ModifiedTransverseMercator Class

Syntax

Visual Basic

'Declaration
 
Public Class ModifiedTransverseMercator 
   Inherits Projection

C#

public class ModifiedTransverseMercator : Projection 

Remarks

In 1972, the USGS devised a projection specifically for the revision of a 1954 map of Alaska which, like its predecessors, was based on the Polyconic projection. It resembles the Transverse Mercator in a very limited manner and cannot be considered a cylindrical projection.

For transferring data to and from Alaska maps, it was necesary to determine projection formulas for computer programming. Since it appeared to be unnecessarily complicated to derive formulas based on the correct construction, it was decided to test empirical formulas with actual coordinates. After various trial values for scale and standard parallels were tested, the empirical formulas used in this class were obtained. These agree with measured values within 0.005 inch at mapping scale for 44 out of 58 measurements made on the map and within 0.01 inch for 54 of them.

Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2