# Questions tagged [transverse-mercator]

The transverse Mercator map projection is an adaptation of the standard Mercator projection.

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### Meridian Convergence in UTM and Gauss Kruger Projection system?

There are points where geographic coordinates (latitude and longitude) are known. I have calculated the UTM (Universal Transverse Mercator) projection coordinates of these points and then I want to ...
36 views

### "Unknown datum" opening GRS80 Transverse Mercator in R

I am working with a shapefile (available here as a 15MB ZIP) with a projection defined as follows: GEOGCS["GCS_GRS_1980",DATUM["D_GRS_1980",SPHEROID["GRS_1980",6378137,...
20 views

### How well does an affine linear transform approximate the transform between two transverse mercator projections?

How well can an affine linear transform approximate the transformation between two different Transverse Mercator Projections? I've got an area where different coordinate systems are used. ...
237 views

### Transverse Mercator Projection formula for WGS84 to UTM zone40N (32640)

I want to convert Lat Long (in WGS84) to UTM zone40N (EPSG::32640) in Excel. So I'm creating a macro for it by following the EPSG Guidance Note 7, part 2. I'm following the JHS Formula for ...
245 views

### QGIS 3 and Southern Hemisphere, Transverse Mercator Projection - Schwarzeck

Working with QGIS Desktop 3.4.12 with GRASS 7.6.1 (Long Term Support) The following process: New Project > CRS = WGS84 Add 2 x shapefile WGS84 layers (From http://www.naturalearthdata.com/...
201 views

### Converting NZTM2000 projection to Lat-Long system using PHP

Is there a way to convert coordinates from New Zealand Transverse Mercator to Google compatible longitude and latitude using PHP? I have tried PHP-COORD library, but it does not have the NZTM option.
256 views

### Projecting Irish TM65 to ITM95 in ArcGIS 10.6

Some years ago I created a polygon coverage of Wexford Harbour in Ireland by tracing a rectified aerial image of the harbour using ArcGIS. Four tic points on the imagery were known locations; their ...
118 views

### What parameters do azimuthal and transverse cylindrical projection in secant case have as proj4 string

conical equal-area projection, secant case has e.g. +proj=aea +lat_1=... +lat_2=... +lon_0=... +lat_0=... +x_0=... +y_0=... etc... I would ask if there is such thing, for transverse cylindrical ...
233 views

### Relation between scale factor and standard meridians/parallels

Let's use transverse Mercator with a custom zone, with central meridian 30, the zone is 3 degrees wide at the equator, with a scale factor k=1, it means that the cylinder touching the spheroid along ...
168 views

### State Plane Scale Factor in WKT

I need to convert an old-style projection file (created with Global Mapper) to a WKT format for use in my GIS program (ArcMap or GDAL or whatever). The problem is that my old-style projection file ...
169 views

### How can I change projection of a co-ordinate?

I want to convert a known co-ordinate which is in UTM projection to transverse mercator projection. I know the central meridian, scale factor, false easting, false northing value. Can someone give me ...
156 views

### From transverse mercator to lat lon

Based on following information: Size is 1200, 1400 Coordinate System is: PROJCS["unnamed", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84", 6378137, 298.257223563, ...