[Qgis-user] Problems to create new columns through two tables

2018-02-20 Thread Daniel Alejandro Montecinos Rubilar
Hello I want to create a new column in QGIS from a cross-information of two tables. The first table are communes of my country and the second are some electrical faults plotted as points. Then I want to create a new column in table 1, by means of the following logic: NewColumn = Sum (column_va

Re: [Qgis-user] True North

2018-04-03 Thread Daniel Alejandro Montecinos Rubilar
Good Morning, I have a query, I have use Mapinfo for several years and I was discover QGIS program and I want change me, but I’am searching one similar function but I dont found. This function, in Mapinfo, his name is “Update Column”. Below I leave an image I appreciate your help, it

Re: [Qgis-user] True North

2018-04-04 Thread Daniel Alejandro Montecinos Rubilar
Dear, what you refered?  The question is not understood or there is no solution? De: Springfield Harrison Organización: Stellar GPS & Mapping Fecha: martes, 3 de abril de 2018, 17:53 Para: Daniel Alejandro Montecinos Rubilar CC: Asunto: Re: [Qgis-user] True North Hello Daniel, You

Re: [Qgis-user] True North

2018-04-04 Thread Daniel Alejandro Montecinos Rubilar
] True North Dear Daniel, Harrison just meant that is not nice to "hijack" an existing topic thread. If you have a different issue, you should start a new e-mail thread just for that new issue. Andreas On 04.04.2018 13:38, Daniel Alejandro Montecinos Rubilar wrote: Dear

[Qgis-user] Help in Field Calculator

2018-04-04 Thread Daniel Alejandro Montecinos Rubilar
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. F

Re: [Qgis-user] Help in Field Calculator

2018-04-04 Thread Daniel Alejandro Montecinos Rubilar
I can’t find a solution to my problem, could someone help me? De: Andreas Neumann Fecha: miércoles, 4 de abril de 2018, 10:52 Para: Daniel Alejandro Montecinos Rubilar CC: Asunto: Re: [Qgis-user] Help in Field Calculator Hi Daniel, One alternative way to do this, without field

[Qgis-user] I could't Fields update in QGIS

2018-04-30 Thread Daniel Alejandro Montecinos Rubilar
Hi. I have a question urgent and that during months I have could't response it. What I try to do is then updated columns in a data layer with another layer. I have two layers, A = Poligono , B = Points . The layer B contains real values and there are several this points over the polygones A. I n

[Qgis-user] Symmetric Difference for a Single Layer

2018-07-04 Thread Daniel Alejandro Montecinos Rubilar
Hello, I have a question, how can I apply the geoprocessing tools "symmetric difference ...", but for a single layer and not two as it come in by default. I need to apply the function to several polygon inside the one same layer. Or if there is another function that make  this operation.