QEP 75: Add concept of "true north" to composer north arrows about qgis-enhancement-proposals HOT 5 OPEN

@NathanW2 can you mark this as accepted/implemented?

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Looks good but I don't like those words "true north", shouldn't we speak about?:

• Projection North
• Geodetic North
• Magnetic North

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@sbrunner FYI this was implemented back in November ;)

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:-) and I'm wrong, https://en.wikipedia.org/wiki/True_north

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There was a feature added that rotated images/arrows already, but it would be useful to rotate maps themselves to true/grid north also.

For example, I have a map with a UTM grid that is a part of a topographic map series whose extents are defined using DMS. It is useful to rotate the map so that the extent bounds are as square with respect to the canvas as is possible.

I can get the convergence for a point on the map using the 'true north' alignment of an image and manually set the rotation for the map, but it's still a hack.

See the image attached. The map should be rotated in this case ~2.8 degrees so that the DMS grid appears roughly square with respect to the canvas.

As this is a map atlas/series, making this parameter data driven is highly useful.

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