On 31/08/12 11:27, Anna Kratochvílová wrote:
Hi,

On Fri, Aug 31, 2012 at 11:07 AM, Paulo van Breugel
<p.vanbreu...@gmail.com>  wrote:
Hi Anna

This looks like a very useful tool, and it works perfectly (running grass 7
on Ubuntu 12.04), thanks!

If I may make a feature request. Would it be very difficult to implement an
option where rather then splitting the area between the two maps, the same
area is shown for both maps (i.e., mirrored maps). In that option, moving
one map would move the other map too. This makes it easier to see changes
between two maps in detail. In case my explanation isn't clear, a nice
example is the MIrrorMap plug-in for QGIS.

Seems clear to me. I added it to map swipe wiki page, you can edit it.
I remember someone on mailing list was asking about similar
functionality - synchronize display region extent of more Map Displays
- could it be what you mean?

http://trac.osgeo.org/grass/ticket/1669

I'm not sure that this should be part of the swipe tool. I'd rather see this as a general feature of Map Displays, i.e. the option to linked any number of Map Displays so that when you pan / zoom in one the other(s) adjust automagically. Then again, I'm only the one asking, not doing ... ;-)

Moritz
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