• 3d Helmert 7 Parameter Transformation

    Hello,   I am using ArcMap 10.4.1. My question does not pertain directly to ArcMap, but to an excel 3d similarity transformation calculator I am attempting to develop.  I am using a decent text reference (...
    last modified by CADEngr2014
  • How do I match the projected coordinate system of one file to another?

    Hello,   I have tried quite a few means of projecting the shapefile "Tobacco" to "Chicago City Outline" but I need some help. Not certain as to how or why I've been unable to allow either shapefile's coordinate ...
    last modified by bgr238
  • Why is my AGOL feature layer not projecting on the fly in ArcGIS Pro?

    I have editable feature layers that were published on ArcGIS Online that we edit with Collector.   I realize that when I publish my data to AGOL, it is transformed and re-projected to WGS84 Web Mercator, but whe...
  • How can one publish a web service as a base map in a local CRS?

    I am troubleshooting a query to publish a web map and feature service in a local coordinate reference system. The reasoning behind this request is that the web map and associated feature services will be used in a Web...
    last modified by spk578
  • How to fix wide-stretched projection near poles?

      This is a clip from https://astrogeology.usgs.gov/search/map/Moon/LRO/LOLA/Lunar_LRO_LrocKaguya_DEMmerge_60N60S_512ppd, specifically from 11ºW 43ºS location which is attached here. Is there...
  • What is the process behind changing local coordinates into global coordinates?

    I am working on a zoning project for a small town in Montana and the layers I made into shapefiles from DGN files I have are in an unknown local coordinate system.  I want to change them to a global coordinate sy...
    last modified by kaitlynabr
  • Information on the Coordinate Systems desktop install?

    Looking for more information about the optional install of coordinate systems. The What's new document for Desktop 10.5 document says this: ArcGIS Coordinate Systems Data—Contains the data files required f...
    last modified by curtvprice
  • Geographic Coordinates

    Hello,   I am using Arc Map 10.4.1.   I am at odds with the terminology of "Geographic" coordinate and inquire for a better understanding.  I have heard many interpretations of this term.  Such a...
    last modified by CADEngr2014
  • Why must the CRS for a Global Scene in ArcGIS Pro be WGS 1984 Web Mercator?

    When working with an ArcGIS Pro 2.3 Global Scene the horizontal coordinate system cannot be changed. I found out that the horizontal coordinate system (CRS) "must always be WGS 1984 Web Mercator [I think 3857]". ...
    last modified by spk578
  • Create a projection file

    I would like to create a .prj file in order to exchange data between CAD and GIS. For references, I have 9 ground control points in both the local grid and SPCS NAD83 equivalent and a table with the following values ...
    last modified by david_santos_tristategt
  • Moving from Static Spatial Reference Systems in 2022

    This is a publication by @JimBaumann in ARCUSER.   In 2008, the National Geodetic Survey (NGS) announced in its 10-year plan the replacement of the country’s two national datums: North American Datum ...
    last modified by spk578
  • UTM Coordinate Dataset

    I am running ArcGIS 10.6.1 on a Windows 10 machine. I am trying to locate where the coordinate system datasets are located. I am trying to visually see which coordinate system will work for a proposed project. Thanks...
    last modified by jccgis
  • Where can I find this coordinate reference system (wgs84 30N CM 3W) in ArcGIS?

    I have a data with this coordinate reference system (wgs84 30N CM 3W). and I need to load the data in ArcGIS but I can't seem to find it exactly in ArcGIS. First, I will like to know if it's same thing as th...
    last modified by gis10enj
  • US datum modernization coming in 2022

    The US National Geodetic Survey (NGS) is implimenting a plan to replace NAD 83 and NAVD 88 through a modernization effort.   NGS’s main page on the subject: https://www.ngs.noaa.gov/datums/newdatums...
    last modified by MKennedy-esristaff
  • NCAT vs ArcMap coordinate conversions

    Our enterprise data (typical local gov datasets) is in NAD_1983_StatePlane_Nevada_West_FIPS_2703_Feet and datum=D_North_American_1983.  We have some new 3DEP lidar data that uses D_NAD_1983_2011, so I w...
    last modified by jjohnson_washoe
  • Reproject Patterson Natural Earth to WGS84 (or anything, really)

    I have a set of files that are stored in Tom Patterson's Natural Earth Projection, and I would like to convert them to WGS1984 (or anything that would be more versatile). This will require a transformation, ...
    last modified by amberm
  • Project Rasters-  What are the best practices for continuous data?

    I'm trying to project a PRISM precipitation raster to match a vector data's projected coordinate system so that I can perform zonal statistics on it.   The original raster data has a GCS of NAD 1983 and ...
    last modified by jbrengel
  • CGVD28 to CGVD2013 Transformation File Format

    I'd like to be able to convert between two Canadian vertical coordinate systems: CGVD28 and CGVD2013.  The staff at Natural Resources Canada have a conversion grid which is in ".byn" format (Canadian Geodetic Sur...
    last modified by kenbucha
  • Custom Geographic Transformation Logic?

    Hi,   I need help on understanding the logic in setting up and using custom geographic transformations in ArcGIS Pro. I think I've read everything I was able to find online incl. several issues here on GeoNet. I ...
    last modified by lsmh_COWI
  • Formula For State Plane to Lat/Lon Conversion

    Does anyone know where I can find the equation to put into Excel that will convert CT State Plane coordinates to Lat/Lon?  I know ways to programmatically do this using ArcGIS but have a scenario/workflow where w...
    last modified by gdporto