previous help to those who responded! Quote Link to comment
geoStrider Posted May 31, 2003 Share Posted May 31, 2003 Post what you need converted and I'll be glad to help. That would be the easiest approach. "I've never been lost, but I was a might bewildered for three days once." - Daniel Boone Quote Link to comment
+Renegade Knight Posted May 31, 2003 Share Posted May 31, 2003 Radians are handy in calculus and that's about it. Geo Strider is on the right track though. You need to pose your problem so we can take a look at it and then tackle solving it. Radians dont' translate itno WGS 84 latitude and longitude. So we need to see the problem. ===================== Wherever you go there you are. Quote Link to comment
+EraSeek Posted May 31, 2003 Share Posted May 31, 2003 ''The first coordinates are as follows and are in Radians: N 0.83493264 W 2.13319203 '' So, ok, you know that in Mill Creek north Latitude is going to be 47 degrees and some minutes and west longitude is going to be 122 degrees and some minutes, so experiment around with Rich in Nepa's figures until you find the right fit. Or do like I did, grabbed my teenager and had him work it out for me. After you have degrees in decimals, you will have to times the decimal portion by 60 to get minutes, thus 47 degrees 51.xxx minutes "See the wonderous works of Providence! The uncertainty of human things!" Geo.Washington Quote Link to comment
+Cachetrotters Posted May 31, 2003 Share Posted May 31, 2003 For my own sanity, I kept all figures in decimal format, which returns the answer in decimal degrees. The GPSr can convert them back if you just enter N DD.dddd and W DDD.dddd. Using the Webster figure of 57.2958 deg/rad, just multiply that by the north clue-->0.83493264 rad. The rads cancel and you're left with decimal degrees of 47.8xxxx. Same with the other. 57.2958 deg/rad x 2.13319203 rad = 122.2xxxx degrees (rads canx again). Dimensional analysis seems to indicate that these are correct, with minor error because Webster's radian may be truncated. Gosh, if this is right, maybe they'll give me my high school diploma after all these years. don OOPS--adjusted the figures to not give away the entire answer. Sorry. Quote Link to comment
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