Release 1.6 is out

It’s the same old story. What was supposed to be a small set of bug fixes to previous release, grew into a separate release of its own.

Version 1.6 turned out to be mostly about raster charts.

– First, BSB v4 support is now available on all platforms (Windows, Mac and Linux) for both existing and new BSB v4 users. I would like to thank Canadian Hydrographic Service for their help and support in this matter – they’ve been great!

– Raster chart rendering has been sped up significantly, to the point where it will often be as fast as vector, if not more.

– Raster charts night colors have been customized for best visibility using custom colorization method. Thanks go to Pascal for pointing the issue out.

– Through the magic of re-projection, PolarView now supports raster charts in virtually any projection, including Polyconic and Transverse Mercator. This should provide appropriate coverage for Great Lakes sailors.

– Tide information is provided in tide station’s own time zone. Tide display now has live user-controlled slider to query data. Thanks to Rick for keeping my attention on the tide subsystem!

Documentation on using BSBv4 charts should be available on support site shortly.

Have fun!

7 Responses to Release 1.6 is out

  1. kpvanderwood@telus.net says:

    Great news on the BSB4 chart support for us Canadians – many thanks!
    Paul

  2. Jim Hebert says:

    Polar View NS V1.6 is very welcomed by Great Lakes boaters, as most of our raster charts were previously not viewable. This is a significant enhancement!

  3. Haris says:

    Thank you! And it took just a couple of weeks to add reprojection to the list of functionalities!

    • polarnavy says:

      It was actually in the works for a lot longer than that. But it is also a feature “whose time has come” and I could not keep it in development any longer. It’s not ideal but it works quite well, IMHO – so it’s in.

      Let me know how it works out for you. You may need to re-add the charts in order to convert them.

      • Haris says:

        It took A LOT longer for the program to read and reproject the charts but I did not have to download them over or anything like that. So far works fine.

        There is one particular spot that is very annoying. It is in Calumet Harbor on the south of Chicago and on the border with Indiana. A blank area from one map overlaps an area of detail on the neighboring map. I wish the overlay was reversed in terms of which map goes on top but otherwise seems to work very well.

    • polarnavy says:

      Longer compared to the usual load?

      If so – that’s normal. Reprojection is a very math and data-intensive process. It’s pretty well optimized, but still takes anywhere from 30 seconds to a minute per chart on average hardware.

      You can control individual chart visibility by turning them on and off under Chart Information dialog->Charts tab.

      Raster chart overlap is primarily a source data issue. NOAA can easily solve the issue of chart stacking by better managing chart scale assignments and cut-out polygons for raster charts. They do a good job with vector charts, but quilting of raster charts seems to be almost an after-thought. While there are potential improvements to their handling (some on the TODO list), ultimately it’s up to chart issuer to create data in a way that makes most sense.

  4. Jason Taylor says:

    BSB4 support is a godsend. While the St Lawrence seaway charts are all available in S57, the Ottawa River and Rideau Canal system is BSB4 only. And just in time for spring, too!

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