Data storage on SD card - file organisation, library search.

hello.

i want use sd card storing way point in project of robot gps navigation system.

file format (single string):

x<space> a.aaaaaa <space> b.bbbbbb

where:
x - way point index 1 nn
a.aaaaaa - latitude in decimal format
b.bbbbbb - longtitude in decimal format

who ever solved similar problem?

any underwater stones?
may exist library working structured files?

thanks.
sorry bad english.

i'm not sure why want "structured files".

a simple solution might store data fixed length strings , retrieve nth string skipping appropriate number of bytes.

...r

Arduino Forum > Using Arduino > Project Guidance > Data storage on SD card - file organisation, library search.

arduino