Re: [Qgis-user] Azimuth and orientation of 2 features
Hi all. I asked yesterday how to resolve this problem: "I need to calculate the orientation (North, East, South or North) of a feature (Polygon, a parcel) respect of another one (Line, a road).I calculated the azimuth of the two features using the centroids of each but the formulas I found don't really work, or I am doing something wrong (it's probably that :-) )." Thanks to Nicolas Cadieux I found this solution: degrees( azimuth( make_point( to_real( "Cen_X" ),to_real( "Cen_Y" ) ), make_point(to_real( "X-centr" ),to_real( "Y-centr" )) ) ) Where Cent_X, Cent_Y, X-centr and Y-centr are respectively the centroides of my road and my parcels. Regards. -- Alexandre Rodier Geógrafo Turismo sostenible Telf: +34 661 38 00 28http://www.entretierras.com+ info: https://www.linkedin.com/in/alexrodier/ -- ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Azimuth and orientation of 2 features
You can create a line using both centroid then use the azimuth function. https://gis.stackexchange.com/questions/264422/displaying-azimuth-of-line-in-qgis Nicolas Cadieux https://gitlab.com/njacadieux > Le 12 févr. 2023 à 12:57, Alexandre Rodier via QGIS-User > a écrit : > > > Dear list. > I have a question I am not able to resolve: > > I need to calculate the orientation (North, East, South or North) of a > feature (Polygon, a parcel) respect of another one (Line, a road). > I calculated the azimuth of the two features using the centroids of each but > the formulas I found don't really work, or I am doing something wrong (it's > probably that :-) ). > I am sure that's a simple problem but I am quite blocked. > > Thanks in advance for your help. > Alex > > ___ > QGIS-User mailing list > QGIS-User@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Azimuth and orientation of 2 features
Hi Alex.You could use the coordinate of the centrists to determine which polygon is east or north. For example, if your coordinate system is utm. the centroid with the highe Easton will he the most easterly, the one with the smallest northing will be the most southerly.Kirk Schmidt Sent from my Galaxy Original message From: Alexandre Rodier via QGIS-User Date: 2023-02-12 1:57 p.m. (GMT-04:00) To: qgis-user@lists.osgeo.org Subject: [Qgis-user] Azimuth and orientation of 2 features Dear list.I have a question I am not able to resolve:I need to calculate the orientation (North, East, South or North) of a feature (Polygon, a parcel) respect of another one (Line, a road).I calculated the azimuth of the two features using the centroids of each but the formulas I found don't really work, or I am doing something wrong (it's probably that :-) ).I am sure that's a simple problem but I am quite blocked.Thanks in advance for your help.Alex___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Azimuth and orientation of 2 features
Dear list.I have a question I am not able to resolve: I need to calculate the orientation (North, East, South or North) of a feature (Polygon, a parcel) respect of another one (Line, a road).I calculated the azimuth of the two features using the centroids of each but the formulas I found don't really work, or I am doing something wrong (it's probably that :-) ).I am sure that's a simple problem but I am quite blocked. Thanks in advance for your help.Alex___ QGIS-User mailing list QGIS-User@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
