Thanks in advance. United States (USA) - Delaware and Maryland. Input the coordinates in a decimal degrees (DD) format. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. NAD27 to HARN equals 0.15m + 0.05m = 0.20m). Identify those arcade games from a 1983 Brazilian music video. ", "(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences. You cannot paste images directly. October 2009 3 Step 4: Add a New Conversion Click the Add button to open the Add/Edit Conversion window. Enter coordinates, select input and output reference system. For example, NAD27, NAD83, and WGS84 are geodetic datums. Two such methods for transforming between NAD27 and NAD83 have been developed by the United States and Canada for use in their respective countries. I have around 10,000 coordinates . I tried using proj4js and proj4php but they cannot do the correct transformation. Assuming your original coordinates are actually WGS84, you just assigned an erroneous CRS of NAD27 (BLM14) the second time you imported the data. Since 1986, geodesists have made several updates to NAD83. To be clear, most monuments have not moved. and HARN could combine uncertainties (that is, NAD27 to HARN equals 0.15 m + 0.05 m = 0.20 m). NAD27 stands for the North American Datum of 1927. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? For example, the latitude and longitude location in a NAD27 datum differs from that same benchmark in NAD83 or WGS84. The World Geodetic System (WGS) is a standard used in cartography, geodesy, and satellite navigation including GPS.The current version, WGS 84, defines an Earth-centered, Earth-fixed coordinate system and a geodetic datum, and also describes the associated Earth Gravitational Model (EGM) and World Magnetic Model (WMM). I've been asked by some users of my Spreadsheet if i could add the the conversion from WGS84 to NAD27. Chris, try this link out http://www.gpsu.co.uk/. All Rights Reserved. If you have an account, sign in now to post with your account. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. To convert between feet and metric dimensions they will be converted based on the U.S. Survey foot definition, . By Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. The average correction between NAD27 and NAD83 is an average of 0.349 northward and 1.822 eastward. It may not display this or other websites correctly. At a geodetic or ellipsoidal height h, . The North American Datum of 1927 (NAD27) is one of the main three geodetic datums in North America. Go to the menu File>Options Select Advanced At the bottom of the list of options, check the option " Use 1904 date system " Customize the time format Now, let's customize the format of our cell: Open the Format cell dialog box ( Ctrl + 1) Select the option Custom In the Type box, enter this format code exactly as it is displayed below The tasks of conversion include: WGS84 is intended for global use. Get your coordinates in the WGS84 on your display. Adoption of the North American Datum (NAD) of 1983 requires that you store and use map data in a coordinate system based on NAD83. When combining data from different users or eras, it is important to transform all information into common geodetic datums. If you are looking for online API solution, you can use MyGeodata Cloud API - you can send data in many GIS formats and set transformation to any known projection and conversion to many GIS formats. Learn more about Stack Overflow the company, and our products. As the name implies, datum transformations transform your data from one datum to another. Enter 1 for East longitudes, -1 for West longitudes, and make sure your longitude degree value is always positive; or, enter a 1, and then enter positive and negative values for the longitude degree value. Datums precisely specify each location on Earths surface in latitude and longitude. Surveyors connected each monument location using mathematical techniques like triangulation. Terms of Use | Privacy Policy Cartisan Total Map Coordinate Converter: Converts from decimal and DDMMSS latitude/longitude to UTM and MGRS, and back again; includes support for 14 datums, including NAD27 and WGS84. Write a TSQL function to convert NAD83 State Plane (specifically ESRI Projection 102738 http://spatialreference.org/ref/esri/102738/) to WGS84 Lat/Lng so I can, in near real-time, plot the original coordinates on a Google Map. I've tried right-clicking on my data layer, and choosing an output CRS, but when I load it back and compare, I see no difference. MERCEDES Asking for help, clarification, or responding to other answers. A datum describes the shape of the Earth in mathematical terms. The latitude and longitude location in the NAD27 datum differs from NAD83 or WGS84. Click Add. Linear Algebra - Linear transformation question. Your