Multiple Chart Windows

[yachtvalhalla]

Originally Posted by boat_alexandra

I would like to begin discussion of how to actually implement this, because it is not clear. Especially the user interface and usefulness of partial transparency. I do think a new chart format should be supported, probably mbtiles for this purpose.

I have found partial transparency to be quite useful. With the GE2KAP program and Google Earth I routinely create imagery charts that have partial transparency (as when cm93 information is desired .. such as depth information) and also have been corrected in location. The image shows a harbor where both are visible. (Note the location change at the bottom of the imagery chart near the red arrow).

Terry

[Capt.Don]

What about a chart overview in the dashboard plugin?
Don

[GordMay]

Greetings and welcome aboard the CF, Flying Gybe.

[petter5]

Under Linux this is simple by just opening two instances.

It would be even more useful if you was able to run two instances in full screen (F11) where you can split the view vertically on the same display and maybe just use the mouse to adjust the width used by each instance by drag left or right a common vertical size adjust line/splitter.

Today you will have to adjust the horizontal size on each instance instead of a common slider for both instances.

Originally Posted by .Paul.

The OpenCPN "portable" mode is the key to having multiple instances of OpenCPN running on a single computer.

The instructions are in the OpenCPN Users Manual:

https://opencpn.org/wiki/dokuwiki/do...rtable_opencpn

Paul

[rgleason]

Quote:
Originally Posted by Flying Gybe
It would be wonderful if OpenCPN had a zoom tool for quickly zooming multiple levels. This could either be a picklist of zoom levels or a sliding zoom tool similar to GoogleEarth’s and ESRI’s ArcGIS sliding zoom tool.

Sean wrote:

I wrote a simple chartscale plugin which doesn't seem to have much attention, but probably does what you are asking

See https://opencpn.org/wiki/dokuwiki/do...s:chartscale&s[]=chartscale

If you have linux Sean's repository
https://github.com/seandepagnier/chartscale_pi

[SecondBase]

Originally Posted by Flying Gybe

Is there a convenient way to open and simultaneously navigate with more then one chart window at different scales and/or zoom levels with OpenCPN? This is a very useful feature and helps avoid bumping into stuff that will not be displayed at some chart zoom levels (ah la Vesta Wind and numerous other incidences), while also monitoring progress along a route with a small scale chart window.

Attached is an example screen grab file using MaxSea for a passage a number of years ago. Am I overlooking a way to do this with OpenCPN?

Thanks!

To endorse your requirement here - I do this same parallel function but in a different way. I run a zoomed in Garmin and a zoomed out iPad Navionics. I should probably migrate Navionics to OpenCPN.