Function TransverseMercator.tryForwardFactors

Compute conformal factors at a geographic source coordinate.

bool tryForwardFactors(
  const GeographicCoordinate!T source,
  out ConformalProjectionFactors!T result
) const pure nothrow @nogc @safe;

The accepted domain is identical to tryForward. Meridian convergence is returned as a strongly typed angle and point scale is dimensionless.

Example

Example computing conformal factors without throwing. 

import geodesy;
const projection = TransverseMercator!double.fromParameters(
wgs84!double(),
Latitude!double.fromDegrees(0.0),
Longitude!double.fromDegrees(15.0),
0.9996,
500_000.0,
0.0);
const source = GeographicCoordinate!double.fromComponents(
    Latitude!double.fromDegrees(48.20849),
    Longitude!double.fromDegrees(16.37208));
ConformalProjectionFactors!double factors;
assert(projection.tryForwardFactors(source, factors));
assert(factors.pointScale > 0.0);