previous content has been restored. If I use the Map3D querry method to "draw" the wgs84 linework and cad. If so, shouldn't I see a discrepancy? Our Platform This free online Conversion application is provided by Aspose.Gis. NADCON is the accepted national standard and is the fastest, simplest, and most accurate datum transformation for mapping at scales of 1:200 and smaller. Do you have any affiliation with MyGeodata Cloud? ", "Transformation steps are from NAD27 to NAD83(HARN) (12) (code 8471) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation. Problems with NAD27 included measurement errors and intentional distortions. For example, surveyors benchmarked approximately 250,000 stations. Click on the "Convert" button. North American Datum of 1983 is based on the reference ellipsoid GRS80 which is physically larger than NAD27s Clarke ellipsoid. This difference is known as a datum shift. This is a PHP-Class for geographic coordinates transformation using proj4 definitions. GIS: Convert NAD27 to WGS84 with programming function like PHP (2 Solutions!!) Why does Mister Mxyzptlk need to have a weakness in the comics? Is it possible to rotate a window 90 degrees if it has the same length and width? When you combine these measurements, we arrive at a geodetic datum. Have you attempted anything on your own? Disconnect between goals and daily tasksIs it me, or the industry? Proper gdaltransform syntax to transform a list of coordinates? Coordinates Converter works from all platforms including Windows, Mac, Android, and iOS. Assigning the CRS does not transform the data. All functionality are processed using Our APIs, which are being used by many Fortune 100 companies across 114 countries. Is there a proper earth ground point in this switch box? Shopping at Amazon through the link below helps support the site. What the above-mentioned C source-code does is simply use the two data files as data arrays and offsets into them and interpolates between the 4 numbers that would be up-left, up-right, down-left, down-right from the location you want to convert. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I know it can be done with GIS programs, but I need a programming function ideally in PHP, but I could convert from any language. The NAD27 datum was based on the Clarke Ellipsoid of 1866: The NAD83 datum was based on the Geodetic Reference System (GRS80) Ellipsoid: For any type of work where coordinates need to be consistent with each other, you must use the same geodetic datum. If you have questions about obtaining a more reliable transformation in major urban centers or other areas that are densified, contact ESRI Canada Limited for further details. JavaScript is disabled. Is there a proper earth ground point in this switch box? This difference is known as a datum shift. Depending on where you are in North America, NAD27 and NAD83 may differ in tens of meters for horizontal accuracy. 1720. Geodetic datums form the basis of coordinates of all horizontal positions on Earth. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. But now I cant find it when I search within my apps. How to convert WGS84 to NAD27 in pygeodesy? Available transformations. Does anyone know how to do this or where I can find examples on the web? The grid zones UTM 31N to 37N differ from the standard zone for the Northern Hemisphere, in part to accommodate the southern half of the Kingdom of Norway. The latitude and longitude location in the NAD27 datum differs from NAD83 or WGS84. Method: NADCON Pasted as rich text. The input data is actually on the Old Hawaiian datum. Please see the popular list below. Learn more about Stack Overflow the company, and our products. For example, the State Plane Coordinate System can be referenced to either NAD83 and NAD27 geodetic datums. Posted on 1 second ago; June 24, 2022 . See also: Proper gdaltransform syntax to transform a list of coordinates? What video game is Charlie playing in Poker Face S01E07? Input the coordinates in a decimal degrees (DD) format. The North American Datum of 1983 (NAD 83) is a unified horizontal or geometric datum and successor to NAD27 providing a spatial reference for Canada and the United States. What am I doing wrong here in the PlotLegends specification? Can I tell police to wait and call a lawyer when served with a search warrant? This compares to only 26,000 used in the NAD27 datum. Over time, surveyors have gathered a massive collection of surface measurements to more reliably estimate the ellipsoid. Unfortunately, NAD83 is not the only datum youll encounter. This will only work in the area of validity of NAD27, that is Northern America. You can also see these coordinates on the world map. After, geodesists developed the more accurate NAD 83, which we still use today. It only takes a