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I think it would be useful if you could split the marble view, showing two maps side-by-side. You could, for instance show the December and January temperatures side-by-side. The maps could also have different view modes, so you could have a flat projection on one side and a globe on the other.

There are three possible modes for this that I think would be worthwhile:

• linked - they always had the same center location and same zoom
• opposite - they always have the same zoom but the center locations are on exact opposite sides of the planet (useful for seeing both sides of the globe at once)
• independent - the two views can be moved totally independently of each other

TheBlackCat wrote:I think it would be useful if you could split the marble view, showing two maps side-by-side. You could, for instance show the December and January temperatures side-by-side. The maps could also have different view modes, so you could have a flat projection on one side and a globe on the other.

There are three possible modes for this that I think would be worthwhile:

• linked - they always had the same center location and same zoom
• opposite - they always have the same zoom but the center locations are on exact opposite sides of the planet (useful for seeing both sides of the globe at once)
• independent - the two views can be moved totally independently of each other

Would be trivial to implement (without settings saving). In fact if you toy around with our programming tutorial

http://techbase.kde.org/Projects/Marble/MarbleCPlusPlus

you'll be able to come up with such an application within 20 minutes.

But I don't see much of a demand from our target users to have this feature. It would also crowd up the UI and would make the code complex in a way that can't be justified by its merits.

Like with your elevation map idea it would be nice if someone created a scientific GIS application based on the Marble Widget that would have this kind of feature.

Torsten

I am not sure how it would clutter the UI. It would require a single drop-down menu in the "map view" section and/or a single additional sub-menu in the "view" menu.

As for use cases, I have already given a couple, the most important probably being able to see both sides of the planet at once. Another few would be:

• having the street map and bicycle map side-by-side
• having the street map or bicycle map and natural Earth side-by-side
• having natural Earth with and without places labeled at the same time
• having two views with different sets of place labelled so things are not too cluttered

I personally think it would be very useful.