18.1.2.1. PNG Format
The PNG format is an extremely capable, portable file format with widespread acceptance in many
computer applications, including the web. It is a lossless, true-color image format that minimizes the
distortion, mottling and pallet limitations found on other formats, while still retaining excellent com-
pression performance. The program creates PNG files with the assistance of the following LIBPNG and
ZLIB packages:
- LIBPNG version 1.0.5 - October 1999
Copyright 1995, 1996, Guy Eric Schalnat, Group 42, Inc.Copyright 1996, 1997 Andreas DilgerCopyright 1998, 1999 Glenn Randers-Pehrson- ZLIB Version 1.1.3
Copyright 1995 - 1998 Jean Loup Gailly and Mark Adler.18.1.2.2. ClearType and Reverse Video
Windows operating systems with ClearType may generat e plots with blurry text using the Reverse Video
option in the Graphics Hard Copy dialog box. Instead, use the Reverse Video option (Utility Menu>
PlotCtrls> Style> Colors> Reverse Video) for the graphics window.
18.1.2.3. Create Exportable Graphics
You can create exportable graphics by selecting Utility Menu> PlotCtrls> Redirect Plots. In addition
to the page layout and configuration options found in the Graphics Hard Copy dialog box, this method
provides additional position, resolution and scaling options. When you use this option, the output
functions for most of these formats are controlled from within the program, instead of by the operating
system. This selection also provides HPGL (plotter) and VRML 3-D rendering output, along with screen
dump and animation options. The Redirect Plots export defaults to raster mode, even if vector is the
prescribed /DEVICE mode. Ensure that the check box in the dialog box is checked for the desired output.
18.1.2.4. Export Windows Metafiles
You can export Windows Metafiles directly from the program (Windows systems only) by selecting
Utility Menu> PlotCtrls> Write Metafile. The subsequent dialog boxes provide limited page layout
and configuration options.
Because most of the export methods listed above use the system's video output to generat e the file
format, they will not work unless you are in interactive mode. If you are not in interactive mode, and
you want to export any of the above graphics types, use the /SHOW command. This method allows
you to generat e output files when you run your analysis from a batch file. The Courier and Helvetica
font files used for text output within the JPEG, PNG and TIFF batch outputs are not accessed from your
operating system. Permission to use these files is granted by Adobe Systems, Inc. and Digital Equipment
Corp. in association with these functions only.
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