With babel, why is it not recommended to place title commands before \begin{document}? We are. This means that, for our 16 compass sectors, we actually need 17 values in our lookup table. For people not looking for a challenge, the easy solution is to find the possible output for which the distance is minimal from the input angle, using a lookup table angle <-> name. else if (157.5 <= d < 202.5) For example, a meteorologist might say, “The storm is going to blow in from the west.”. The sectors are like slices of pie, centered on the compass points. I would recommend posting your question on the Digilent Forum (link at the top of this page since it doesn’t look like I can provide a url link) where one of the Digilent engineers will be able to see and respond to your question in an environment much better suited to troubleshooting. I thought I’d share it here for those that could take advantage of it. To do the conversion, I use an indexed array as a lookup table instead of a Case instruction. If a decimal point is present, there will be digits on both sides (you don't have to handle .1 or 1.). For example, can you picture in your mind what direction 195 degrees is? I don´t know how to do it. It’s not limited to my situation, it should work on any weather page where this conversion would be handy. For questions or comments, please post in the comment section below or visit the Digilent Forum! Still don't feel like b is done being golfed. Click here for instructions on how to enable JavaScript in your browser. To do the conversion, I use an indexed array as a lookup table instead of a Case instruction. Note: Although this step isn’t necessary with most sensors, it won’t cause any problems if you include it in your programs. Note: Although this step isn’t necessary with most sensors, it won’t cause any problems if you include it in your programs. Currently you have JavaScript disabled. Challenges must have, Code Golf Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. Mariner, with 32 points, 16 + points such as northeast by north (NEbN) between north-northeast and northeast. We have worked around limitations before by making a table with just the Windvector. By the way, this does die for 355 degrees to 360 degrees. Valid compass entries are numeric degree designations from 0 degrees to 360 degrees (0 and 360 are the same direction, North.) This online calculator outputs compass point given direction angle in degrees. Doing so gives us 1 with a remainder (or modulus) of 45: In this example, the remainder of 45 degrees is what needs to be converted to a compass direction. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. In two previous  posts we discussed how to calibrate magnetometer data in order to get accurate measurements, as well as how to acquire data in the first place. Can you think of similar cases with evenly spaced data bins where you could use this method? Thanks for this, btw. Please be as specific as possible. Tip: If you would like to use eight sectors instead of 16, with a shorter lookup table, divide by 45 degrees instead of 22.5 degrees. Convert angle of compass point (point) and degrees (°) units in reverse from degrees into compass points. We're active on social media!Stay informed with our latest updates by following us on these platforms: Sales and support for Singapore are provided by Campbell Scientific Australia. As for how you're supposed to get the directions. The 32-point compass is... interesting, to say the least. Because north on a compass could be described as 0 degrees or 360 degrees, we have to use two data bins for it. Degrees are labeled with their corresponding Primary InterCardinal compass direction, following the convention of the CIMIS daily wind data items. x: A vector of directions in decimal degrees. …Avoid asking for help, clarification or responding to other answers (use comments instead). Value. Just add your measurements and data tables. Just make, @StevenLu it took me a while to figure out what you means, but this line, This answer shows no attempt at golfing and is therefore subject to deletion as not a serious contender for the challenge. Did I get it all? In terms of wind direction, it is both fortunate and unfortunate that data loggers don’t “think” like us humans do. x: A vector of directions in decimal degrees. It only takes a minute to sign up. if(heading >360) Tip: If you would like to use eight sectors instead of 16, with a shorter lookup table, divide by 45 degrees instead of 22.5 degrees. For a whole set of multiple units of angle on one page, try that Multiunit converter tool which has built in all angle unit-variations. Convert decimal degrees to Compass direction. Each direction is 11.25 (360 / 32) degrees farther than the previous. Top. For instance, answers to code-golf challenges should attempt to be as short as possible. A simple way to fill the array is to assign initial values. Let us know. This calculator allows you to enter direction angle, either in DMS (degrees, minutes, seconds) or in decimal degrees form, and outputs closest point of the compass for different compass roses. Your challenge is to take input in degrees, and output the full name of the compass direction it corresponds to, along with its abbreviation. Learning for Engineers, Students, and Hobbyists. Two ways to remove duplicates from a list. The table below shows the 17 values with the 16 different compass sectors: You can use an array in your data logger program as a lookup table. In contrast, a Case instruction is a better choice for applications where your data bins aren’t evenly spaced, such as determining temperature ranges that describe water as hot, warm, or cold. To make sense out of wind direction data that is in degrees, l. Fortunately, our data loggers scan our sensors, convert the measurements to electrical signals, and store the data in degrees, which are more precise than compass directions. N or S always go first, and W or E always are second. The first value and last value are both north. person_outlineTimurschedule 2017-06-28 19:59:40. The columns are: More about points of the compass can be found here, Everyone who receives the link will be able to view this calculation, Copyright © PlanetCalc Version: See Also. Those first 3 regexps can be replaced by y/NS/SN/; for 10 chars, +1 Nice but be careful : "All capitalization must be preserved, as in the test cases.". Do you feel lost when sifting through wind direction data that is listed in degrees? else if (67.5 <= d < 112.5) The sectors are like slices of pie, centered on the compass points. How many people voted early (absentee, by mail) in the 2016 US presidential election? Post by daj » Thu Feb … Pmod CMPS2 3-axis digital magnetometer/compass. I need to calculate a 30 minute average data from wind sensor e write the compass data from it in a table. A factor vector of compass directions. The deviation from general directions is about 22.5 degrees. If he chooses to update his answer to the above, I will delete this answer. The compass sector, being a string variable, can only be saved to a table with the Sample instruction. Anyway, the wind and wind gust directions are returned as angular degrees (0 being North, 90 East etc), so I’ve knocked up a script to turn that input into compass points (NE, SW etc). I have found so many answers going in the other direction but never one to convert to degrees. I expect that much can still be done to shorten b. Edit: Golfed off 44 bytes, courtesy of the majestic walrus. Answers abusing any of the standard loopholes are considered invalid.

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