1

I'm trying to plot a heatmap in QGIS.

The lat/long coordinates I have are arranged into 4 parallel lines (4 survey transects), with a third column in the CSV file comprising a value ranging from 1 to 49 (a count of the number of species per point).

I have managed to produce a map that simply plots these coordinate points on a basemap, and then apply a heatmap based on density of the points. These coordinates are however taken at regular intervals, and therefore the heatmap is pretty homogenous.

How therefore would I alter it to draw the heatmap based upon the third column of values?

Improve this question
3
  • 2
    You need to weight the points by the column which holds the values, it's right there in the symbology.
    – Erik
    Commented Jun 16, 2020 at 16:08
  • 1
    Easy as that. Wicked, thank you!
    – CephaloRhod
    Commented Jun 17, 2020 at 8:55
  • 1
    A similar question, see here for more details: gis.stackexchange.com/questions/367096/…
    – Babel
    Commented Jul 7, 2020 at 20:45

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.