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Old 21-05-2011, 15:52   #1
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Harmonic Files ...

Hi all!

Does anybody knows how to merge several different Harmonic files to one and then create the Harmonic.idx file?

Or can the .idx file be created from several different Harmonic files at once?

I read about the Tide2idx file in the Readme of WXTide32 but to be honest, I didn't understand much of it:
Quote:
Source files
~~~~~~~~~~~~
The file WXTidSrc##.7z has all the source code for the WXTide32 program. Three
files: Tide2idx.c, Tide2idx.ctl and tide2idx.bat form the station index builder
DOS console executable. For tide2idx.bat to work properly, the "subreg" path will
have to be changed to point to the Tide 2.4 subreg files.


Station indexing
~~~~~~~~~~~~~~~~
The Tide2IDX program generates a sortable station index from one or more
harmonic constituent and subordinate station files. I never was very good with
geography and as I HAVE NO INTEREST IN POLITICS, political boundary
assignments may seem arbitrary to some extent. So if you don't like the
region/country/state that your station appears in, try changing the
Tide2IDX.ctl file and make a new index. To generate a new index with
subordinate stations, you must download and unzip the Tide24 program mentioned
earlier. The files of interest are in the subdirectory "substa" and are all
called "subreg.xx" where "xx" is a region number. The "makeidx.bat" file
builds an index including all the "substa" files. You will have to change the
search path in makeidx.bat to point to those files for it to work properly.
The reason for asking is that there are several different Harmonic files out there (the one packaged with OpenCPN, the one from the french user (sorry, don't know his name), and several others available on the Web). But unfortunately they all cover different regions, some include also currents others don't - so I want them all in one Harmonic file (because there is no easy way to simply switch between different Harmonic files).

Thanks
Gunther
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Old 22-05-2011, 05:09   #2
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Re: Harmonic Files ...

Hello Netsurfer,

In the package OpenCPN, for the US, the data are those of NOAA. Thus, their value is guaranteed. For other areas, we do not know.

In the files produced by other sailor (as French file) or have unknown sources, data quality is not guaranteed even if these files are made seriously. For example, the French file, the data differ slightly from the official data when compared with data from the official French (SHOM)

Make a single package at all, without distinction between the quality of the data might be problematic.

There should be many files that areas like the language file. The user may choose to view a particular area but it would be possible to display a message indicating the source of data and qualities.

Dave thinks for the amount of work it would take?

Best regards

Gilletarom.
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Old 22-05-2011, 08:19   #3
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Re: Harmonic Files ...

Hi Gilletarom!

thanks for your reply. But my question was not related to OpenCPN. I just wanted to know how I could "merge" several different Harmonic files into one and how to create the Harmonic.idx file.

I also know about the problem of data accuracy ... .
So one should always cross-/ double-check the given data.

Thanks

Gunther
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Old 22-05-2011, 08:41   #4
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Re: Harmonic Files ...

Quote:
Originally Posted by Netsurfer View Post
Hi Gilletarom!

thanks for your reply. But my question was not related to OpenCPN. I just wanted to know how I could "merge" several different Harmonic files into one and how to create the Harmonic.idx file.

I also know about the problem of data accuracy ... .
So one should always cross-/ double-check the given data.

Thanks

Gunther
they(Harmonic idx) can be edited in a text editor. but the stations must refer to primary stations in the single HARMONIC file.
I haven't tried adding to HARMONIC but if you have Primaries to add on,why not just try it?(with a Hex editor?)
and create an entry to harmonic. idx to see if it works in the first instance?
I see per OP(and edited this post) that you want to generate the harmonic.idx so apologies if no help.

dontpost 'em if you break copyrights!
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Old 22-05-2011, 11:41   #5
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Re: Harmonic Files ...

...but I'm just at a simple level just as in...
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it's "good" that OpenCPN's are at a level I can comprehend,at least.There are so many db formats,but the ones hereabouts all seem to go back to the same (open)sources....?
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