+naturekid Posted June 19, 2006 Share Posted June 19, 2006 (edited) Hi, maybe someone here can help me. I have 3 positions, say A,B,C and for each position a specific distance/diameter. A= 20 miles B= 15 miles C= 27 miles How do I find the middle of these three circles, I mean where ist the one single overlapping point of the three circles? Hope I could make this clear.... Sorry for my bad englisch Naturekid Edited June 19, 2006 by naturekid Link to comment
+Yellow ants Posted June 19, 2006 Share Posted June 19, 2006 Offhand, I'd say a good topographical map and a compass (ein Zirkel, nicht ein Kompass) would be the way to go Which cache is it? Link to comment
+geo_taz Posted June 19, 2006 Share Posted June 19, 2006 My approach would be to use the "proximity" function on my GPSmap 60Cx. This will draw three circles on the map display of the GPSr. The intersection of the three circles is what you are looking for. Link to comment
+naturekid Posted June 19, 2006 Author Share Posted June 19, 2006 (edited) It is ***** *Edited* Edited June 20, 2006 by naturekid Link to comment
whitetailfan Posted June 19, 2006 Share Posted June 19, 2006 Perhaps I'm too new to understand the question, and therefore what the answer is used for. If you intersect three circles, where all circles overlap the other two, you are left with an area, not a point. Link to comment
heckle Posted June 19, 2006 Share Posted June 19, 2006 If you intersect three circles, where all circles overlap the other two, you are left with an area, not a point. Unless if all three circles intersect at one common point. Link to comment
+Kryten Posted June 19, 2006 Share Posted June 19, 2006 If you are doing this in the field and don't have a map, enter the three waypoints into your GPS but name them as "20 miles", "15 miles" and "27 miles". Set your GPS to display the nearest waypoints and you will see all three on the same screen with their distances live and updating. Drive until you are 20 miles from "20 miles" etc. Link to comment
+Renegade Knight Posted June 19, 2006 Share Posted June 19, 2006 The two accurate ways to do this are to use Trigonometry (Pythagoreans theorem) To calculate the intersection. Or you can use a CADD program and draw the circles in their actual locations then ID The point of intersection. You have the exact point with two circles. The third just tells you which of the two intersecting points to solve for. Link to comment
+naturekid Posted June 19, 2006 Author Share Posted June 19, 2006 I got it. I used Mapsource and the proximity function. Entered the tree coordinates and "proximitied" them and where all three circles overlaped, the cache was! Thanks for the help! Naturekid Link to comment
+Markwell Posted June 19, 2006 Share Posted June 19, 2006 Also folks, remember that speaking in generalities is OK, but asking for assistance with a specific cache is kinda like looking at the answer to the crossword puzzle ahead of time. It's icky. If you want assistance with a puzzle cache, why not just e-mail the owner? Link to comment
+Yellow ants Posted June 19, 2006 Share Posted June 19, 2006 Also folks, remember that speaking in generalities is OK, but asking for assistance with a specific cache is kinda like looking at the answer to the crossword puzzle ahead of time. It's icky. ... which is why, I guess, that the OP substituted the original distances from the points with some rather large values in miles. To keep it in generalities. If you want assistance with a puzzle cache, why not just e-mail the owner? What's the difference from asking help from the owner, and asking help from others who hasn't already solved the puzzle? If asking us for help is bad, is it also bad to team up with other cachers and solve mystery caches? Link to comment
+Markwell Posted June 20, 2006 Share Posted June 20, 2006 It's a matter of intent. If I come up with a pretty hard puzzle, I'd like people to figure it out and learn something rather than just go and ask other people. ...To keep it in generalities This is negated by this: It is GCMPDG That's asking for help in solving a specific cache. Link to comment
+Yellow ants Posted June 20, 2006 Share Posted June 20, 2006 (edited) If I come up with a pretty hard puzzle, I'd like people to figure it out and learn something rather than just go and ask other people. Some of us like the increased feeling of community that comes from solving puzzles together. But I can see that friendly cooperation between cachers is unwelcome in your world view. ...To keep it in generalities This is negated by this: It is GCMPDG That's asking for help in solving a specific cache. Did you actually read the thread before coming in here all aggro? That was naturekid's response to my question in post #2 (out of curiosity- I'd like to have a go at it too) what cache he was trying to solve ... Oh well, I guess I'll scoot over to my friendly national forum now. Edited June 20, 2006 by Yellow ants Link to comment
+Yellow ants Posted June 20, 2006 Share Posted June 20, 2006 (edited) [ posts merged ] Edited June 20, 2006 by Yellow ants Link to comment
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