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GPS, NMEA, WGS-84, GIS and VB.NET By Thomas Tingsted Mathiesen (tma@tma.dk) I made this page because I have almost surfed my self to death trying to piece all the different information together - It's out there, but somewhat scattered all over. My goal is to develop a VB.NET class library where all functionality conserning positioning, Datum conversion, Grid transformation and direct serial interface to an external USB/Serial GPS reciever. My Linked-In profile My company - Gaudio ApS My FaceBook profile |
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Last changes made: 16 JUL 2008 |
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NMEA(WGS-84) | 5601.0318,N 01211.3503,E |
Decimal format | 56.01755 12.19302 |
Name | Link |
National Geophysical Data Center(NGDC) | http://www.ngdc.noaa.gov/seg/geomag/jsp/struts/calcDeclination |
GLOSSARY OF GPS TERMINOLOGY | http://www.rbf.com/cgcc/glossary.htm |
Wikipedia's story on Magnetic declination | http://en.wikipedia.org/wiki/Magnetic_variation |
NMEA Sentence information | http://www.tma.dk/gps/nmeastrings.htm |
Deviation (Graphs) | http://swepos.lmv.lm.se/english/sa.htm |
Google groups on the subject | http://groups.google.dk/group/Google-Maps-API/browse_thread/thread/7b36c0f8b6a0d592/ab5580ea1b6adaaf?lnk=st&q=convert+NMEA+to+WGS-84+decimal&rnum=2&hl=da#ab5580ea1b6adaaf |
Jim Mischel's fantastic article on 'Computing Track Information in GPS' | http://www.informit.com/guides/content.asp?g=dotnet&seqNum=513&rl=1 |