<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Feb 22, 2017 at 10:26 AM, Nick Fordes <span dir="ltr"><<a href="mailto:nick.fordes@locusview.com" target="_blank">nick.fordes@locusview.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi - <div><br></div><div>I am using the Proj4js library and am having trouble successfully transforming coordindates from ITRF 2008 (EPSG:5332) to NAD83 (2011) (EPSG:6317).</div></div></blockquote><div><br></div><div>Are you getting an error or incorrect results? The espg definitions for 5332 and 6317 are the same (see below) but that's not to say they are correct.</div><div><br></div><div><div># ITRF2008 <5332> +proj=geocent +ellps=GRS80 +units=m +no_defs <></div></div><div><div># NAD83(2011) <6317> +proj=geocent +ellps=GRS80 +units=m +no_defs <></div></div><div> <br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>I have bee successful in entering coordinates into the following tool and generating results for going from WGS83 (EPSG4326) to NAD83 (2011) (EPSG:6317), however, there is no transformation applied. <br></div></div></blockquote><div><br></div><div>"NAD" datums are tied to the North American continental plate, "WGS" datums are tied to the center of the earth. To get meter or sub-meter accuracy transformations you need to use a grid shift transform. Is that what you're looking for when you say that no transformation is applied?</div><div><br></div><div><br></div></div><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr">Richard W. Greenwood, PLS<br><a href="http://www.greenwoodmap.com" target="_blank">www.greenwoodmap.com</a></div></div>
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