minute to sign up. help with formula to convert GPS degrees minutes seconds to decimal degrees. How is an ETF fee calculated in a trade that ends in less than a year? However, many of you might have automated your original data layers using NAD27 and continue to do so, primarily because some source data is collected from maps based on NAD27. Unfortunately, NAD27 is not a simple mathmatical formula. Please support me on. Here's an example. (I never took any GIS classes in school, and I've only been working at this for a few weeks.). Datum Transformations Converting Coordinates from NAD27 to NAD83, 25 Map Types: Brilliant Ideas to Build Unbeatable Maps, Ocean Currents Map: Visualize Our Oceans Movement, 3 Wildfire Maps: How to Track Real-Time Fires Around the World. After you get two sets of coordinated in a common datum, there are three steps to get them in alignment: Remember next time in ArcMap when you use the project tool. A common problem is when different coordinate locations are stored in different reference systems. Cartisan Total Map Coordinate Converter does anybody have the Marco for this spreadsheet. a mammoth collection of monument locations, mathematical techniques like triangulation, NOAAs National Geodetic Survey used these survey stations and triangulation. WGS84 frames are specifically named NAD83 (CORS96) and WGS84 (G1150). NAD83 is a geocentric datum (referenced to the center of Earths mass) offset by about 2 meters. I checked the properties of the layers, and one says +datum=WGS84, while the other says +datum=NAD27. This converter applet will convert a single pair of UTM coordinates to latitude/longitude using formulas and constants for the North American Datum of 1927 (NAD27, Clarke Ellipsoid of 1866). Uses NADCON method which expects longitudes positive west; EPSG CRS codes 4267 and 4326 have longitudes positive east. The NAD 83 realization used for SPCS zones depends on the tectonic plate where it is located: North America and Caribbean plates: NAD 83 (2011) But where can I find the origin alignment, axis rotation, and scale information that will allow me to relate Clarke 1866, GRS80, and WGS84? What can a lawyer do if the client wants him to be acquitted of everything despite serious evidence? Has 90% of ice around Antarctica disappeared in less than a decade? This conversion uses the Esri transformation NAD_1927_To_NAD_1983_NADCON. NAD27 and NAD83 -- Significant difference exists between NAD27 and NAD83. About an argument in Famine, Affluence and Morality. Surveyors referenced al coordinates to Kansas Meades Ranch (391326.686 north latitude, 983230.506 west longitude) for the NAD27 datum. Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? It only takes a minute to sign up. Then select Nadcon (NGS) from the Type option list. We reference all coordinates on Earth to a horizontal datum. The first thing you should be careful of is that the physical locations have not changed. Its important to note that the physical location has not changed. There is an ongoing effort at the state level to readjust the NAD83 datum to a higher level of accuracy using state-of-the-art surveying techniques that were not widely available when the NAD83 datum was being developed. When you need to accurately enter latitude and longitude coordinates in a GIS, the first step is to give it a datum. Required fields are marked *, Geodetic Datums: NAD 27, NAD 83 and WGS84. READ MORE: Datum Transformations Converting Coordinates from NAD27 to NAD83, Image credit: NADCON North American Datum Conversion Utility, Clarke 1880 was never used in North America. NAD_1927_To_NAD_1983_Alaska. 10 Topographic Maps From Around the World, Ocean Currents Map: Visualize Our Oceans Movement, Esri JavaScript API Examples: 15 High-Tech Webmaps and Webscenes, 50 Map Projections Types: A Visual Reference Guide [BIG LIST]. Most historical USGS topographic maps and projects by the US Army Corps of Engineers used NAD27 as a reference system. NOAAs National Geodetic Survey used these survey stations and triangulation to form the NAD27 datum. November 18, 2021 called a datum transformation (or coordinate system transformation). I suspect the group that originated the app got bought out or has disbanded. The default NAD27 to WGS84 transformation is NAD_1927_To_WGS_1984_1, . Most overview landmarks have not moved. http://everest.hunter.cuny.edu/mp/software.html Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Most survey monuments have not moved. Can I tell police to wait and call a lawyer when served with a search warrant? Point databases and shape files can be converted from SPCS to lat-long, which is required to use them in the program. There is a basic ellipsoidal projection, but then you are supposed to apply offsets from one of several gigantic tables (basically 200 years of empiracly derived and measured data). Farther offshore NAD27 undefined. Cartisan Map Coordinate Converter: Enter latitude and longitude in separate columns for degrees, minutes and seconds, and have them converted to a DD MM SS string, DD MM.d string, or numeric decimal degrees. Select the Input SRS (the default format is WGS84). Copyright 2000-2023 Groundspeak, Inc. DBA Geocaching. A coordinate transformation is done through a series of mathematical equations. Can airtags be tracked from an iMac desktop, with no iPhone? Hi, looks like the Cartisan Total Map Coordinate Converter is no longer available from the website (actually, the whole sites down) The North American Datum of 1983 (NAD83) is the most current datum in North America. (e.g. Surveyors chose Kansas as a common reference point because it was near the center of the contiguous United States. I converted NAD27 to NAD83 and put on google maps and it was about the same as WGS84 (maybe 5-8 ft difference). These files are also included with the source code (they were on the Web (they're public domain)). Projected coordinate systems are based on geographic coordinates, which are in turn referenced to a datum. Convertir coordenadas UTM NAD27 a WGS84 en ArcGIS - YouTube 0:00 / 6:33 Introduccin Convertir coordenadas UTM NAD27 a WGS84 en ArcGIS ngel A. Gonzlez 35 subscribers Subscribe 36. Click Open Map (appears after the end of the conversion) to visualize the converted coordinates on the World map. - Conversion of Coordinates in Degrees, Minutes and Seconds to Decimal Degrees. How can I take a NAD27 decimal coordinate like 39.748303,-104.998634 and convert it to NAD83 or WGS84 with a programming function in PHP or JS? An example is 52 12. Be forewarned that NAD27 is complicated with all of them. National Spatial Reference System and current survey standard using multi-year adjusted locations based on GNSS from the CORS. This compares to the Clarke ellipsoid with a semi-major axis of 6,378,206.4 m and a semi-minor axis of 6,356,583.8 meters. - YouTube GIS: Convert NAD27 to WGS84 with programming function like PHPHelpful? You can open imagerywith a world file. How to convert WGS84 to NAD27 in pygeodesy? How to transform data points from WGS84 to NAD27? For any type of work where coordinates need to be consistent with each other, you must use the same geodetic datum. If you are marking property or land boundaries or building roads or planning for coastal inundation scenarios, you must know about and use the correct geodetic datums. Why do academics stay as adjuncts for years rather than move around? When you transform NAD83 and NAD27 geographic coordinates to projected State Plane coordinates, it is the same projection method. SPCS DEMs SPCS imagery Is the Earth Round? I suspect theyve had a major website meltdown, and should be back up again shortly; try again later this week. Making statements based on opinion; back them up with references or personal experience. Scope: (null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences. (i.e. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. The photo shown is a benchmark, not a triangulation station. Now project it and change the datum to NAD83. Assigning the CRS does not transform the data. NAD83 corrects some of the distortions from NAD27 over distance by using a more dense set of positions from terrestrial and Doppler satellite data. You can also use command line utilities to convert your coordinates: One way to use gdaltransform is to start a terminal session (OSGeo4W if you are on Windows) and interactively execute: EPSG stands for European Petroleum Survey Group. The datum was redefined and recomputed, resulting in NAD83, which is . Log in . rev2023.3.3.43278. Because where would you be on Earth without having reference to it? A datum describes the shape of the Earth in mathematical terms. Making statements based on opinion; back them up with references or personal experience. Why do modern processors use few advanced cores instead of many simple ones or some hybrid combination of the two? ncdu: What's going on with this second size column? A geodetic datum uniquely defines all locations on Earth with coordinates. The horizontal datums that form the basis of coordinates of all horizontal positions in North America improve. NAD 27 and NAD 83 provide a frame of reference for latitude and longitude locations on Earth. High Accuracy Reference Network (HARN) and High Precision Geodetic Network reworked geodetic datums from 1986 to 1997. Depending on where you are in North America, NAD27 and NAD83 may differ in tens of meters for horizontal accuracy. Trying to understand how to get this basic Fourier Series. However, because the geodetic datums were different, the resulting projected coordinates