Re: [Qgis-user] NAD27 to NAD83

2017-10-28 Thread Andre Joost
Am 27.10.2017 um 21:25 schrieb Tyler Veinot: We determined that it is because PROJ4 assumes gridshifts are always from X datum to WGS84, but NAD83 uses GRS80 so my question is, is there a way around this? Should I use a NAD27 to WGS84 gridshift and let QGIS reporject it to NAD83 CSRS? Or is

[Qgis-user] NAD27 to NAD83

2017-10-27 Thread Tyler Veinot
Hi All; This question was up not long ago and I have been speaking with Steve King on it and made some headway but he thought I should repost to the forum. I am going to try and be more clear; I apologize for not being completely competition in communications lol. Here in PEI I have old data and