Questions tagged [otf]

Acronym for "on the fly," referring to data reprojected as it is used in software.

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Raster layer doesn't project on the fly in some circumstances in QGIS

I'm using QGIS 3.16.16 and am finding that when I open a project (my default CRS is 4326) and add a vector layer with a 27700 projection and then add a raster layer with a 4326 projection, the raster ...
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How does QGIS reproject data onscreen when the project CRS is geographic?

From what I understand any dataset (GCS or PCS) in QGIS must be "reprojected on the fly" according to the project CRS when viewing the data as a map onscreen. So my question is what type of &...
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Adding custom on the fly transformation in QGIS

I'm using QGIS version 3.20.0. I need to transform EPSG:4326 into EPSG:31468 on the fly, using the equivalent of ArcGIS's "DHDN To WGS 1984 4 NTv2", i.e. with a NTv2 grid. I've tested the ...
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Problem with "On the Fly Projection" (OTF) in QGIS 3.4 when upgrading from QGIS version 2.8 [closed]

I just switched from QGIS 2.8 to 3.4. On the fly projection does not appear to be working. None of the Google searches I do provide help. Looks like most folks want to turn OTF off, and it sounds like ...
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Wrong/Different values from $area and Group Stats

As mentioned in other questions there seems to be a problem with $area when OTF is enabled. In QGIS3 it can not be disabled My project hast EPSG 31255, some layers area 31255 some have different crs....
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