Tagged Questions
2
votes
1answer
42 views
What defines a Class in the Heat map plugin?
What defines a Class in the Heat map plugin? As in:
"Black holes like that are usually caused by raster values exceeding the range of the color ramp. Try adding another class with a higher associated ...
5
votes
1answer
190 views
How to create a heatmap using values?
How do I create a 'heatmap' in QGIS based on the values of the different points? I did do this once before with rainfall, but can't remember how!
6
votes
2answers
199 views
How do I compute v.kernel maps in less than 16 hours?
I am using the GRASS GIS 6.4.2 bundled with QGIS 1.8.0, using a PostGIS dataset exported via v.in.org.qgis from QGIS, to create kernel density maps.
The layer has 738,288 points.
My problem is the ...
36
votes
4answers
11k views
How to build effective heat-maps?
Using ArcGIS, QuantumGIS, Grass, and/or GVSIG
What are some of the tools and processes involved in building effective heat maps?
What are the plugins involved?
What are the major data requirements?
...
