I want to make simple regular point grid for a polygon but of known distance in meters between points, in QGIS using regular points research tool. How do I input my own distance? The spacing value '0.0001' is not clear what metric that is
The Regular points tool uses
0.0001 by default and this is a value which has the units of measurement of your CRS. It makes sense for CRS using degrees (so, it would be
0,0001 degrees of lat/lon), but not for those using meters or feet as units.
Referring to your comments, it seems that you are working with a Projected Coordinate System and, if you need to generate a new point every 6 km, you should insert
6000 as input value.
This explanation is for the
Point spacing/count parameter, but it also applies to the
Initial inset from corner (LH side) one.