Markus,
I have seen the cairo.Matrix.rotate() documentation, and it is juste a
constructor of matrix, not very useful ;)
Also, if I quit the GIS context, I must produce at least a twice larger
image, and cut the border in oder to have a wholly image.
As I wrote in my former mail, I can choose an other software. I have seen
MapServer which is able to rotate my map view. Finally, I think MapServer is
better for my needs.
Jérôme
----- Original Message -----
From: "Markus Neteler" <[email protected]>
To: "Vincent Bain" <[email protected]>
Cc: "Jérôme - GeoRezo.net" <[email protected]>; "GRASS user list"
<[email protected]>
Sent: Wednesday, April 15, 2009 9:09 PM
Subject: Re: [GRASS-user] Rotate a map display
On Wed, Apr 15, 2009 at 7:28 PM, Vincent Bain <[email protected]> wrote:
Jérôme,
If you need to warp a map for a strict display purpose, IMHO it's not to
be performed from within grass given that this operation makes no sense
"geographically". Don't know what the context is, but if you just have
to rotate an image output of a map maybe you'd better look towards image
manipulation tools (e.g. imagemagick and the -rotate option, which can
easily be integrated in a script process).
Perhaps you can use the CAIRO driver.
In CAIRO, I see cairo.Matrix.rotate()
http://cairographics.org/documentation/cairomm/reference/classCairo_1_1Matrix.html
Just an untested idea, I am not familiar with the CAIRO driver in GRASS.
Markus
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