Random Points in Polygons behaves unexpectedly

[belg4mit]

What is the bug or the crash?

Although the on-screen description of this feature explains that a point is created for every feature in the source layer, the principle of least surprise would suggest that when the number of points to create is specified by a field that polygons with a null or zero value for the given value should be skipped. Otherwise one can end up with incorrect results if one does not notice this counter-intuitive behavior and removes the null entries. If there is some need for null points, it should be via checkbox which is unchecked by default if a field is used for the point count.

Steps to reproduce the issue

Select a polygon layer with a sparse numeric field and use said field as the point count for this tool.

Versions

Grenobile

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

No response

[agiudiceandrea]

Thanks for reporting. As a workaround, you could use the expression coalesce("field_name", 0) as data-defined override property in order to make the algorithm create no point for features with null value in the "field_name" field.