will also be different. If so then it does the transformation for you. You should see the difference between the projections, i.e. And can you share your projections info? Proj.4 is pretty good, but a perfect example of why I hate to design and execute by committee (with all due respect to the folks overseeing it!). So convenient!!! Canada - Quebec. The UTM system divides the Earth into 60 zones, each 6 of longitude in width. Using QGIS, I loaded my shapefile into one layer and set the CRS to WGS84, then I loaded the same data again and set its layer to NAD27. Asking for help, clarification, or responding to other answers. ), Question: Did I actually transform my data points from WGS84 to NAD27? Remarks: Transformation steps are from NAD27 to NAD83(HARN) (12) (code 8471) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation. SPCS83 (Version 2.1) Converts NAD 83 State Plane Coordinates to NAD 83 geographic positions (latitudes and longitudes) and vice versa. To more clearly see the difference, relative to your Google Maps points (which may be in a different CRS), load the layer, defining it as having a CRS as WGS84 (probably accurate), then right-click on the layer and choose Save As, defining your project CRS of NAD27(BLM14) for the resultant file. Making statements based on opinion; back them up with references or personal experience. 9874) instead of degrees, minutes, and seconds (-73 59' 14. . Right-click total to add Max, Min, Count, Average. Obviously change the reference to suite. My code is GPL licensed, can I issue a license to have my code be distributed in a specific MIT licensed project? A datum defines the radius, inverse flattening, semi-major axis, and semi-minor axis for an ellipsoid. If any of . Conversion between NAVD 88 and the commonly used NGVD 29 varies spatially; however, over most of the study area the following conversion can be used: NGVD 29 = NAVD 88 -3.6 feet. In 1983, surveyors eventually replaced the NAD27 with NAD83. DWalsh wrote: > > Hi Rod, > For example, USGS topographic maps generally were published using a NAD27 datum. En este ejemplo, yo tengo un mapa en NAD27, entonces elegimos este sistema en el botn select coordinate system; este deseo pasarlo a NAD83, este se lo asigno en el siguiente botn del mismo panel (source drawing). Has 90% of ice around Antarctica disappeared in less than a decade? The coordinates for benchmark datum points are typically different between geodetic datums. 3 Answers Sorted by: 6 Did I actually transform my data points from WGS84 to NAD27? The latitudes and longitudes of every other point in North America were based on its direction, angle, and distance away from Meades Ranch. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). From the unified network of survey monuments, the result of triangulation was the North American Datum of 1927 (NAD 27). Earth bulges out more at the equator than at the poles by about 70,000 feet. You would have to perform a datum transformation if youre using data in NAD83. Not the answer you're looking for? Required fields are marked *, Datum Transformations Converting Coordinates from NAD27 to NAD83. Conversions between NAD27 and NAD83. Do new devs get fired if they can't solve a certain bug? Preface: I have a set of lat and long data points from Google Maps, which I believe are in WGS84. The challenge is to get points in different datums to align. Exploring the world of free tools for GIS, GPS, Google Earth, neogeography, and more. A regular grid of control points whose datum shifts are known is used to estimate the shift at other locations. How to tell which packages are held back due to phased updates. North American Datum of 1927 (NAD27) and the North American Datum of 1983 (NAD83). By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. For example, USGS topographic maps generally were published using a NAD27 datum. NAD27 was not used officially in Hawaii or the Alaskan islands. . developers.google.com/maps/documentation/javascript/, How Intuit democratizes AI development across teams through reusability. Proj4php is an OSGeo community project. Benchmarks refer to elevation only and not to geographic position. Why do small African island nations perform better than African continental nations, considering democracy and human development? It runs with any browser on any device. We have a great community of people providing Excel help here, but the hosting costs are enormous. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Making Maps: A Visual Guide to Map Design for GIS Users can select different grids by clicking on the "select grid" link below. Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? At the 67 percent confidence level, this method introduces approximately 0.15 m uncertainty within the coterminous United States, 0.50 m uncertainty within Alaska, 0.20 m uncertainty within Hawaii, and 0.50 m uncertainty within Puerto Rico and the Virgin Islands. Earth bulges out more at the equator than at the poles by about 70,000 feet. Convert NAD27 to WGS84 with programming function like PHP, How Intuit democratizes AI development across teams through reusability. Files are in Microsoft Excel format, but seem to work fine in OpenOffice 2.4. The following projection file converts an NAD27 dataset to an NAD83 dataset in Canada: Why y-coordinates may seem 200 meters too large. NAD83 corrects some of the distortions from NAD27 over distance by using a more dense set of positions from terrestrial and Doppler satellite data. Geodesists use a horizontal datum as the model to translate a spheroid/ellipsoid into locations on Earth with latitude and longitude lines. It provides latitude and longitude and some height information using the reference ellipsoid GRS80. In near offshore regions, results will be less accurate, but seldom in excess of 5.0 meters. Some samples are: Easting (Metre): 398676. What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? The first column, labeled Hemisphere, is multiplied times the longitude, and if you leave it blank, the calculated degree value for longitude will always be zero. How do you convert from GPS data in WGS84 to a GIS built in NAD27 in ArcGIS? Location of data. The Canadian National Transformation predicts to within 0.01 meters of the actual difference for 74 percent of the cases, and within 0.5 meters for 93 percent of the cases. I once had an app on my iPhone called Map Tools which was a datum transformation tool. However, NAD83 is not geocentric with an offset of about two meters. Canadas standard transformation program between NAD27 and NAD83 was developed by the Canadian Geodetic Survey. We reference all coordinates to a datum. Remarks: Transformation steps are from NAD27 to NAD83 (HARN) (12) (code 8471) assuming that NAD83 (HARN) is equivalent to WGS 84 within the accuracy of the transformation. Bessel 1841 was used before Clarke 1866 was adopted because it was based on observations of triangulation arcs of North America. You cannot convert between Old Hawaiian or Alaskan Island and NAD27 because NADCON does not have the necessary information. Therefore, the NADCON computed transformations are extrapolations and no accuracy can be stated.. Conversions between NAD27 and WGS84. The best answers are voted up and rise to the top, Not the answer you're looking for? ", "Parameter files are from NAD83 to NAD83(HARN) (12) (code 1485) assuming that NAD83(HARN) is equivalent to WGS 84 within the accuracy of the transformation. There is a basic ellipsoidal projection, but then you are supposed to apply offsets from one of several gigantic tables (basically 200 years of empiracly derived and measured data). In order to create a geodetic datum, surveyors undertook a mammoth collection of monument locations in the late 1800s. What sort of strategies would a medieval military use against a fantasy giant? Steps of transformation: It provides latitude and longitude and some height information. I am looking for a programming function that can convert NAD27 coordinates to WGS84. Reference codes may be found at spatialreference.org. For application in Gulf of Mexico refer to IOGP report 373-26. Result is 39.748289809487346 -104.99917122555918. i made the assumption that ellps value unchanged without knowing what extact projection your data is in. UTM (Universal Transverse Mercator) is a coordinate system that is based on the WGS84 ellipsoid. datums. Answer: EPSG4326 is just the way to identify WGS84 using EPSG. Well done. none. Actually, because of these changes, there is more than one version of NAD83. Or convert them to any other coordinate I can map onto tableau. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The Add Coordinate Format dialog will appear. Because maps were created in different geodetic datums throughout history, datum transformations are often necessary. I work offshore and dont always have a good internet connection with which to update my apps so I do that from good WiFi before departure. 10 comments caleb87 commented on Oct 5, 2016 proj4php/proj4php#53 Comments are currently closed; feel free to contact me with questions/issues. Macro/VBA to add text from another cell into current cell when I type a certain value. Double-click on any point on the map, and you'll get a text box with the coordinates at that position in lat/long and MGRS, in the program's native WGS84 datum and the one you selected above: WGS84: N35.3125633 W111.693389 12SVE3696807927 NAD27: N35.3125304 W111.692657 12SVQ3703307724 Lat/long shift: 66.5 m E, 4.1 m N, 66.7 m total
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