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imageprofilesupport.setordinate - Function

	Package	general
	Module	images
	Tool	imageprofilesupport

Set an ordinate

Synopsis
setordinate(data, mask, err, ci, ls, which)

Arguments

data	in	The ordinate data
		Allowed:	Vector of float
mask	in	The ordinate mask
		Allowed:	Vector of Bool
		Default:	All good
err	in	The ordinate error
		Allowed:	Vector of float
		Default:	None
ci	in	PGPlot color index of this ordinate when plotted
		Allowed:	Integer
		Default:	1
ls	in	PGPlot line style (pos) or graph marker (neg) of this ordinate when plotted
		Allowed:	Integer
		Default:	1
which	in	Which ordinate index to set
		Allowed:	Integer
		Default:	Next slot

Returns
Integer or fail

Description

This function sets an ordinate directly, whereas function makeordinate generates it for you from an image.

If you don't set the mask it is assumed to be all T (good).

This function returns an index identifying the ordinate index that you are setting. You can display many profiles simultaneously this way. To reset the number of profiles to zero use function setnoprofile. You can ovewrite an ordinate by specifying which.

If argument ls is positive, then the points are drawn as a line with PGPLOT linestyle ls. If it is negative, then the points are drawn as graph markers with PGPLOT marker value abs(ls).

You must call function setprofileaxis before calling this function so that it knows which axis is the profile axis.

Example

- im := image('ngc1313.cube')             
- csys := im.coordsys()                   
- shp := im.shape()                       
- p := imageprofilesupport(csys=csys, shp=shp, widgetset=dws)
- p.setprofileaxis(axis);
- p.makemenus()
-
- pos := csys.referencepixel()            
- p.makeabcissa(pos)                      
-
- blc := pos; blc[3] := 1                 
- trc := pos; trc[3] := shp[3]
- r := drm.box(blc, trc)
- local data, mask
- im.getregion(data, mask, region=r, dropdeg=T)
- idx := p.setordinate (data, mask, 1)                  
- p.plot()