Hi Paul, and thanks for the response.
I'm a bit confused with some of your response.
You said: "...OpenCPN 4.0.0 release version does quilt all of NOAA's vector
charts". Then go on to say "These cover almost all of the US waters that are charted in raster
Please correct me if I'm wrong, but I thought that all NOAA charts were rasters.
The chart images
that my instance of OpenCPN is presenting, is definitely a raster image. Zoom into far and the image starts to pixilate.
The image that you supplied looks to be a vector chart. And yes, it looks like your vector charts are quilted quite nicely.
My instance of OpenCPN has no problem lacing/quilting any of the other NOAA charts. Only chart #11553 is having problems. At least for this one chart area. I haven't tried any other locations.
The user manual even states... "Skewed charts don't quilt, unless the skew is less than 5°".
Chart Quilting | Official OpenCPN Homepage
Sooo, I guess my question to you would be....
Do you agree with the manual that raster images
skewed more than 5 degrees will not quilt with other raster images?
If no, what am I doing wrong?