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WV_IMPORT_DATA

WV_IMPORT_DATA

The WV_IMPORT_DATA procedure allows the user to add a variable to the currently active WV_APPLET widget from the IDL> command prompt.

Syntax


WV_IMPORT_DATA, Data [, MESSAGE_OUT=string] [, PARENT=variable]

Arguments


Data

A one- or two-dimensional array of data, or a structure containing the data.

Keywords


MESSAGE_OUT

A scalar string giving a message to be output to the WV_APPLET message bar.

PARENT

A long integer specifying the ID of the WV_APPLET widget in which to import the data. The default is the most-recently active WV_APPLET widget.

Examples


To import a 1D or 2D array directly into the active WV_APPLET widget:

WV_IMPORT_DATA, Array

To import a data structure:

WV_IMPORT_DATA, {DATA: PTR_NEW(Array), $
    SOURCE: ’Chandra X-Ray Observatory’, $
    TITLE: ’Cygnus X-1 X-Ray Image’, $
    VARIABLE: ’Cygnus X-1’, $
    UNITS: ’Intensity’}

If Data is a structure then it must include at the very least a DATA tag containing a pointer to a one- or two-dimensional array. Recognized tags are shown in the following table. Tags other than these will be quietly ignored.

Tag

Type

Definition

DATA

PTR->Array

Pointer to data array

TITLE

STRING

Long name of data variable

VARIABLE

STRING

Short name of data variable

UNITS

STRING

Units for variable

XNAME

STRING

Name of X coordinate

XUNITS

STRING

Units for X coordinate

XSTART

STRING

Starting value for X coord

DX

STRING

Sampling rate for X coord

YNAME

STRING

Name of Y coordinate

YUNITS

STRING

Units for Y coordinate

YSTART

STRING

Starting value for Y coord

DY

STRING

Sampling rate for Y coord

XOFFSET

LONG

Starting index of X coord to use

XCOUNT

LONG

Number of X coords to use

XSTRIDE

LONG

X sampling interval to use

YOFFSET

LONG

Starting index of Y coord to use

YCOUNT

LONG

Number of Y coords to use

YSTRIDE

LONG

Y sampling interval to use

SOURCE

STRING

Filename or contact info

NOTES

STRING

Miscellaneous notes

COLORS

PTR->Bytarr(3,256)

Pointer to color table for Data

Version History


5.3

Introduced

See Also


WV_APPLET



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