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X Window System Factors (UNIX only)
Display Resolution
The SDL Suite relies on the display resolution reported by the X Server for mapping between screen (pixel) coordinates and diagram unit coordinates. If the X Server has erroneous resolution information, the screen image of an SDL Suite document will have the wrong scale.
If required, the X Server must be adjusted to report the correct display resolution. See the documentation from the computer/software vendor for instructions.
Installed Fonts
The SDL Suite and TTCN Suite tools assumes that the fonts included in the MIT distribution of X11R5 are available.
Font Scaling
Font scaling is used by the SDL Suite only - not the TTCN Suite.
To achieve WYSIWYG between screen and printout, the SDL Suite can use scalable fonts in conjunction with AFM (Adobe Font Metrics) files. Not all fonts scale well without the use of an X11R5 font server. Therefore, it is possible to turn off font scaling (at the price of the WYSIWYG capabilities), in which case the SDL Suite will try to use only pre-scaled X fonts.
To turn on font scaling, edit the X resource file
$telelogic/X11/app-defaults/SDT and change the line:SDT*sdtUseScalableFonts: falseSDT*sdtUseScalableFonts: trueX Server Version
The SDL Suite and TTCN Suite tools have been tested with the MIT X11R5 server. No interoperability with earlier or later versions of X11 is guaranteed.
Window Manager
The SDL Suite and TTCN Suite tools are tested with Mwm, the Motif window manager, version 2.1. It is the recommended window manager to use.
Color Allocation
In the case of another X application having allocated all available color cells, the SDL Suite and TTCN Suite tools might fail to allocate colors for its windows and icons. The SDL Suite and TTCN Suite tools will try to allocate colors as close as possible to the ideal in the case of icons, but window colors cannot be guaranteed. To avoid this problem, a user might consider closing color-intensive applications that are not necessary to run in conjunction with SDL Suite and TTCN Suite.
Changing the Color Settings
The color settings for the SDL Suite are specified in the file $telelogic/X11/app-defaults/SDT and the color settings for the TTCN Suite are specified in the file $telelogic/X11/app-defaults/Itex. You can change the colors by modifying the color resources settings; the color settings are found at the end of this file. When changing the colors, you may find some help about usable color names in the file $telelogic/X11/rgb.txt
How to modify resources is described in Work Order for Modifying Tools Resources.
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