GitHub - HeikkiVesanto/SelectWithin: QGIS plugin for centroid within and point on surface within selections

Branches Tags

Name		Name	Last commit message	Last commit date
Latest commit History 10 Commits
.gitignore		.gitignore
LICENSE		LICENSE
Readme.txt		Readme.txt
__init__.py		__init__.py
compile.bat		compile.bat
fnr.exe		fnr.exe
icon.png		icon.png
icon.svg		icon.svg
metadata.txt		metadata.txt
pack.bat		pack.bat
resource_rc.py		resource_rc.py
resources.qrc		resources.qrc
select_within.py		select_within.py
select_within_dialog.py		select_within_dialog.py
select_within_dialog_base.py		select_within_dialog_base.py
select_within_dialog_base.ui		select_within_dialog_base.ui

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A good guide can also be found at:
http://gisforthought.com/centroid-within-selection-in-qgis/

For the difference between centroid and point on surface see:
http://workshops.boundlessgeo.com/postgis-intro/geometry_returning.html#st-centroid-st-pointonsurface