Re: [Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

On Fri, 30 Apr 2021 at 15:01, chris hermansen wrote: > > Krishna and list, > > On Thu, Apr 29, 2021 at 7:45 PM chris hermansen wrote: >> >> Krishna and list >> >> On Thu, Apr 29, 2021, 15:24 krishna Ayyala wrote: >>> >>> Chris, >>> Thanks for the reply. Yes, I did run k-means clustering for 4

Re: [Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

Krishna and list, On Thu, Apr 29, 2021 at 7:45 PM chris hermansen wrote: > Krishna and list > > On Thu, Apr 29, 2021, 15:24 krishna Ayyala > wrote: > >> Chris, >> Thanks for the reply. Yes, I did run k-means clustering for 4 clusters. >> It is creating a new layer called "clusters". This layer

[Qgis-user] Line Density Analysis Occurring on Gradient (No Pic)

Hi there, I need to run the Line Density Analysis; however, the results I receive are always on a gradient. All of my files are saved to the same directory, and all layers are georeferenced with the same co-ordinates. Would anyone be able to assist in rectifying this? Thanks, Eboni Westbury

Re: [Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

Krishna and list On Thu, Apr 29, 2021, 15:24 krishna Ayyala wrote: > Chris, > Thanks for the reply. Yes, I did run k-means clustering for 4 clusters. It > is creating a new layer called "clusters". This layer has a field called > Cluster_id, ranging from 1 to 4. But, this method is considering

Re: [Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

Nyall, Thanks for your reply. I have used the "dbscan clustering". In this, the default values for "Minimum Cluster Size" is 5 and Max distance between cluster points is 1 degrees. I ran with the same default values. I am getting output with the layer name "Clusters". This has generated a new

Re: [Qgis-user] Kriging using Qgis 3.18.2

Hi Jean:Export your excel file as a csv  file. Then you can import the file and define the x and y fields. Then open processing toolbox and search for kriging. Select the tool and file out ghd parameters.Kirk SchmidtSent from my Galaxy Original message From: jean Lukusa Date:

Re: [Qgis-user] Kriging using Qgis 3.18.2

Thanks a lot. Jean Lukusa B.Sc. Geology Trained on Jorc Code GIS Operator +243812156128 Le ven. 30 avr. 2021 à 00:12, Nicolas Cadieux a écrit : > Hi, > > Open the processing tool plugin and type Kriging. You will see 4 Kriging > algorithms. Then you can extract the contour line by looking

Re: [Qgis-user] Kriging using Qgis 3.18.2

Hi, Open the processing tool plugin and type Kriging. You will see 4 Kriging algorithms. Then you can extract the contour line by looking into the raster / extraction menu. Nicolas Cadieux https://gitlab.com/njacadieux > Le 29 avr. 2021 à 18:57, jean Lukusa a écrit : > >  > Hi all. > I

[Qgis-user] Kriging using Qgis 3.18.2

Hi all. I have an excel sheet with xy coordinates and Au grades. So I want to create Au grade contour using Kriging method. How can I do it? Jean Lukusa B.Sc. Geology Trained on Jorc Code GIS Operator +243812156128 ___ Qgis-user mailing list

Re: [Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

On Fri, 30 Apr 2021 at 08:25, krishna Ayyala wrote: > Chris, > Thanks for the reply. Yes, I did run k-means clustering for 4 clusters. It > is creating a new layer called "clusters". This layer has a field called > Cluster_id, ranging from 1 to 4. But, this method is considering all the > points

Re: [Qgis-user] Measure distance along line

On Thu, 29 Apr 2021 at 21:53, Prud'homme Jérémie wrote: > > Hi, > > I am wondering if it's possible to use the Measure distance tool to measure > the distance between two places, following a line. > > For example, I click on a first place on the line, I click on a second place > and the tool

Re: [Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

Chris, Thanks for the reply. Yes, I did run k-means clustering for 4 clusters. It is creating a new layer called "clusters". This layer has a field called Cluster_id, ranging from 1 to 4. But, this method is considering all the points within the circle. I am looking for the points outside the

Re: [Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

Krishna and list, On Thu, Apr 29, 2021 at 2:51 PM krishna Ayyala wrote: > Hello, > I have a circle in which there are randomly distributed points as below. > Each point is a customer. > > [image: image.png] > > > Is there a tool within QGIS that can automatically generate four polygons > or

[Qgis-user] Draw Ellipse/Polygons for areas of maximum concentration

Hello, I have a circle in which there are randomly distributed points as below. Each point is a customer. [image: image.png] Is there a tool within QGIS that can automatically generate four polygons or four ellipses such as below. These polygons are the areas of maximum concentration of the

Re: [Qgis-user] Measure distance along line

Hi, If you have lines, just use the field calculator, add a length field and  use  "$length" (with no quotes) in the expression box. If you CRS is in meters, you will get meters. Nicolas On 2021-04-29 8:49 a.m., Prud'homme Jérémie wrote: Hi, Thanks, I didn't thought about this tool but

Re: [Qgis-user] Measure distance along line

Jérémie, That does sound like a cool feature. The work around I would use is: - Create a Line Scratch Layer - Trace the path of interest (using the automagic trace feature in snapping) - Get the derived length by using the identify tool. -Bas On Thu, Apr 29, 2021 at 8:49 AM

Re: [QGIS-it-user] Trasformare una porzione di DSM in DTM

In un caso come questo io ritaglierei il DSM tenendo l'area buona (quella senza alberi) poi userei una funzione di patch per riempire i buchi con il DTM. Cercando "patch" in processing ci sono due strumenti idonei: r.patch di GRASS e Rattoppo di SAGA. Non saprei dire quale sia meglio. In

Re: [Qgis-user] Measure distance along line

Hi, Thanks, I didn't thought about this tool but it can do the job. Having the ability to follow the line in the measure tool would be simpler for QGIS beginners, though. BR, Jérémie. Le jeu. 29 avr. 2021 à 14:03, Ujaval Gandhi a écrit : > The closest I can think of is to use the 'Shortest

[Qgis-user] Question about autocompleter

Hi, I'm looking everywhere and can;t find any solution. I need to add autocompleter to one field in a layer. Value-relation works fine, but the key-value layer is quite big (more than 16k possitions) and the table freezes for a while after every click. "Field map" could be also fine (and works a

Re: [Qgis-user] Measure distance along line

The closest I can think of is to use the 'Shortest path (point-to-point)' tool from the Processing Toolbox. It will allow you to select 2 points on your line layer and give you an output line with the distance along the line as an attribute/ [image: Logo] Ujaval

[Qgis-user] Measure distance along line

Hi, I am wondering if it's possible to use the Measure distance tool to measure the distance between two places, following a line. For example, I click on a first place on the line, I click on a second place and the tool automagically follow the line. Same behavior as what we can do with the use

Re: [Qgis-user] background data

One more potential solution. QGIS has recently added support for vector tiles. Vector tiles have the scaling benefits of standard image map tiles while still behaving kind of like vector layers. Add the ESRI World Basemap by creating a new vector tile service connection (in the browser) and for