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General Discussion

Building a triangulation web-app


SAR: Search and Rescue

Declination: Variance between true north and magnetic north, example where I am my declination is -4degrees Azimuth: is the angle in degrees an object is from another (you) while facing north.

Reverse Azimuth/Back Azimuth: Based on 360 degrees it’s the opposite end of an azimuth. If an object is 0 degrees from you, you are 180 degrees from it. If it is 90 degrees from you, you are 270 degrees from it.

I Want to make a little web app that the user inputs their declination, and then and put in objects azimuths from them and in turn it does the math to give them their reverse azimuth from that object. Once they add in two or more object it triangulate their position on a map.

We are teaching mapping for an upcoming SAR class and triangulation been a tough one for some students to grasp. It’s tough for me to remember all of the steps sometimes even, it is one of those things when you need it you are usually under pressure and when you’re under pressure you tend to hurry.

Basically it should be able to overlay any map image click to drop pins set declination, and azimuths and it steps you through how to triangulate.