Latest Contributions by MelitaKennedy

Please list the coordinate systems of this map, the footprints layer and the basemap. Do the other maps use the same coordinate system? If the geographic coordinate systems are different between the map and the layers, what geographic/datum transformations are being used? Is it the same one in all the maps? ... View more

EPSG is planning to add the Local projection to its registry. I've been slowly, very slowly writing up the mathematics so that it can be published in the 7-2 Guidance Note. I'm hoping to finish it up over the holidays. Melita ... View more

I'm sorry that I didn't respond sooner. Is the NAD83 data really in the original 1986 version? If so, is it using EPSG:4269 or projected coordinate systems that are based on 4269?  You could use 108190 which approximates the difference between WGS84 at ITRF00 and NAD83. It converts to 4269, but is to CORS96 realization than the original NAD83. At the time we added this transformation, we didn't have a specific CORS96 definition in the software. Depending on when your state (if your data is in a single state), there's an equivalent transformation that converts to NAD83 HARN which may be similar to CORS96. So you might try converting to NAD83, but via the WGS_1984_(ITRF00)_To_NAD_1983_HARN + NAD_1983_To_HARN_XX where XX is the state abbreviation.  Melita ... View more

There's nothing already defined. What will you be doing with the data? Any analyses? What kind? Display only? Etc. Melita ... View more

Can you post a sample row from the table here? If not, can you send me a sample via email? mkennedy at esri dot com ... View more

What do you mean by "geoprocessing"? Which tool are you using? If you're using Add XY Data in ArcMap, what coordinate system are you assigning to the xy data? If it's latitude-longitude values, you need to define that geographic coordinate system. Also are you assigning the correct column to latitude etc.? ... View more

Hi Alicia,  I found a transformation in a pdf but it looks like it converts between ITRF2005 @2003.75 to SWEREF99. The parameters are: TX = 0.033750 TY = 0.029875 TZ = -0.080450 D [ppb] = 0.78  RX [0.001”] =  -2.134 RY [0.001”] = -7.765 RZ [0.001”] = 9.810 and using the coordinate frame method. There's another pdf file that discussion transformations between ITRF2014 and various other frames. It looks like Table 4 has the values to convert between ITRF2014 and SWEREF99, at least for southern Sweden. Because the document states that it's for maritime applications, the transformation may really be good for offshore areas only. Melita ... View more

The lines are the geodesic lines--the shortest path on the ellipsoid, so more like what an airplane would fly. If you want lines that are direct in that projected coordsys you're using, you need to build planar lines. You may need to project the source/target points to that projected coordsys. ... View more

They look good to me. You might have to go to Tech Support and send the data, if possible, in for the locator team to debug. ... View more

If you have the spatial reference, get the ProjectedCoordinateSystem, then the GeographicCoordinateSystem from that. Use the GCS as the target/output coordinate system. ... View more

Hi Mark,  This page doesn't work for you? Call for Presentations | 2020 DevSummit, Palm Spring, California  I did get the Ungerboeck titled page, but waited a few seconds and it reloaded with a place to select a submitter. I was able to move to the next page where I would need to put in a customer number, etc. so I didn't try to go farther. Melita ... View more

see response at https://community.esri.com/thread/243452-project-raster-error-the-operation-was-attempted-on-an-empty-geometry  ... View more