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Software to graph NMEA Windspeed
I have Visual Basic subroutines for sorting out NEMA messages into the
relevant data (wind, position, depth, etc.) and logging it which I'd be happy to send, no charge, no guarantees. (code, not executables -- you'd need VB to compile and run it. As for graphs, I'd suggest pulling the log up into Excel -- you can then easily produce any graph you want. Jim Woodward www.mvFintry.com J wrote in message . .. This is for a base station wind instrument which I'm putting together for a sailing club. They have the NMEA instrument and have asked that I can put nice pretty graphs of wind speed and direction up on their website. I'm thinking of just writing some code myself to take the input and create a text file with it and have that FTP'd to their webspace and run CGI scripts to graph it. This might make it a bit clearer! I hope On Sat, 04 Oct 2003 16:59:10 GMT, "Glen Wiley Wilson" wrote: I could add a graph of that type to my cpRepeater program in about 20 minutes, since I already have graphs like course, speed, and depth. But cpRepeater would probably be overkill for your needs and isn't primarily a graphing tool; the graphs aren't what I'd call presentation quality. I'll likely add everything you asked for except jpg save to the next free maintenance release, though. It seems like an attractive feature. I'll have to think about the save feature... Do you want to do this occasionally, or all the time? It makes a difference. If you just want to do it occasionally, you could live with a more manual procedure. I'm pretty sure I've seen at least one freeware NMEA to disk logger. Given the data, you could graph it with a spreadsheet package, which would also have the avility to save the graph. For instance, cpRepeater does log the data you want to disk (at intervals you set) as a file you could easily import into a spreadsheet and graph to your heart's content. Then, you could save the graph or even capture it with a freeware screen capture utility like AnalogX Capture. That said, what you're looking for should be pretty simple to build; I'll be surprised if you don't get a pointer to something that will work. If not, I might knock something out when I have time. Is this a home use thing or is it for the boat? Glen "Wiley" Wilson usenet1 SPAMNIX at worldwidewiley dot com To reply, lose the capitals and do the obvious. Take a look at cpRepeater, an NMEA data integrator, repeater, and logger at http://www.worldwidewiley.com/ |
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