[Qgis-user] Dúvida sobre mapa de calor

chris hermansen clhermansen at gmail.com
Fri Jan 19 10:43:23 PST 2024


João and list,

On Fri, Jan 19, 2024 at 6:49 AM João Victor Martinelli via QGIS-User <
qgis-user at lists.osgeo.org> wrote:

> Olá, bom dia!
>
> Eu tenho o mapa de calor de um município, e gostaria de calcular a média
> da temperatura de cada um dos bairros, a partir de um shapefile. Será que é
> possível?
>
> Obrigado!
>
> You can use geometric operations to produce the union (menu Vector >
Geoprocessing tools > Union) of the municipal heat map layer and the
neighborhood layer, which will give you polygons with attributes
identifying which municipality and which neighborhood each polygon sits
within.

At this point, you can set the neighborhood heat to be the same value as
the municipal heat in each one of those polygons.

Finally, you can calculate the weighted average heat by neighborhood by
multiplying each polygon area by its heat, summing across the neighborhoods
and dividing by the neighborhood total area.

Does that make sense to you?

-- 
Chris Hermansen · clhermansen "at" gmail "dot" com

C'est ma façon de parler.
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