Set up scripts to generate INT charts in various formats.

[ehrenfeu]

This issue evolved from OpenSeaMap/chart-designer#1:

Charts should be generated according to the "official" INT chart series by the International Hydrographic Organization in these formats:

• raster charts e.g. for OsmAnd / OruxMaps using the chart-designer tool
• Garmin charts
• generic raster charts using smrender

[Skippern]

I volunteer to add map sheets to the list as soon as a proper file format is in place

[rahra]

(Footnote: Smrender generates high-resolution PDFs for print-out which can be rastered as PNG or KAP as well ;)

[Dirk--]

Thanks to customer support at bsh.de, finaly found the catalogue:
http://www.iho.int/iho_pubs/standard/S-11/S-11.htm

[Dirk--]

Extended the wiki on this:
http://wiki.openseamap.org/wiki/OpenSeaMap-dev:De:Chart-Bundler#Blattschnitte

[ehrenfeu]

Wow, good job Dirk! Unfortunately they're not really machine-readable, so extracting the required information will still take some time...

Nevertheless, thanks a lot!

[Dirk--]

Started converting "Region 'D' NE Atlantic", indeed, some manual work is required ....

[ehrenfeu]

As I wrote on the other ticket, there is now the repository chart-sheet-properties for this purpose. Just fork it and use pull requests until we manage to set up the permissions correctly (I'm not allowed to adjust them, which is funny since I do have the permission to create it...).

[Dirk--]

I have no idea (in detail) how this github stuff works, here is what I have done so far:
http://wiki.openseamap.org/wiki/OpenSeaMap-dev:Catalogue_of_INT_Charts#REGION_.27D.27_NE_Atlantic

[Dirk--]

work in progress:

• concept: http://wiki.openseamap.org/wiki/OpenSeaMap-dev:Downloadable_Raster_Charts#Ideas
• in detail: http://wiki.openseamap.org/wiki/OpenSeaMap-dev_Diskussion:Downloadable_Raster_Charts#ideas

volunteers:

• pdf to csv conversion (Niko?)
• review .ol2 code (Gabi?)
• web frontend .php (Andreas aka Wellenvogel?)
• smrender integration (Bernhard?)
• scrpting perl/bash (Dirk, help welcome!)

[ehrenfeu]

• OL2 code: this is not 100% matching this ticket, as this is really about generating downloadable packages containing charts in various formats. Still, it is good to mention it as it would be most convenient to simply have an additional layer in the online map for selecting which chart to download! Probably this is not very difficult to integrate in the new OL3 map Gabi (@roeger) is creating.
• scripting: me! 😄

[Dirk--]

Basic scripting is done. Added sample formats at http://kap.grade.de/Europe/Germany/

• ORiverboatM-OSeaM_INT-1456.jpg 11-Feb-2015 14:26 570K
• ORiverboatM-OSeaM_INT-1456.kap 11-Feb-2015 14:26 1.2M
• ORiverboatM-OSeaM_INT-1456.mbtiles 11-Feb-2015 14:26 1.7M
• ORiverboatM-OSeaM_INT-1456.txt 11-Feb-2015 14:31 391

Is this considered useful?

My thoughts: Keeping tilenumber/ size low leads -in this case- to zoomlevel 13 or 14 (on ORiverboatM_INT-1460). Seamak layer does not display any labels on buoys (zoom 15 is minimum).
This makes these charts pretty unattractive!
Does anybody know about common maxsize of rastercharts?

[Dirk--]

did some testing:

• http://kap.grade.de/INT-CHART/

web-front-end now has some very basic functionality to download or generate charts:

• http://kap.grade.de/int-chart-ol2.html

since I am not a pro, code needs to be improved:

• http://wiki.openseamap.org/wiki/OpenSeaMap-dev_Diskussion:Downloadable_Raster_Charts#py_script
• http://wiki.openseamap.org/wiki/OpenSeaMap-dev_Diskussion:Downloadable_Raster_Charts#php_script