[Qgis-user] On-the-Fly Projections Versus Manual Re-projections

[Aj Hollenbach]

Hi QGIS Community,

I have what I believe may be a fairly straight-forward question on
coordinate reference systems and projections in QGIS. I am currently
working on some maps in the southern Philippines and thus have set my
"project-level" coordinate reference system (CRS) to EPSG 3125. I have
noticed, however, that when I open a vector file or raster file that is
loaded into this project, the CRS still reads as EPSG 4326. Thus, my
question is whether it is necessary to "manually" go in and change the EPSG
of each new layer to EPSG 3125 (i.e. use the Warp Tool for a raster file or
the "Reproject Layer" tool for a vector file), or if there is any issue
with leaving them as EPSG 4326. I note that I am not having any issues
"seeing" the newly added files--meaning the "on-the-fly" projection seems
to be working fine. Appreciate any insights that you might have.

Regards,
Allen
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