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Subsections

The VisionX Data Manager (VXM)

The VisionX data manager provides interactive access to both image data files and VisionX commands. In addition it also provides access the the VisionX documentation. A snapshot of the vxm interface screen is shown in Figure 1. Images and graphics visualized by vxm are displayed in their own external windows.

**Figure 1:** Snapshot of vxm
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Image Display

The two lower panels labeled "Directory 1" and "Directory 2" permit the user to browse and select files from two different parts of the file system. Changing the directory can is achieved by typing a different name into the directory or be clicking on the ``Browse'' button and selecting a file from a different location.

The list below the Browse button lists all the files and directories in the current directory. An image may be displayed by double clicking on its name or by selecting it and then clicking on the ``Load File'' button. The two directory panels are independent; however if you select a file in one panel and click on the ``Load File'' then the second panel will be set to the same directory as the first.

VisionX image files will be displayed by the xvx command and which will create a separate image display window for each image. A display window may be deleted by typing the letter ``q'' in it. If the file selected is not a VisionX image file then vxm will attempt to identify the file type and select an appropriate display command. Polygon files are rendered as a wireframe image, graph files are plotted if an appropriate plotting program can be found, and tex files are presented in a text view. On UNIX systems many foreign image format files will be displayed if an appropriate conversion filter can be found in the system.

Executing Commands

The main panel above the directory panels contains a command input line and a small panel for logging the results of executed commands. Any command may be typed at the ``Command:'' prompt; commands may include pipes and file indirections. The command is executed on hitting return or by clicking on the ``Run it'' button. The response from the command, if any, will be shown in the log window. A history of commands may be accessed byte selecting the ``'' button at the end of the command line. Selecting a previous command from the history list will load it into the command line where it may be edited and executed. The ``Current Working Dir.'' shows in which directory the command will be executed. The current directory may be manually set at any time. The directory is also automatically set to one of the directory panel directories when a directory change is made or when an image is displayed. This automatic capability may be inhibited by selecting the menu item ``Special=>Fix Working Dir.''. Vxm has an interactive facility for exploring VisionX commands which is described in section 4.

Alternative Image Display (VDM)

A second flavor of vxm called vdm (or alternatively invoked by vxm i) employs a reformulated visual interface that includes two additional 512 x 512 pixel image display panels; each of which is associated with the directory panel above it. In this version images and graphics are displayed, by default, in the window below the directory panel; they may also be displayed in external windows by ``VisionX=>Display'' menu selections.

Next: Command Line Parameters Up: VisionX V4 Users Guide Previous: Introduction