I found what seems to answer my question by @xunilk in this closed post: Filling polygons with points or polygons using PyQGIS?

I follow the example of @xunilk with some modifications to adapt to QGIS version 3.4. But at the end of the python scipt I have this error message: "NameError: name 'QgsMapLayerRegistry' is not defined".

In the autocompletion of the python console, there is no QgsMapLayerRegistry function.

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    – PolyGeo
    Oct 29 '18 at 23:36
  • In the QGIS 3 API, QgsMapLayerRegistry has been replaced by QgsProject. So to add your layer you need to do: QgsProject.instance().addMapLayer(mem_layer). You said you made some modifications to adapt to QGIS3, but you should be aware there are numerous API breaking changes in version 3. If you have any other issues you should post your code so we can help you properly.
    – Ben W
    Oct 30 '18 at 2:05
  • You should post a code snippet in any case so that the question can be re-opened and answered properly to help others in the future.
    – Ben W
    Oct 30 '18 at 2:23
  • Thank you Ben W, you have answered my question. I'm new to QGIS and what I want is to convert a DXF inner shape to points for my other not GIS project. Nov 10 '18 at 10:27

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