[thelist] ASP/GPS Question: converting from decimal degrees to degrees, minutes and seconds
Christian Anderson
christian at photokyo.com
Thu Jan 22 21:52:44 CST 2004
Hi Everyone,
Its been a while since Ive been on the list since Ive switched jobs and
havent been online in a while.
I have a question about converting GPS decimal degrees to degrees, minutes,
seconds in ASP. For example, what I have right now is something like this:
lat=+42.84779
lon=+140.71558
I want to convert this to something like lat=+42.x.x.x and lon=+140.x.x.x
I have someone that is heavy into python and came up with the following, but
since Im using asp I was wondering if anyone knew how to translate this
into asp? Or instead of translating, just making it work? ;)
Anyway here is the code, and I look forward to your replies. Thanks!
def degrees_to_dms_string(deg):
# Separate out the sign.
if deg < 0.0:
sign = '-'
deg = -deg
else:
sign = '+'
# Convert to an integer to avoid inconsistent rounding later.
# The least significant digit of the result corresponds to
# centiseconds so multiply the number accordingly. Note that
# int rounds towards zero.
csec = int(deg * 60.0 * 60.0 * 100.0 + 0.5)
# Split up into the four components. divmod calculates
# quotient and remainder simultaneously.
sec, csec = divmod(csec, 100)
min, sec = divmod(sec, 60)
deg, min = divmod(min, 60)
# Convert the four components and sign into a string. The
# % operator on strings works like C's sprintf function.
return '%s%d.%02d.%02d.%02d' % (sign, deg, min, sec, csec)
Christian Anderson
Niseko Hirafu, Hokkaido, Japan
http://www.photokyo.com
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