Den sön 22 nov. 2020 kl 11:22 skrev Johnny Rosenberg <gurus.knugum@gmail.com
:
Yes, it's very, very easy (when you know how to do it…). Those coordinates
work exactly like time, so all you need to do is to format your input cells
properly (if you care about looks) and multiply your input cells with 24
(hours per day) in your output cells, because when working with time in
Calc (or Excel or any other spreadsheet application), the result is in
days, so 0,5 (or 0.5 if you use a period for the decimal symbol) means
12:00:00, 0,75 is 18:00:00 and so on.
Follow this for a demo:
1. Highlight A1 and right click and click ”Format cells…”.
2. Click the ”Numbers” tab.
3. In the ”Category” field, select Time and in the format Field select
the line that looks something like ”13:37:46”.
4. Now, in the ”Format code” field, replace the colons (or whatever
they are in your case; it's language dependent) with degrees and the other
characters inside double quotes, and also make sure your hours symbol is
inside [], which means it won't flip over to 0 for greater numbers than 23.
In my case (Swedish), it looks like: "N"[TT]"°"MM"'"SS""". If English
(USA): "N"[HH]"°"MM"'"SS""". There is a field right under the Language
selection that gives you an example of what the result would look like. In
my case it reads: N13°37'46".
5. Hit ”OK”.
6. Repeat steps 1 to 5, but highlight B1 instead of A1 and replace "N"
with "E" in the ”Format code” field.
7. In A2, type: =A1*24
8. In B2, type: =B1*24 (or just auto-fill from A2 or even copy and
paste A2 to B2)
9. Highlight A2:B2 and increase the number of decimals using the
”.00+” button or do it in the ”Format cells…” dialogue as before by
entering something like 0,0000000 in the ”Format code” field (or 0.0000000
if your decimal symbol is a period).
10. Now, in A1, type:
42:59:12.
Remember to treat the number as time rather than coordinates. Replace
”:” with whatever is the appropriate time separator for your language.
11. In B1, type:
0:5:12
I just read your question again and found that you had it the other way
around (east-west first and then north-south and using O instead of E), so
in your case then:
A1 format code: [HH]"°"MM"'"SS""""O"
B1 format code: [HH]"°"MM"'"SS""""N"
But this won't work, since Calc is not able to figure out all those double
quotes correctly, so my workaround is to use the ” double quote instead
(you can copy it from here, if you like, otherwise the UNICODE code is
U+201D. To match that I also use the corresponding ’ single quote, that is
U+2019, so in this case:
A1 format code: [HH]"°"MM"’"SS"”O"
B1 format code: [HH]"°"MM"’"SS"”N"
You can copy the whole thing from above, of course (and then replace the
letters to what's correct in your selected language).
A2=B1*24
B2=A1*24
The rest should be the same, I guess.
When following my own instructions, here's what my cells look like:
A1
N42°59'12"
B1
E00°05'12"
A2
42,9866666666667
B2
0,086666666666667
You could of course put the both together to a complete text string, but
then you can't easily use them for further calculations. For instance, in
A3, type (for a result with 8 decimals):
=ROUND(A1*24;8) & ", " & ROUND(B1*24;8)
=ROUND(B1*24;8) & ", " & ROUND(A1*24;8)
or, if you want to use the values in A2 and B2:
=ROUND(A2;8) & ", " & ROUND(B2;8)
And you can, of course, also add the degree symbol if you like:
=ROUND(A1*24;8) & "°, " & ROUND(B1*24;8) & "°"
Result (in my case):
42,98666667, 0,08666667
42,98666667°, 0,08666667° after adding the degree symbols.
So, as you see, no advanced formulas are needed at all.
Still correct. ☺
I hope there were not too many typos above.
Kind regards
Johnny Rosenberg
Den sön 22 nov. 2020 kl 06:14 skrev Gilles <codecomplete@free.fr>:
Hello,
I need to convert GPS coordinates from degrees+minutes+seconds (DMS) to
decimal, eg. 00°05'12"O 42°59'12"N → 42.98666667,-0.08666667
https://postimg.cc/QH0q5qmn <https://postimg.cc/QH0q5qmn>
Can Calc do this, or should I look elsewhere?
Thank you.
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