[Qgis-user] Hot Spot Accumulation

[Andrew Harfoot]

For circles of a specific size, one per input data point you'll need to 
build your own using tools from the Processing toolbox:

1. Use the Buffer tool on the input points to 200m to create the circles
2. Use the Join attributes by location tool to attribute the circles 
with counts and / or weighted counts of the input points falling within 
each.

Cheers,

Andy


On 27/09/2018 12:53, GILLEN Finbar wrote:
>
> Hi Nicolas,
>
> I checked that but it doesn’t create a singular circle for each point. 
> In more dense areas it will merge the circles as one.
>
> I would be looking for an individual circle for each point.
>
> Regards
>
> Finbar
>
> *From:* Nicolas Cadieux <nicolas.cadieux at archeotec.ca>
> *Sent:* 27 September 2018 12:51
> *To:* GILLEN Finbar <finbar.gillen at axa.ie>
> *Cc:* qgis-user at lists.osgeo.org
> *Subject:* Re: [Qgis-user] Hot Spot Accumulation
>
> Hi,
>
> I believe heat map will do that. You can use weight from field.
>
> http://www.qgistutorials.com/fr/docs/creating_heatmaps.html
>
> Nicolas
>
>
> Le 27 sept. 2018 à 07:42, GILLEN Finbar <finbar.gillen at axa.ie 
> <mailto:finbar.gillen at axa.ie>> a écrit :
>
>     Hi All,
>
>     Is there a plugin or tool within QGIS that creates a hotspot for
>     each individual point in a dataset and assigns a score based on
>     the amount of points that fall within a given radius, say 200
>     metres (See image below)?
>
>     <image001.png>
>
>     I would be looking to weight the score with a variable within the
>     dataset to.
>
>     Regards
>
>     Finbar
>
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-- 
Andy Harfoot

GeoData Institute
University of Southampton
Southampton
SO17 1BJ

Tel:  +44 (0)23 8059 2719

www.geodata.soton.ac.uk

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