Originally Posted by Connemara
I have Seaclear, but how do I find NZ charts and calibrate them?
Planning a short charter
in Bay of Islands in March and was looking for charts (although the boat will have them, I'm told)
Caveat: I know the below techniques will result in charts that can be read by OpenCPN
, but I don't think they work in SeaClear.
To use them in SeaClear should be simpler:
SeaClear comes with MapCal. To use the NZ charts in SeaClear, use the link below to download your charts. Download KpGen, but your are only going to use the CHARTCAL.DIR file. You'll need to put the CHARTCAL.DIR in the same directory as the downloaded charts, then open them in MapCal to convert them to WCI so SeaClear can use them. As I type this, I think at that point, just come in the OpenCPN
forum in the Charts thread and we can walk you through it.
To use them in OpenCPN, see below.
For the chart images
For calibration, check out:
- OpenCPN sub-forum - the mc2bsbh thread
- OpenCPN sub-forum - the chart thread
- MapCal Utilities
The things to look for are mc2bsbh and KapGen.
Notes: All software
mentioned below is free. Some of it is only available for Windows, so that limits the process to Windows, for now.
For the easy way out, just start with KapGen. It contains the calibrations of something like half the NZ charts. You just select the chart you want, and it goes to the web and downloads it, converts the image and creates the chart. About as simple as you can get. You'll need to read the installation
instructions carefully as it requires you to load a few other packages for it to work. Like wget, mc2bsbh, libbsb, ImageMagick (I think that's all).
Once you get that loaded and working, all you additionally need to roll your own from any scanned image is MapCal, which comes with SeaClear.
The above links can also be found by drilling down in the link in my signature.
The developers of mc2bsbh and Kapgen are in the OpenCPN forum, so posting
questions there should get you all the help you need.