I had the same problem.
I imported a .sld file from geoserver to qgis and it seems some (or
many) things are different.
The worst of all is the algorithm applied for rototranslation.
Apparently, the offset x, y and the rotation (or data defined rotation)
fields, don't work together in a rototranslation function. Searching
until something like the 10th page on google and merging every little
piece in as many forums, I found out if you have to apply a
rototranslation data-defined formula, you must set up some things manually.
First of all, you have to set up the data-defined rotation field,
remembering that, for some reasons, the angle is shifted by 90 degrees.
Then you have to place the rotated label in a coordinate computed by
the real rototranslation formula (rotation and translation combined).
To do that, I find this formula to output the best results, in the
Offset X, Y field:
concat (
-A * sin ((90 - "field") * pi () / 180) -B * cos ((90 - "field") * pi ()
/ 180),
',',
A * cos ((90 - "field") * pi () / 180) -B * sin ((90 - "field") * pi ()
/ 180)
)
where A and B are 2 constants for offset and "field" is your
data-defined field
Sorry if something is unclear, this method is a quite unfriendly way to
accomplish this need
Marco
_______________________________________________
Qgis-user mailing list
[email protected]
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
