[Qgis-user] vector shp from NAD83 (CSRS98) to UTM WGS84

[Andre Joost]

Am 01.04.2016 um 09:18 schrieb Neumann, Andreas:

> Maybe it would also be more user friendly, if QGIS would already deliver
> the grid shift files for most countries. But that would bloat QGIS quite
> a bit. The grid shift file for Switzerland (one of the smallest
> countries in the world) is already 3 MB. Maybe a grid shift file manager
> and repository would help for downloading, installing and deleting the
> files and for setting it up properly for easy usage.
>

Grid shift files are not always for free, and free ones might not be 
allowed to be distributed by others (like on qgis.org).

See

https://github.com/OSGeo/proj.4/wiki

https://github.com/OSGeo/proj.4/wiki/NonFreeGrids

http://downloads2.esri.com/support/TechArticles/Grid-based_Transformation_Methods_for_Canada3.pdf

for more details.

HTH,
André Joost