dunedin
Well-Known Member
i think they are raster charts, in which case do they cover the same level of detail as the UKHO ones in the more remote parts of the UK?Imray Navigator suits my needs nicely
i think they are raster charts, in which case do they cover the same level of detail as the UKHO ones in the more remote parts of the UK?Imray Navigator suits my needs nicely
I think you need to ask a slightly more specific question. Unless he has a copy of both and did a full audit of them how could he possibly know?i think they are raster charts, in which case do they cover the same level of detail as the UKHO ones in the more remote parts of the UK?
I disagree. To create a simple web page/site is really easy, just needs a bit of thought and discipline. They have looked at it from the business point of view looking out not the customer's point of view looking in.I think that the website for VMH is bad for the same reason that the website of London Chartplotters is bad - the people running them are boaters first and foremost, providing a service that has a slim margin which leaves no money for modern whizzy website templates.
I agree that both are idiosyncratic but having dealt with them I can say that I've found them to be honest and the products remarkable for the tiny prices charged
But use the paid for and maintained version, not the free one. You can download charts for it at a reasonable cost.If its an Android tablet, OpenCPN is now available for it via the Google Play Store.
They cover all the areas covered by Imray charts at the same level of detail as Imray. And you get them free with our paper chart packs too.i think they are raster charts, in which case do they cover the same level of detail as the UKHO ones in the more remote parts of the UK?
One slight thing I've found the OpenCPN falls down where Navionics excels, is tidal (flow and height) data. Is there a OpenCPN plugin and data set which I can get for tidal data overlaid in OpenCPN to show the same functionality as Navionics?

Are these raster or vector charts? And do you know the source of the chart data?AVNAV seems pretty good to me, for the cheap price of free.
O charts have the uk for 20 quid and you can use that with open cpn too!
Are these raster or vector charts? And do you know the source of the chart data?
Clearly the accuracy and completeness of the chart data is crucial.
Are these raster or vector charts? And do you know the source of the chart data?
Clearly the accuracy and completeness of the chart data is crucial.
Amazed that somebody can source current UKHO vector data sufficiently cheaply to sell vector charts at that price. Sounds a great dealYes they are c63 charts seem to draw quickly and since they are derived from mandatory carriage charts I have no doubts on the accuracy
Yes it does.Does anyone know if the paid opencpn for andoid supports mbtiles charts?
I'm afraid that many posts on here have commented on the accuracy (or lack of it!) of Navionics charts! If you want the highest accuracy, you need a system that accepts charts supplied by Hydrographic Agencies; anything else is a derived product and has the potential for introducing error. I'm a (retired) map-maker who has been involved in checking Admiralty charts. And I won't use crowd-sourced chart data; there are too many ways it can go wrong, many of which have been reported here.The big plus for me is that Navionics is simple to install and use. It doesn't require any IT skills. When I first used it on my tiny Samsung mobile it cost £12 as a one off payment and free updates which has now morphed into about £30 pa which is not so good but still reasonable. Some of the other options have rather quirky presentation and no guarantee of accuracy (which must be the prime consideration).