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Search took 0.00 seconds. Search: Posts Made By: GPS-Marco

Forum: OpenCPN

24-12-2013, 04:00

Replies: 12

New Zealand Raster Charts now BSB

Views: 3,982

Posted By GPS-Marco

Re: New Zealand Raster Charts now BSB

Hello,

I attached a simple excel to evaluate the 3rd order poly error and the empirical formula error estimation on a mercator chart. The objective of the empirical formula is just to switch OCPN...

Forum: OpenCPN

20-12-2013, 05:14

Replies: 12

New Zealand Raster Charts now BSB

Views: 3,982

Posted By GPS-Marco

Re: New Zealand raster charts now BSB

I prepared a very simple empirical method to estimate the poly error:

Given of a chart:
MaxLat, MinLat , HeightInPixel

the third order poly error in pixels (RMS) is about:
1) MaxNorthing = ln...

Forum: OpenCPN

19-12-2013, 12:08

Replies: 12

New Zealand Raster Charts now BSB

Views: 3,982

Posted By GPS-Marco

Re: New Zealand raster charts now BSB

Hello,

if you are planning to go to the south pole :whistling: please note that the LINZ NZ charts representing the south seas and spanning many degrees in latitude (like the NZ14065) present a...

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