Справочник Пользователя для ITT Rule IDL Version 7.0

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Adding an iTool Window

An iTool drawable area, or window, is created using the CW_ITWINDOW 
compound widget. The iTool window can display iTool visualizations and atomic 
IDL graphics objects, provides a mechanism for the display of the iTools property 
sheet interface, and makes it easy to perform tasks including translation, rotation, and 
scaling of visualizations using standard iTool manipulators. The signature of the 

 function is:

Result = CW_ITWINDOW(Parent, UI [, KEYWORDS] )

where:

•

Parent is the widget ID of the base widget on which the drawable area will be 
displayed.

•

UI is the user interface object associated with the interface.

•

KEYWORDS are keywords either handled explicitly by the widget or passed 
through to the widgets that make up the compound widget.

Two properties of the iTool window are worth understanding. The DIMENSIONS 
keyword specifies the visible area of the window in pixels as a two-element array 
[width, height]. The VIRTUAL_DIMENSIONS keyword specifies the total size of 
the drawing area in pixels as a two-element array [width, height]. These two 
keywords replace the XSIZE/YSIZE and SCR_XSIZE/SCR_YSIZE keywords to the 
standard IDL draw widget. The X_SCROLL_SIZE/Y_SCROLL_SIZE keywords are 
likewise unnecessary and ignored; the iTool window automatically handles the 
addition of scrollbars when necessary.

The contents of an iTool window can be modified interactively by the user in 
numerous ways:

•

using the mouse and one of the available manipulators (translate, rotate, scale, 
etc.).

•

by interactively selecting an available operation from an iTool menu or 
toolbar.

•

by interactively changing a property value using the iTool property sheet.