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2. Working with WinDisp3.5

WinDisp was developed to display satellite images, maps and associated databases. The available functions in WinDisp3.5 (following the order in the principal menu) are:


To open, close, save and print files or to exit WinDisp3.5


To cut, copy, paste, cancel, etc.


To enlarge or move images, and to display graphs


To draw points or lines, to write text, etc. within the graphics


To store menu operations for repetitive use


To define a panel of options for the display of the windows


To apply functions for analyzing images


To choose the format and display of the windows


To open the help file or the presentation window of WinDisp3.5

This chapter will show you with illustrated examples, how to use these functions. To enhance your knowledge of the possibilities of WinDisp3.5, consult the detailed information concerning each function in Chapter 3. All the menus, buttons, etc. conform as much as possible to the standards of Microsoft Windows Common User Access (CUA). Different interface types are available in WinDisp3.5, providing different degrees of automation:

Buttons (see Section 2.1.): a panel of buttons allows quick access to the most common functions.

Dialog box (see Section 2.2.): all the parameters are linked to menu options by a standard dialog box.

Browse buttons: the browse buttons included in the dialog boxes allow quick access to many standard parameters such as files, colors, types of point, line and fill, and fonts.

Projects (see Section 2.5.): a series of presentation commands can be combined in a project, to allow easy access to many data layers for the same region.

Variables: variables can be defined allowing the user to select parameters from a range of parameters. This is typically adapted to the selection of images, map layers and data fields within a project.

Batch (see Section 2.6.): a batch file contains the executed functions and allows automatic retrieval of specific routines. The panel of functions includes the ability to use if-then statements, for-next loops, go-to labels and substitution of variables.


You will find all the files used to illustrate this chapter in the accompanying users' support manual. This will allow you to reproduce examples identical to these, in order to clearly understand how WinDisp3.5 opertates. Be careful, however, to copy the necessary files in the correct place on your hard disc, or to adapt the instructions to allow adequate access to the particular directory path.

2.1. Buttons

The most current functions are directly accessible by using the buttons above the main window. Of the following functions only the first three are available by default; the others appear when a window in opened:


Open project

To open a project in a new window.


Open image

To display an image in a new window.


View map

To display a map in the active window, or to superimpose a map onto an image, a bitmap or a map already displayed in the active window.



To print the contents of the active window.



To cut a portion of graphics or text and to copy it to the clipboard.



To copy a portion of graphics or text to the clipboard.



To paste the contents of the clipboard to the active window.


Zoom In

To zoom in on the image in the active window.


Zoom Out

To zoom out on the image in the active window.


Draw point

To draw one or several points in the active graphics window.


Draw line

To draw a line in the active graphics window.


Draw region

To draw a polygon in the active graphics window.


Draw box

To draw a rectangle in the active graphics window.


Add text

To write text in the active graphics window.


Color polygon

To color a polygon in the active window.

To obtain more details concerning these functions, refer to Chapter 3.

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This manual was prepared by the Global Information and Early Warning System of the United Nations Food and Agriculture Organization
© FAO/GIEWS - 1999