Is it possible to have the representation like the one the heat-map like the figure below using QGIS? The way seems to use buffer options, but I do not know how. Does exist any plugin that helps? I am using QGIS1.8 on windows 7
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2Giulio; the effect you are looking for is a raster operation (rather than vector) and is called a heat map. Try a search for QGIS and heat map and you will find lots of options.– Darren CopeCommented Sep 20, 2013 at 15:42
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Thanks, I will look for it. In web era the solution to a problem is to know the correct word of the problem, the solution is somewhere on :)– AleCommented Sep 23, 2013 at 7:45
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3 Answers
Since Qgis 2.8 heatmap can be rendered on live without any plugin. See the doc http://www.qgis.org/en/site/forusers/visualchangelog28/index.html?highlight=heatmap#feature-live-heatmap-renderer
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1See also a nice tutorial here : qgistutorials.com/en/docs/creating_heatmaps.html– gisnsideCommented Sep 25, 2017 at 7:17
QGIS has a HeatMap Plugin that will do you what you want. Find it under Plugins > Heatmap. There are some instructions here: http://qgis.spatialthoughts.com/2012/07/tutorial-making-heatmaps-using-qgis-and.html
answered Sep 20, 2013 at 16:56
HeatMap Plugin for QGIS 1.8 is available
Heatmap Plugin
The Heatmap plugin allows to create a heatmap from a point vector map. A heatmap is a raster map showing the density or magnitude of point related information. From the result “hotspots” can easily be identified. Activate the Heatmap plugin
First this core plugin needs to be activated using the Plugin Manager (see Section Loading a QGIS Core Plugin). After activation the heatmap icon heatmap can be found in the Raster Toolbar.
Select from menu View ‣ Toolbars ‣ Raster to activate the Raster Toolbar when it is not yet activated.
http://docs.qgis.org/1.8/html/en/docs/user_manual/plugins/plugins_heatmap.html
