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Old 29-01-2015, 20:08   #1
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S57 Charts with different scaling zoom problem

Hi, I have some S57 charts with different scaling for example one of them is 1:30000, one is 1:80000. When I zoom out to certain level, the one with maximum scaling 1:30000 disappear, only 1:80000 still remains there. Is there any way to set it up in the Options menu or I should change some the OpenCPN code?

By the way, is there a manual that describes all the methods and structure of the OpenCPN code?

Thanks.
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Old 29-01-2015, 20:49   #2
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Re: S57 Charts with different scaling zoom problem

Quote:
Originally Posted by xytxyt View Post
Hi, I have some S57 charts with different scaling for example one of them is 1:30000, one is 1:80000. When I zoom out to certain level, the one with maximum scaling 1:30000 disappear, only 1:80000 still remains there. Is there any way to set it up in the Options menu or I should change some the OpenCPN code?
You probably want to make sure your real physical display size is set correctly and play with the Chart Scale / Zoom Weighting factor in Toolbox -> Display -> Advanced to suit your liking
Remember that S57 charts define what is shown at which scale and their producers probably had a reason to do it the way they did.
Quote:
By the way, is there a manual that describes all the methods and structure of the OpenCPN code?
No, you have to read the code.

Pavel
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