Coordinate Transformations

TPC uses the term Coordinate Transformation to refer to converting coordinate values from one grid to another.

The coordinate transformation tools allow you to:

Convert between geodetic position (Latitude/Longitude) and grid coordinates (Y/X).
Transform all or part of a survey from one projection (grid) to another.

Entering Latitude and Longitude

Enter Latitude positive = North, negative = South or include the letter N before or after the value for North or the letter S before or after the value for South. Example: enter N42.1334568 for 42°13’34.568” North.

Enter Longitude positive=East, negative=West or include the letter W before or after the value for West or the letter E before or after the value for East. Example: enter W128.1334568 for 128°13’34.568” West.

Grid Computations

TPC does all its computations on grid coordinates and displays the equivalent geodetic position based on the current grid settings: TPC does not perform geodetic computations as it computes points.

A typical usage of transformations inside TPC might be as follows:

Select the grid you want when you create a new survey.
Generate a starting Y/X based on a published Latitude/Longitude.
Enter a scale factor to relate your measurements to the grid.
Compute all points on the defined grid.
Generate a Latitude/Longitude for any Y/X on your grid.

Editions

Premium, Professional

Coordinate Transformations

Entering Latitude and Longitude

Grid Computations

Editions

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