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I am looking for a piece of software that will easily let me display lat long points from a CSV file on a map, then be able to select a group of points (via a box or drawing), delete the points and resave as a CSV.

  • ArcGIS requires way too many steps to do this over and over again
  • Power map in Excel shows the points but can't be edited
  • Tableaux shows the points on a map, allows me to filter the bad points out but have not found a way to then resave the filtered data to a new CSV.

This should be simple.

  • For software recommendations there is the Software Recommendations Stack Exchange – PolyGeo Aug 29 '17 at 7:06
  • QGIS can do that, but I don't know if it is faster than ArcGIS. – pLumo Aug 29 '17 at 8:00
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QGIS can do that, though probably similar to how ArcGIS does. I don't use ArcGIS, so I cannot tell if you will be satisfied.

If you need to "do this over and over again", you should consider using a simple script instead of a GUI.

ogr2ogr or maybe postgis would be possible.

Here is an ogr2ogr example how it could work:

ogr2ogr -f CSV outfile.csv -dialect sqlite -sql 'SELECT * FROM infile WHERE ST_INTERSECTS(MakePoint(CAST(x AS float),CAST(y AS float)), MakePolygon([...]))` infile.csv

Some Pointers:

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FME is really useful for this task (but it's commercial, not open source). It supports conversion of almost all spatial formats and allows advanced filtering. https://www.safe.com/fme/fme-desktop/

Using FME to read or write Comma Separated Value (CSV) data: https://knowledge.safe.com/articles/687/using-fme-to-read-or-write-comma-separated-value-c.html

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