Re: [Tlf-devel] Tlf scoring for Stew Perry?

[Mike Waters]

Hello Ervin,

Thank you. Hamlib seems to be installed in Synaptic, but rotator.h is nowhere to be found and sothe code would not compile. I'm not sure what to do right now.

73, Mike
www.w0btu.com

On Mon, Dec 9, 2013 at 4:26 PM, Ervin Hegedüs <address@hidden> wrote:

Hello Mike,

may be you don't need to reverse any Pascal code :)

I hope, every Linux user had been installed Hamlib - and Hamlib
contains many good functions, eg. it can calculate the distance
(and bearing) between two locator.

Here is a sample code:

==%==
#include <stdio.h>
#include <hamlib/rotator.h>

int main(int argc, char ** argv) {
    double s1long, s1lat, s2long, s2lat;
    char s1qra[] = "EM37cg";
    char s2qra[] = "jn97om";
    double dist = 1000, az = 90;

    locator2longlat(&s1long, &s1lat, s1qra);
    locator2longlat(&s2long, &s2lat, s2qra);

    printf("W0BTU coords: lat: %f lon: %f\n", s1lat, s1long);
    printf("HA2OS coords: lat: %f lon: %f\n", s2lat, s2long);

    qrb(s1long, s1lat, s2long, s2lat, &dist, &az);

    printf("distance between W0BTU and HA2OS: %f km, dir: %f\n", dist, az);
    return 0;
}
==%==

You can compile that code with this command:

gcc -Wall qrasrc.c -lhamlib

and run:

$ ./a.out
W0BTU coords: lat: 37.270833 lon: -93.791667
HA2OS coords: lat: 47.520833 lon: 19.208333
distance between W0BTU and HA2OS: 8485.799136 km, dir: 40.000000

These values are the short path info's.


Please note, this is just an after-a-fast-explore snippet, there
isn't any error handling.


73,


Ervin
HA2OS

On Sun, Dec 08, 2013 at 08:24:55PM -0600, Mike Waters wrote:

> Thanks to Pat's help via e-mail, I was able to get tlf working for the ARRL
> 160. I have never used tlf before, and love it. I noticed that tlf's
> constant score update feature adds to the enjoyment of the contest as well
> as providing some incentive to keep going when a body gets tired. :-)
>
> I know that tlf can be used in the Stew Perry for logging, but will not
> display the score. I would really, REALLY like to see it display the
> running score for the Stew (at the end of this month), which is based on
> the distance between grid squares.
>
> I just did some searching and found some C source that I believe could be
> used for that here:
>
> http://dev.unclassified.de/en/source/locator-distance
> http://dev.unclassified.de/en/source/maidenheadlocator
>
> There are links on those pages that appear to lead to more useful code,
> including Pascal, which I used to program in years ago. I've done very
> little in C.
>
> I know nothing about the C source structure of tlf, and I was wondering if
> anyone could steer us in the right direction. I would appreciate any advice.
>
> 73, Mike
> www.w0btu.com

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