Getting Started

Documentation

Glish

Learn More

Programming

Contact Us

Version 1.9 Build 1488

News	FAQ
Search	Home

coordsys.setlineartransform - Function

	Package	general
	Module	images
	Tool	coordsys

Set the linear transform

Synopsis
setlineartransform(type, value)

Arguments

type	in	Which coordinate type ?
		Allowed:	String from "direction", "stokes", "spectral", "linear", "tabular"
		Default:	All
value	in	Linear transform
		Allowed:	Array of double

Returns
T or fail

Description

This function set the linear transform component. For Stokes Coordinates this function will return T but do nothing.

You can recover the current linear transform with function lineartransform.

Example

- cs := coordsys(spectral=T, linear=3)
- xf := cs.lineartransform('lin')
- xf
[[1:3,]
    1 0 0
    0 1 0
    0 0 1]
- xf[1,2] := 0.01
- cs.slt(xf,'lin')
- cs.lt('lin')
[[1:3,]
    1 0.01 0
    0 1    0
    0 0    1]