1

I am working through training exercises with the Alaska training data using QGIS 3.2 on Windows 8. To create a Heatmap, I load the airports shapefile.

I cannot find the Heatmap plugin using the Plugins Manager for QGIS 3.2 so I try using Processing Tools/Interpolation/Heatmap(KDE) and set the radius to 300000. I get the following error:

Traceback (most recent call last): File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\algs\qgis\Heatmap.py", line 215, in processAlgorithm self.tr('Could not create destination layer')) _core.QgsProcessingException: Could not create destination layer

Execution failed after 0.09 seconds

I am assuming the Interpolation/Heatmap(KDE) is not the correct tool to use. Is there a way to get the Heatmap plugin?

3

In the new version of QGIS:

  1. Right click on your layer.
  2. Select Properties.
  3. In the Properties dialog, switch to the Style tab.
  4. Select Heatmap as the renderer and there you go.
0

I had the same problems, but I invoked my copy of qgis from the console and noticed the following error message.

ERROR 3: Free disk space available is 296422699008 bytes, whereas 3806478785935080 are at least necessary. You can disable this check by defining the CHECK_DISK_FREE_SPACE configuration option to FALSE. Critical: Traceback (most recent call last): File "/usr/share/qgis/python/plugins/processing/algs/qgis/Heatmap.py", line 214, in processAlgorithm self.tr('Could not create destination layer')) _core.QgsProcessingException: Could not create destination layer

Why it needs this much disk space is a bit of a mystery!

But adding a envronment called CHECK_DISK_FREE_SPACE set to false made the tool work until it ran out of disk space.

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