Andy,That might just work, I will give it a go...Will let you know how I get on, at the moment, I have the style saved to the database, it will be interesting to see how that all works!!
Regards,
Richard. On 23/07/2015 12:36, Andrew Harfoot wrote:
Just a thought Richard, but if you don't need to edit the data, could you not use a join to add a (precalculated) rotation field on the fly, either on the DB side, or in QGIS?Cheers, Andy On 23/07/2015 09:10, Richard McDonnell wrote:Hi,I am in need of some guidance, I am trying to create an "active hatch/Fill" as part of a style im working on. What I want is for a hatch to rotate depending on the orientation of a Polygon.For example, here is the same entity rotated, with the hatch rotating.The issue is I am working on a database, onto which I cant add any data (additional columns) to the tables, I would like to do this from within the styling. You can use an expression to denote the angle, so I was hoping to do it that way. I was looking to utilize the geometry of a bounding box, and calculate the angle of the diagonal, using something like180*atan((ymax - ymin)/(xmax - xmin))/$pi + 90But I am not having any luck....If there is no way at present to do this, Might I put it forward as a possible new feature?Regards, Richard. OPW - Ag féachaint don am atá le teacht - Ag caomhnú ón am atá thart OPW - Looking to the future - Caring for the past <http://www.opw.ie/> Email Disclaimer: http://www.opw.ie/en/disclaimer/ _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user-- Andy Harfoot GeoData Institute University of Southampton Southampton SO17 1BJ Tel: +44 (0)23 8059 2719 Fax: +44 (0)23 8059 2849 www.geodata.soton.ac.uk _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
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