GPS data format conversion [easy to understand]

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There are three types of longitude and latitude formats ： degree 、 degree – branch 、 degree – branch – second

1.）ddd.ddddd °【 degree . degree Format 】 Decimal fraction of （5 position ）

2.）ddd°mm.mmm’ 【 Degrees . branch Format 】 Decimal fraction of （3 position ） NMEA data The format is $GPGGA when , obtain gps The data is （ Degrees . branch ） Format

3.) ddd°mm’ss’’ 【 degree . branch . second Format 】

Google The third format is used degree . branch ’ second ’’

Conversion of degree to minute ：

Convert degree unit data to degree unit data

degree = degree + branch /60

for example ： longitude = 116°20.12’ latitude = 39°12.34’

longitude = 116 + 20.12 / 60 = 116.33533°

latitude = 39 + 12.34 / 60 = 39.20567°

Degree minute second conversion ：

Convert degree, minute and second unit data to degree unit data

degree = degree + branch /60 + second /60/60

for example ： longitude = 116°20’43” latitude = 39°12’37”

longitude = 116 + 20 / 60 + 43/60/60 = 116.34528°

latitude = 39 + 12 / 60 + 37/60/60 = 39.21028°

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