• Georeference-Choosing right Coordinate System

    First of all this is my first post here and also the first post about GIS so sorry if i'll talk nonsense here.   I have an large jpeg and also tiff which are the same map(image) 45568x37632 which i have download...
    Masterpie
    last modified by Masterpie
  • Datum Transformation Guideline/Map for South America

    Hello, I would like to know which datum transformation algorithms are most appropriate for particular regions in South America. I frequently need to transform data from SAD_1969 to PSAD_1956 to WGS_1984 and so on. A...
    spk578
    created by spk578
  • Projected Coordinate System vs. Geographic Coordinate System

    Hey everyone, I'm new to the world of GIS so I was somewhat confused when I saw the option of choosing from either a geographic coordinate system or projected coordinate system in arcMap. My first layer is a Lands...
    sgerhardt
    last modified by sgerhardt
  • Entire National Spatial Reference System (NSRS) to be Modernized in 2022

    In 2022, the National Spatial Reference System (NSRS) is scheduled to be modernized, with new reference frames replacing North American Datum (NAD) 83(2011), NAD 83(PA11) and NAD 83(MA11), or the NAD 83 system.  ...
    spk578
    last modified by spk578
  • Creating a .csf coordinate system file

    Is there a way for me to create a .csf coordinate system file from ArcMap directly, or from .prj coordinate system file ?
    Abdullah.qasrawi93
    last modified by Abdullah.qasrawi93
  • Error agregando servicio AutoCAD for Arcgis

    Hola a todos, venia utilizando ArcGIS for Autocad en la versión 365 y con autocad 2017 de momento me salio un error "The request was aborded: Could not create SSL/TLS secure chanel" entonces instale la versi&oa...
    AgenciaAPP
    created by AgenciaAPP
  • Coordinate System

    How do you use the “Project” tool to create a new layer in the same coordinate system as the other layers?   Thank you,   Nick Z
    NZubel
    last modified by NZubel
  • Problem with ESRI Grid Format in 10.5.1

    My ministry is currently performing some platform testing before we officially migrate from ArcGIS 10.3.1 to 10.5.1. Our group has been asked to participate and I noticed an issue when working with ESRI Grids in ...
    jgaiot
    last modified by jgaiot
  • OGC has approved the Discrete Global Grid System (DGGS)

    Announced via Press Release on the 24th October 2017. OGC announces a new standard that improves the way information is referenced to the earth | OGC    Release Date:  Tuesday, 24 October 2017 UTC Th...
    spk578
    last modified by spk578
  • Esri Job Posting

    My team is looking for a new member. Here's the job posting    Feel free to contact me for more details or questions, but all resumes must go through the usual submission process (via the Careers website). ...
  • Determine Unknown Coordinate Systems: Based on Spatial Extent Values

    I'm currently developing a Python Module to reproject shapefiles and CAD drawings (DWG, DXF) that have known and unknown coordinate systems. The code below deals with the known coordinate systems of the shap...
    Playa
    created by Playa
  • How do I UNDO or remove a transformation?

    I am working in a State Plane/NAD83 projection.   I am adding a WMTS service that is is WGS 1984 on someone else's set.   When the transformation window came up, I chose WGS 1984 to NAS 1983 V.   But no...
    keykeepr
    last modified by keykeepr
  • Measuring lenghts and area, which coordinate system/datum is best?

    I would like to have a discussion regarding which coordinate system(s) are best, and/or are typically used, for measuring both the lengths and areas of mapped features at various scales, and addressing the specific li...
    Luke_GEO
    last modified by Luke_GEO
  • Automated GeoRef App

    A while ago I created a tool that would automatically georeference an image. If you can put down at least one control point on your map and copy the link coordinates in the form of x, y (In the spatial coordinate syst...
    summitsound
    last modified by summitsound
  • Locate Pixel at Specific Coordinate in US National Grid

    I am trying to locate a specific coordinate within the US National Grid displayed over an NDVI raster. 18TXL5220060030 and 18TXL5157160811 as an example.   I have specified the subdivision ticks to be 10 so I...
    nmichelg
    last modified by nmichelg
  • UC2016: Vote now for your favorite button

    It turns out that there's a vote going on at the main UC2016 page: Choose your favorite button.   While there are several fun styles, I had to vote for "Datum? I don't even know 'em"
    MKennedy-esristaff
    last modified by MKennedy-esristaff
  • Using a polygon to clip data

    Dan, i get your drift, but this is a vector file so how do i get the number of cells in the  x,y direction. Or maybe i should convert to raster? I called the source of the data and he was of very little help exce...
    kofilartey
    last modified by kofilartey