Re: [Qgis-user] Help in Field Calculator
Hi, Am 04.04.2018 um 14:27 schrieb Daniel Alejandro Montecinos Rubilar: > What I try to do is then updated columns in a data layer with > another layer. For example , I have two layers A = Poligono , B = > Points . The layer B contains real values. Then would do two things. > 1. Count how many points of the layers B are within the layer A. 2. > From the points of the layer B that are within the polygon layer A, I > need the sum of their values and paste this sum in a column of > created layer "Count points in polygon" (Vector->analysis tools) and "Join attributes by location" (Processing toolbox->vector general tools) are the operations you seem to be looking for. ___ 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] Help in Field Calculator
I can’t find a solution to my problem, could someone help me? De: Andreas Neumann <a.neum...@carto.net> Fecha: miércoles, 4 de abril de 2018, 10:52 Para: Daniel Alejandro Montecinos Rubilar <daniel.montecino...@gmail.com> CC: <qgis-user@lists.osgeo.org> Asunto: Re: [Qgis-user] Help in Field Calculator Hi Daniel, One alternative way to do this, without field calculator, is to use the "Processing Toolbox" (see menu processing) and use the "Count opints in polygon (weighted)" algorithm. This should do what you want, but the downside to this approach is that you end up with a new layer. If you want to use the field calculator (without creating a new layer) you will have to look at aggregates and spatial relationship functions. I am not 100% sure if this would work - I currently don't have the time to test it - but might be worth a try. Good luck! Andreas On 2018-04-04 14:27, Daniel Alejandro Montecinos Rubilar wrote: Hi. I have a question urgent. What I try to do is then updated columns in a data layer with another layer. For example , I have two layers A = Poligono , B = Points . The layer B contains real values. Then would do two things. 1. Count how many points of the layers B are within the layer A. 2. From the points of the layer B that are within the polygon layer A, I need the sum of their values and paste this sum in a column of created layer A. I tried to make the crossing with the "field calculator" function, using the functions: "geomwithim", "geomintersects" and "intersecting_geom_sum", but without results. I hope I have been able to explain. Greetings and thanks for your support. ___ 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] Help in Field Calculator
Hi Daniel, One alternative way to do this, without field calculator, is to use the "Processing Toolbox" (see menu processing) and use the "Count opints in polygon (weighted)" algorithm. This should do what you want, but the downside to this approach is that you end up with a new layer. If you want to use the field calculator (without creating a new layer) you will have to look at aggregates and spatial relationship functions. I am not 100% sure if this would work - I currently don't have the time to test it - but might be worth a try. Good luck! Andreas On 2018-04-04 14:27, Daniel Alejandro Montecinos Rubilar wrote: > Hi. I have a question urgent. What I try to do is then updated columns in a > data layer with another layer. For example , I have two layers A = Poligono , > B = Points . The layer B contains real values. Then would do two things. 1. > Count how many points of the layers B are within the layer A. 2. From the > points of the layer B that are within the polygon layer A, I need the sum of > their values and paste this sum in a column of created layer A. I tried to > make the crossing with the "field calculator" function, using the functions: > "geomwithim", "geomintersects" and "intersecting_geom_sum", but without > results. > > I hope I have been able to explain. > > Greetings and thanks for your support. > > ___ > 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
[Qgis-user] Help in Field Calculator
Hi. I have a question urgent. What I try to do is then updated columns in a data layer with another layer. For example , I have two layers A = Poligono , B = Points . The layer B contains real values. Then would do two things. 1. Count how many points of the layers B are within the layer A. 2. From the points of the layer B that are within the polygon layer A, I need the sum of their values and paste this sum in a column of created layer A. I tried to make the crossing with the "field calculator" function, using the functions: "geomwithim", "geomintersects" and "intersecting_geom_sum", but without results. I hope I have been able to explain. Greetings and thanks for your support. ___ 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
