VisiOmatic web client

Class

TAN

Extends

new TAN(header, optionsopt) → {TAN}

Gnomonic (tangential) projection.

Parameters

  • header object

    JSON representation of the image header.

  • options projParam <optional>

    Projection options: see Zenithal.

See

Returns

  • TAN

    Instance of a TAN projection.

Source

Methods

privatestatic

_rToTheta(r) → {number}

Convert tangential R coordinate to native theta angle.

Parameters

  • r number

    R tangential coordinate in degrees.

Returns

  • number

    Native theta angle in degrees.

Source

privatestatic

_thetaToR(theta) → {number}

Convert native theta angle to tangential R.

Parameters

  • theta number

    Native theta angle in degrees.

Returns

  • number

    R tangential coordinate in degrees.

Source