Latest Contributions by MelitaKennedy

It doesn't look like it's been "triaged" yet. That's when the development team reviews it and decides what's going to happen. FYI, there's an extra "1" in the number. It's BUG-000105741.  Melita ... View more

It looks like Brittany's data had a US foot definition (of the FL East state plane zone) assigned to it but was really in meters. That fit with the approximate 500 km offset. Could that be the same problem you're having? Melita ... View more

What coordinate system are you trying to convert to? Or what coordinate system is the data you want to intersect with using? They have released a projected-to-projected transformation but ArcGIS doesn't support that type of transformation. It converts to Kertau 1968 Singapore Grid. It does have zero parameters. That is, it appears to assume the two systems have the same coordinates (within 2 meters).  There haven't been any datum transformations released that I know about. SVY21 may be equivalent to WGS84, but that's a bit unclear to me too. If you want datum transformation parameters for SVY21, you may need to contact the government.  Melita ... View more

It currently does that. In the Add XY Data tool in ArcMap, it uses the data frame's coordinate system by default. If you have a basemap loaded first, that often sets the coordinate system to Web Mercator which is usually not what data in a text or Excel or other table is using. A geographic coordinate system is more likely.  We could start checking the xy table extent versus various coordinate system but for geographic coordinates there's no way to differentiate between NAD83, NAD83 (2011), NAD27, WGS84, ITRF2014, GDA1994, and so on. UTM zones all have the same coordinate system extents so to get a chance at the right zone, the map would already have to be zoomed into that zone. Melita ... View more

No, it isn't. It identifies where the origin of the Y (northing) coordinates start.  ... View more

How far off are they? If you identify/click where the point should be, what are the coordinates? They're still in degree, by the way, not meters. ... View more

I think I had it wrong, and confused Densify with Buffer. Because the Densify with NAD83 is closer to the loxodrome line, I think it's doing a 2D Cartesian densification. If you don't know, a loxodrome is a straight line in Mercator, and may or may not be straight in a different coordinate system.  I'm sorry for the confusion. ... View more

Weird! If I use the Esri World Topographic base map, these coordinates are onshore, and far enough onshore that it doesn't look like a NAD83-WGS84 difference (no more than approx. 6 feet, and I think less in Georgia). They're also onshore if I use the Esri Imagery basemap, which looks a little different from yours. ... View more

Yeah, I knew it wasn't a solution, but because it's finals time for many universities, I thought you might be in a bind and need a quick workaround. If you still have the .prj files, you can move the contents elsewhere. If you're brave and bold, you can change the prj (coordinate systems) folder location after backing up your registry.  Also check file association types in ArcGIS and make sure there isn't a .prj one. I know doing that caused some flakiness in early ArcGIS versions. Melita ... View more

Hi Forest,  Technically, it's a non-specific WGS84 definition. That is, it could be used for any or all versions of WGS84. ... View more

If you have technical questions, particularly tricky ones, try to go to the Showcase on the first day. Remember that technical support is available there too. Ask your questions, because depending on the staffing, you may get told that the best person to speak to isn't there on Tuesday but will be available on Wednesday afternoon or Thursday morning or has a session tomorrow on the subject, etc. Trying to get in touch with the expert may disrupt your planned schedule. You may also end up getting a card or leaving your card with an employee for a follow-up after the conference. That way the employee can discuss the issue with colleagues, work with your data if you can provide it, etc. Also feel free to bring data or programs with you.  Note: The product "islands" in the Showcase are busiest during session breaks and lunchtime. If you can, try to stop in during a session when it's not as busy. Thursday morning until closure at 1:30 tends to not be as busy too. ... View more

All define projection does is add a .prj file. If you know the coordinate system, you could make a copy of the correct definition from the Coordinate Systems\Projected Coordinate Systems folder of the installation. Rename the copy of the .prj to have the same name as the shapefile. Does that work? ... View more