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

[Nicolas Cadieux]

Hi, 
I have been looking at that.  If I understand, that grid is for the nad27 to nad83 (original).  Updated version of nad83(csrs96) known as nad83csrs or nad83(csrs98) are not included.  I think  the trx software is the only ways out for those.  I and sending email to see if other grids exist nationally. Will keep you posted. 
BTW, I am not surprised by the fact that they helped you.  These NRCAN people really are great.  I deal with them regularly and they are indeed very helpful.  
Nicolas 
On Apr 1, 2016 11:21, "Donovan Cameron [via OSGeo.org]	" <ml-node+s1560n5259189h20 at n6.nabble.com> wrote: 

	The NTv2 GSB[1] for Canada is shared under the "Open Government License - Canada"[2]. I made a request some years ago and they did it! So it's definitely a good step forward. I'm not a license guru so not sure if it can be packaged and redistributed with FOSS (ie, QGIS or proj). I know for provincial (cause I'm in British Columbia) the Provincial Government has their own GSB for distribution, albeit a different and non-open license (I've asked for it to be switched to open license as well). I tend to use those, so asking with Provincial agencies/ministries would be a good bet too. [1]  http://open.canada.ca/data/en/dataset/b3534942-31ea-59cf-bcc3-f8dc4875081a [2]  http://open.canada.ca/en/open-government-licence-canada On Fri, Apr 1, 2016 at 4:49 AM, Andre Joost < [hidden email] > wrote: 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 

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