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I am conducting some research for my college. I am using Openjump to display points of interest on a map. The coordinate system is the Irish National Grid which works with Eastings(m) and Northings(m). I have multiple .csv files (8 .csv files so I have layer control for each category of points of interest) which have been loaded into openjump and the points are being displayed in the correct parts of the map. What I want to do is query a point to find out what other points of interest are within a 10km radius any point in question. Would anybody be able to guide me through such a process?
I have very little experience in using GIS. Any help would be appreciated. . . .
You should be able do do your query from the menu
Tools > Queries > Simple query…
Choose the layer you want to use as the reference (or use the selection instead)
Choose the layer you want to query (or all layers)
Note1 : the "is Within" operator is editable so that you can enter 10000 as you wish
Note2 : OpenJUMP will ignore your reference system. If you work with coordinates in meters, just input your radius in meters.
Hope that helps,
Many thanks for your help,